CN114205047B

CN114205047B - Automatic configuration method and device for optical multiplexing section

Info

Publication number: CN114205047B
Application number: CN202111504669.0A
Authority: CN
Inventors: 胡骞; 苏广楠; 李俊杰
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2024-07-02
Anticipated expiration: 2041-12-10
Also published as: CN114205047A

Abstract

The embodiment of the disclosure provides an automatic configuration method and device for an optical multiplexing section. The method comprises the following steps: acquiring the input power of BA; setting the gain of the BA; and adjusting the VOA of the BA according to the input power and the gain of the BA so as to ensure that the single wave power output by the BA is in a specific range. The method disclosed by the invention can automatically configure the optical multiplexing section.

Description

Automatic configuration method and device for optical multiplexing section

Technical Field

The present disclosure relates to the field of computer and communication technologies, and in particular, to a method and an apparatus for automatically configuring an optical multiplexing segment.

Background

Currently, conventional wavelength division is controlled independently by each manufacturer, and is generally configured by each manufacturer on a board-by-board basis. For a large bandwidth, point-to-point DCI (DATA CENTER Interconnect) scenario, conventional wavelength division is difficult to be applied due to a plurality of problems such as size, energy consumption, heat dissipation, cost, and sealing. The open decoupled box-type wavelength division device can better meet DCI scenes. DCI scene generally has the characteristics of urgent service demand, quick capacity expansion, quick speed increase and the like, and if OMS parameters are configured by adopting a single-station method, the manual opening time is long and the manual experience is relied on for the configuration management of a box type wave division system.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The embodiment of the disclosure provides an automatic configuration method and device for an optical multiplexing section, which can realize the automatic configuration of the optical multiplexing section.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided an automatic configuration method of an optical multiplexing section, including:

Acquiring the input power of BA;

setting the gain of the BA;

And adjusting the VOA of the BA according to the input power and the gain of the BA so as to ensure that the single wave power output by the BA is in a specific range.

In one embodiment, when the optical multiplexing segment is a single span segment, the method further comprises:

Acquiring the output optical power of the BA;

Acquiring the input optical power of the PA;

acquiring first line loss from the BA to the PA according to the output optical power of the BA and the input optical power of the PA;

setting the VOA of the PA such that the sum of the first line loss and the VOA of the PA is equal to a first design value;

setting the gain of the PA.

In one embodiment, when the optical multiplexing segment is a multi-span segment, the method further comprises:

Acquiring the output optical power of the BA;

Obtaining the input optical power of LA;

acquiring a second line loss from the BA to the LA according to the output optical power of the BA and the input optical power of the LA;

setting the VOA of the LA such that the sum of the second line loss and the VOA of the LA is equal to a second design value;

Setting the gain of the LA.

In one embodiment, the method further comprises:

Obtaining the output optical power of the LA;

Acquiring the input optical power of the PA;

Obtaining third line loss from the LA to the PA according to the output optical power of the LA and the input optical power of the PA;

setting the VOA of the PA such that the sum of the third line loss and the VOA of the PA is equal to a third design value;

setting the gain of the PA.

In one embodiment, the method further comprises:

The input power of the BA is between-19 dBm and 7dBm, and the specific range is +3dBm or +5dBm.

According to one aspect of the present disclosure, there is provided an automatic configuration apparatus of an optical multiplexing section, including:

the BA input power acquisition module is used for acquiring the input power of the BA;

the BA gain setting module is used for setting the gain of the BA;

and the VOA adjusting module is used for adjusting the VOA of the BA according to the input power and the gain of the BA so as to enable the single wave power output by the BA to be in a specific range.

In one embodiment, when the optical multiplexing segment is a single span segment, the apparatus further comprises:

the BA output optical power acquisition module is used for acquiring the output optical power of the BA;

The PA input optical power module is used for acquiring the input optical power of the PA;

a first line loss acquisition module, configured to acquire a first line loss from the BA to the PA according to an output optical power of the BA and an input optical power of the PA;

A VOA setting module of the PA, configured to set a VOA of the PA such that a sum of the first line loss and the VOA of the PA is equal to a first design value;

And the PA gain setting module is used for setting the gain of the PA.

In one embodiment, when the optical multiplexing segment is a multi-span segment, the apparatus further comprises:

The input optical power acquisition module of LA is used for acquiring the input optical power of LA;

A second line loss acquisition module, configured to acquire a second line loss from the BA to the LA according to the output optical power of the BA and the input optical power of the LA;

a VOA setting module of LA, configured to set the VOA of LA so that the sum of the second line loss and the VOA of LA is equal to a second design value;

And the LA gain setting module is used for setting the gain of the LA.

the LA output optical power acquisition module is used for acquiring the output optical power of the LA;

the PA input optical power acquisition module is used for acquiring the input optical power of the PA;

A third line loss acquisition module, configured to acquire a third line loss from the LA to the PA according to the output optical power of the LA and the input optical power of the PA;

a VOA setting module of the PA, configured to set a VOA of the PA such that a sum of the third line loss and the VOA of the PA is equal to a third design value;

And the PA gain setting module is used for setting the gain of the PA.

In one embodiment, the input power of the BA in the automatic configuration of optical multiplexing segments is between-19 dBm and 7dBm, the specific range being +3dBm (200G) or +5dBm.

In the technical solutions provided in some embodiments of the present disclosure, automatic configuration of an optical multiplexing segment can be achieved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The following figures depict certain illustrative embodiments of the invention, in which like reference numerals refer to like elements. These described embodiments are to be considered in all respects as illustrative and not restrictive.

FIG. 1 is a flow chart of one embodiment of a method for automatically configuring an optical multiplexing segment according to the present invention;

FIG. 2 is a flow chart of one embodiment of a method for automatically configuring an optical multiplexing segment according to the present invention when the optical multiplexing segment is a single span segment;

FIG. 3 is a flow chart of one embodiment of a method for automatically configuring an optical multiplexing segment according to the present invention when the optical multiplexing segment is a multi-span segment;

FIG. 4 is a flow chart of one embodiment of an automatic configuration method of an optical multiplexing segment of the present invention when the optical multiplexing segment is a multi-span segment;

FIG. 5 illustrates a schematic diagram of the concept of automatic configuration of an optical multiplexing segment of the present disclosure;

FIG. 6 illustrates a two-span scene structure schematic of the present disclosure;

Fig. 7 is a schematic structural diagram of an embodiment of an automatic configuration device of an optical multiplexing section according to the present invention;

Fig. 8 is a schematic structural diagram of an embodiment of the automatic configuration device of the optical multiplexing section of the present invention when the optical multiplexing section is a single span section;

fig. 9 is a schematic structural diagram of an embodiment of the automatic configuration device of the optical multiplexing section of the present invention when the optical multiplexing section is a multi-span section;

Fig. 10 is a schematic structural diagram of an embodiment of the automatic configuration device of the optical multiplexing section of the present invention when the optical multiplexing section is a multi-span section;

Fig. 11 is a schematic structural diagram of a network management system including wavelength division of an automatic configuration apparatus (multiplexing section automation configuration module) of an optical multiplexing section of the present disclosure in one embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

Aiming at the problems of long manual opening time and dependence on manual experience in the wavelength division multiplexing technology, the disclosure provides an automatic configuration method of an optical multiplexing section, which can automatically configure the created optical multiplexing section.

FIG. 1 is a flow chart of an embodiment of a method for automatically configuring an optical multiplexing segment according to the present invention. As shown in fig. 1, the method of this embodiment includes:

S110, acquiring the input power of the BA.

S120, setting the gain of the BA;

And S130, adjusting the VOA of the BA according to the input power and the gain of the BA so as to enable the single-wave power output by the BA to be in a specific range.

In one embodiment, the input power of the BA is between-19 dBm and 7dBm, the specific range being +3dBm or +5dBm. Wherein dBm is (decibel relative to one milliwatt) decibel milliwatts.

Fig. 2 is a flowchart of an embodiment of the method for automatically configuring an optical multiplexing segment according to the present invention when the optical multiplexing segment is a single span segment. As shown in fig. 2, the method of this embodiment includes:

s210, obtaining the output optical power of the BA;

s220, acquiring the input optical power of the PA;

s230, acquiring first line loss from the BA to the PA according to the output optical power of the BA and the input optical power of the PA;

S240, setting the VOA of the PA to enable the sum of the first line loss and the VOA of the PA to be equal to a first design value;

S250, setting the gain of the PA.

Fig. 3 is a flowchart of an embodiment of the method for automatically configuring an optical multiplexing segment according to the present invention when the optical multiplexing segment is a multi-span segment. As shown in fig. 3, the method of this embodiment includes:

s310, obtaining the output optical power of the BA;

s320, obtaining the input optical power of LA;

s330, obtaining second line loss from the BA to the LA according to the output optical power of the BA and the input optical power of the LA;

S340, setting the VOA of the LA so that the sum of the second line loss and the VOA of the LA is equal to a second design value;

s350, setting the gain of the LA.

Fig. 4 is a flowchart of an embodiment of the method for automatically configuring an optical multiplexing segment according to the present invention when the optical multiplexing segment is a multi-span segment. As shown in fig. 4, the method of this embodiment includes:

S410, obtaining the output optical power of the LA;

s420, acquiring the input optical power of the PA;

s430, obtaining third line loss from the LA to the PA according to the output optical power of the LA and the input optical power of the PA;

s440, setting the VOA of the PA to enable the sum of the third line loss and the VOA of the PA to be equal to a third design value;

S450, setting the gain of the PA.

The automatic configuration method of the optical multiplexing section can realize the automatic configuration of the optical multiplexing section.

The disclosure is described in detail below in connection with specific examples:

The present disclosure provides an automated configuration method, apparatus and system for optical multiplexing segments. Meanwhile, the method is suitable for single span (only including BA and PA) or short-distance multi-span (including BA, PA and equal to or more than one LA) scenes, and the box type wavelength division control system (or other systems) automatically configures the created optical multiplexing segments, wherein the automatic configuration comprises gains of BA (optical power amplifier), PA (pre-amplifier), LA (optical line amplifier) and attenuation values of VOA (variable optical attenuator) on the optical line.

Fig. 5 shows a schematic diagram of the idea of automatic configuration of an optical multiplexing segment of the present disclosure.

In fig. 5a may be BA and Z may be PA.

Triggering conditions: after the creation of the OMS (Optical Multiplex Section, optical multiplexing section) is completed, the optical layer OMS is required to be automatically configured according to the configuration method disclosed by the disclosure, so that the optical layer system is in an optimal working state.

Configuration sequence: configuring according to the direction, namely configuring the directions A to Z firstly, and then configuring the directions Z to A;

fig. 6 shows a schematic diagram of a two-span scene structure of the present disclosure.

Referring to fig. 6, the oms automatic configuration method (specific flow) is:

step 1, measuring BA input power;

step2, setting BA gain: the recommended value is 20dB, other values may be preset.

Step 3, setting the VOA of BA: referring to the BA input power and the BA gain measured in the step 1, adjusting the VOA to enable the single wave power output by the BA to reach +3dBm (200G) or +5dBm (400G), and simultaneously requiring the BA input power to be in a dynamic range (dynamic range reference: 19 dBm-7 dBm);

Step 4. Measuring BA output optical power (for other spans of multiple spans, here LA)

Step 5. Measuring LA input optical power (for the last segment of the multispan, here PA)

Step 6, calculating line loss: line loss = BA output optical power-LA input optical power

Step 7, setting the VOA of LA: setting the VOA so that "line loss+voa loss=design value" (recommended value 22dB, other values may be preset);

step 8, setting the gain of LA: the design value is consistent with the design value;

step 9. Subsequent adjustment of each stage LA and PA, repeating the steps 4-8.

In fig. 6, OTU (Optical Transfer Unit) is an optical repeater, OP is optical protection, MUX is a multiplexer, and DEMUX is a demultiplexer.

Fig. 7 is a schematic structural diagram of an embodiment of an apparatus for automatically configuring an optical multiplexing segment according to the present invention. As shown in fig. 7, the automatic configuration apparatus 700 of an optical multiplexing section includes:

A BA input power acquisition module 710, configured to acquire an input power of the BA;

A BA gain setting module 720, configured to set a gain of the BA;

and a VOA adjusting module 730 of the BA, configured to adjust the VOA of the BA according to the input power and the gain of the BA so that the single wave power output by the BA is within a specific range.

In one embodiment, the input power of the BA is between-19 dBm and 7dBm, the specific range being +3dBm (200G) or +5dBm.

Fig. 8 is a schematic structural diagram of an embodiment of the automatic configuration device of the optical multiplexing section of the present invention when the optical multiplexing section is a single span section. As shown in fig. 8, the automatic configuration apparatus 800 of an optical multiplexing section includes:

And the PA gain setting module is used for setting the gain of the PA.

Fig. 9 is a schematic structural diagram of an embodiment of the automatic configuration device of the optical multiplexing section in the present invention when the optical multiplexing section is a multi-span section. As shown in fig. 9, the automatic configuration apparatus 900 of an optical multiplexing section includes:

the LA input optical power acquisition module is used for acquiring the input optical power of LA;

And the LA gain setting module is used for setting the gain of the LA.

Fig. 10 is a schematic structural diagram of an embodiment of the automatic configuration device of the optical multiplexing section of the present invention when the optical multiplexing section is a multi-span section. As shown in fig. 10, the automatic configuration apparatus 1000 of an optical multiplexing section includes:

And the PA gain setting module is used for setting the gain of the PA.

Fig. 11 is a schematic structural diagram of a network management system including wavelength division of an automatic configuration apparatus (multiplexing section automation configuration module) of an optical multiplexing section of the present disclosure in one embodiment of the present disclosure. Referring to fig. 11, the disclosure may be implemented by a network management system (or other systems) of box-type wavelength division, and the automatic configuration function of the optical multiplexing section may be implemented by using topology, network elements and site management modules that the network management system generally has. The interaction flow of each module in the system is shown in fig. 11.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

It should be noted that although in the above detailed description several modules, units and sub-units of the apparatus for action execution are mentioned, this division is not mandatory. Indeed, the features and functions of two or more modules, units, and sub-units described above may be embodied in one module, unit, and sub-unit, in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module, unit, and sub-unit described above may be further divided into ones that are embodied by a plurality of modules, units, and sub-units.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a touch terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An automatic configuration method for an optical multiplexing section, comprising:

Acquiring the input power of BA;

setting the gain of the BA;

adjusting the VOA of the BA according to the input power and the gain of the BA so as to enable the single wave power output by the BA to be in a specific range;

When the optical multiplexing segment is a single span segment, the method further comprises:

Acquiring the output optical power of the BA;

Acquiring the input optical power of the PA;

setting the gain of the PA;

the specific range is +3dBm or +5dBm.

2. The method of claim 1, wherein when the optical multiplexing segment is a multi-span segment, the method further comprises:

Acquiring the output optical power of the BA;

Obtaining the input optical power of LA;

Setting the gain of the LA.

3. The method according to claim 2, wherein the method further comprises:

Obtaining the output optical power of the LA;

Acquiring the input optical power of the PA;

setting the gain of the PA.

4. The method according to claim 1, wherein the method further comprises:

The input power of the BA is between-19 dBm and 7 dBm.

5. An apparatus for automatically configuring an optical multiplexing segment, comprising:

the BA gain setting module is used for setting the gain of the BA;

the VOA adjusting module of the BA is used for adjusting the VOA of the BA according to the input power and the gain of the BA so as to enable the single wave power output by the BA to be in a specific range;

when the optical multiplexing segment is a single span segment, the apparatus further comprises:

The PA gain setting module is used for setting the gain of the PA;

the specific range is +3dBm or +5dBm.

6. The apparatus of claim 5, wherein when the optical multiplexing segment is multi-span, the apparatus further comprises:

And the LA gain setting module is used for setting the gain of the LA.

7. The apparatus of claim 6, wherein the apparatus further comprises:

And the PA gain setting module is used for setting the gain of the PA.

8. The apparatus of claim 5, wherein,

The input power of the BA is between-19 dBm and 7 dBm.