CN110737116A

CN110737116A - core devices of optical isolator and optical isolator

Info

Publication number: CN110737116A
Application number: CN201911116992.3A
Authority: CN
Inventors: 聂淼
Original assignee: SHENZHEN O-FANS COMMUNICATION TECHNOLOGY Co Ltd
Current assignee: SHENZHEN O-FANS COMMUNICATION TECHNOLOGY Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-01-31

Abstract

The embodiment of the application provides kinds of optical isolator's core device and optical isolator, the cross section design with the polaroid is regular hexagon structure, on the monoblock material of equidimension, compare in the time of cross section for the square before, can cut out more polaroids, the utilization ratio of material has been improved, the production cost is reduced, the core device of having solved current optical isolator comprises polaroid and Faraday rotator that the cross section is the square, when carrying out the scribing to whole piece material, the utilization ratio is not high and the higher technical problem of cost.

Description

core devices of optical isolator and optical isolator

Technical Field

The application relates to optical isolator technical field, especially relates to kinds of optical isolator's core device and optical isolator.

Background

The optical isolator is passive optical devices which only allow unidirectional light to pass through, the working principle is based on the non-reciprocity of Faraday rotation, and the light reflected by the optical fiber echo can be well isolated by the optical isolator.

The optical isolator is also called as a free space isolator and mainly has the functions of realizing forward low-loss passing and reverse high-loss isolation on polarized light.

The core device of the existing optical isolator consists of a polarizing film with a square cross section and a Faraday rotator, and when whole material is scribed, the utilization rate is low and the cost is high.

Disclosure of Invention

The embodiment of the application provides kinds of optical isolator's core device and optical isolator, and the core device who has solved current optical isolator comprises for the polaroid and the Faraday rotator piece of square by the cross section, when carrying out the scribing to whole piece material, and the utilization ratio is not high and the higher technical problem of cost.

In view of the above, the th aspect of the present application provides a optical isolator core device, the core device comprising:

an th polarizing plate, a Faraday rotator, and a second polarizing plate arranged in this order;

the cross section of the polarizer is in a regular hexagon structure;

the cross section of the second polaroid is of a regular hexagon structure;

the cross section of the Faraday rotation piece is of a central symmetry structure.

Optionally, the cross section of the faraday rotator is a regular hexagon structure.

Optionally, the cross section of the faraday rotator is in a circular structure.

Optionally, the cross section of the faraday rotator is a square structure.

Optionally, the th polarizer is rotated by degrees to obtain the second polarizer.

Optionally, the th angle is specifically 45 °.

The second aspect of the present application provides optical isolators, the optical isolators comprising:

a magnetic ring and a core component of an optical isolator as described in any of of the present application;

the core device is fixed in the ring core of the magnetic ring.

According to the technical scheme, the embodiment of the application has the following advantages:

in the embodiment of this application, kinds of optical isolator's core device is provided, the cross section design with the polaroid is regular hexagon structure, on the monoblock material of equidimension, compare in the past when the cross section is the square, can cut out more polaroids, the utilization ratio of material has been improved, the production cost is reduced, the core device of having solved current optical isolator comprises polaroid and Faraday rotator that the cross section is the square, when carrying out the scribing to whole piece material, the not high technical problem of utilization ratio.

Drawings

FIG. 1 is a schematic diagram of structures of core devices of optical isolators in the embodiment of the present application;

FIG. 2 is another schematic structural diagrams of the core devices of the optical isolators disclosed in the present application;

FIG. 3 is a schematic diagram of structures of optical isolators according to an embodiment of the present invention;

FIG. 4 is another schematic structural diagrams of optical isolators according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a conventional material dicing process;

fig. 6 is a schematic diagram of a material scribing process provided in an embodiment of the present application;

wherein the reference numerals are:

1. th polarizing plate, 2 Faraday rotator, 3 second polarizing plate.

Detailed Description

For a better understanding of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of of the present application, rather than all embodiments.

The application has designed optical isolator's core device and optical isolator, and the core device who has solved current optical isolator comprises for the polaroid and the Faraday rotator piece of square by the cross section, when carrying out the scribing to whole piece material, the technical problem that the utilization ratio is not high.

For easy understanding, please refer to fig. 1 and fig. 2, the present embodiment provides core devices of optical isolators, where the core devices include:

an th polarizing plate 1, a Faraday rotator 2, and a second polarizing plate 3 arranged in this order;

the th polarizer 1 has a regular hexagonal structure in cross section;

the cross section of the second polaroid 3 is in a regular hexagon structure;

the cross section of the Faraday rotator 2 is a centrosymmetric structure.

Specifically, referring to fig. 5 and fig. 6, fig. 5 is a schematic diagram of a conventional material dicing process, and fig. 5 can calculate that 256 polarizing plates can be obtained according to fig. 5, and fig. 6 is a schematic diagram of a material dicing process according to an embodiment of the present application, and fig. 6 can calculate that 279 polarizing plates can be obtained according to fig. 6, so that the material utilization rate is increased by 8-9%, and the production cost is correspondingly reduced by 8-9%.

In the embodiment of this application, kinds of optical isolator's core device is provided, the cross section design with the polaroid is regular hexagon structure, on the monoblock material of equidimension, compare when the cross section was the square before, can cut out more polaroids, the utilization ratio of material has been improved, production cost is reduced, the core device who has solved current optical isolator comprises polaroid and the Faraday rotator that the cross section is the square, when carrying out the scribing to whole piece material, the utilization ratio is not high and the higher technical problem of cost.

, the cross section of the Faraday rotator 2 has a regular hexagonal structure.

It is noted that, with particular reference to figure 1, the cross-section of the faraday rotator 2 may be of a regular hexagonal configuration.

, the cross-section of the Faraday rotator 2 has a circular structure.

It is noted that, with particular reference to figure 2, the cross-section of the faraday rotator 2 may be of circular configuration.

, the cross section of the Faraday rotator 2 has a square structure.

, the polarizer 1 is rotated by degrees to obtain the second polarizer 3.

, the degree angle is specifically 45 degrees.

In the case where the th polarizing plate 1 is used as a polarizer and the second polarizing plate 3 is used as an analyzer, since the conventional polarizing plate has a square structure, it is necessary to separately purchase a 0-degree polarizing plate and a 45-degree polarizing plate, respectively, and the 45-degree polarizing plate is expensive.

Based on the core component of optical isolator that this application embodiment provided, second polaroid 3 can be directly obtained by polaroids 1 rotation 45 back, and step has reduced optical isolator's purchase cost.

Referring to fig. 3 and 4, an embodiment of the present application provides optical isolators, including:

a magnetic ring 4 and a core component of an optical isolator as provided in any clause of the embodiments of the present application;

the core device is fixed in the ring core of the magnetic ring 4.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1, kinds of optical isolator's core device, characterized by that, includes:

the cross section of the polarizer is in a regular hexagon structure;

the cross section of the second polaroid is of a regular hexagon structure;

2. The core device of an optical isolator as claimed in claim 1, wherein said faraday rotator has a cross-section embodying a regular hexagonal structure.

3. The core device of an optical isolator as claimed in claim 1, wherein said faraday rotator has a circular configuration in cross-section.

4. The core device of an optical isolator as claimed in claim 1, wherein said faraday rotator has a square configuration in cross-section.

5. The core device of claim 1, wherein said th polarizer is rotated degrees to provide said second polarizer.

6. The optical isolator core device according to claim 5, wherein the th angle is 45 °.

An optical isolator comprising:

a magnetic ring and a core component of an optical isolator as claimed in any of claims 1 to 6 to ;

the core device is fixed in the ring core of the magnetic ring.