JPS5712090B2 - - Google Patents
Info
- Publication number
- JPS5712090B2 JPS5712090B2 JP10623878A JP10623878A JPS5712090B2 JP S5712090 B2 JPS5712090 B2 JP S5712090B2 JP 10623878 A JP10623878 A JP 10623878A JP 10623878 A JP10623878 A JP 10623878A JP S5712090 B2 JPS5712090 B2 JP S5712090B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
- G01M11/333—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face using modulated input signals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
- G01M11/335—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face using two or more input wavelengths
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10623878A JPS5533623A (en) | 1978-09-01 | 1978-09-01 | Measurement of break standardizing frequency of refractive index distribution type and transmission mode of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10623878A JPS5533623A (en) | 1978-09-01 | 1978-09-01 | Measurement of break standardizing frequency of refractive index distribution type and transmission mode of optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5533623A JPS5533623A (en) | 1980-03-08 |
| JPS5712090B2 true JPS5712090B2 (en) | 1982-03-09 |
Family
ID=14428530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10623878A Granted JPS5533623A (en) | 1978-09-01 | 1978-09-01 | Measurement of break standardizing frequency of refractive index distribution type and transmission mode of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5533623A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717834A (en) * | 1980-07-07 | 1982-01-29 | Nippon Telegr & Teleph Corp <Ntt> | Method for measuring cut-off wavelength of optical fiber |
| JPS6172666U (en) * | 1984-10-18 | 1986-05-17 | ||
| EP0614074B1 (en) * | 1992-08-25 | 1998-05-13 | Kabushiki Kaisha Toshiba | Optical wavelength measuring instrument |
| JP7270913B2 (en) * | 2020-02-27 | 2023-05-11 | 日本電信電話株式会社 | Method and apparatus for evaluating mode group delay characteristics of optical fiber |
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1978
- 1978-09-01 JP JP10623878A patent/JPS5533623A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5533623A (en) | 1980-03-08 |