JPS57122404A - Optical fiber for high-power transmission - Google Patents
Optical fiber for high-power transmissionInfo
- Publication number
- JPS57122404A JPS57122404A JP56008512A JP851281A JPS57122404A JP S57122404 A JPS57122404 A JP S57122404A JP 56008512 A JP56008512 A JP 56008512A JP 851281 A JP851281 A JP 851281A JP S57122404 A JPS57122404 A JP S57122404A
- Authority
- JP
- Japan
- Prior art keywords
- core
- coefft
- wavelength
- loss
- stokes light
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
PURPOSE:To prevent an increase in loss of an optical fiber due to the generation of Stokes light by forming a plurality of cores in the fiber, using one of the cores to transmit signal light, and combining this core with other core at the wavelength of primary Stokes light. CONSTITUTION:A core 12 is formed at the center of a clad 11, and a core 13 is formed at a distance (d) from the center of the core 12. The coefft. alphas of loss of the core 13 other than the core 12 for transmitting signal light is made larger than the coefft. ge of effective Raman amplification, the wavelength of the combination of the core 12 with the core 13 is allowed to coincide with the wavelength of primary Stokes light, and the coefft. C of combination is allowed to satisfy the relation of the equation (where alphao is the coefft. of loss of the core 12). Primary Stokes light generated by the power of signal light entering the core 12 combines with the core 13, and it is attenuated in the core 13. Accordingly, an increase in wavelength dispersion due to induced Raman scattering can be prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56008512A JPS57122404A (en) | 1981-01-21 | 1981-01-21 | Optical fiber for high-power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56008512A JPS57122404A (en) | 1981-01-21 | 1981-01-21 | Optical fiber for high-power transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57122404A true JPS57122404A (en) | 1982-07-30 |
| JPS616362B2 JPS616362B2 (en) | 1986-02-26 |
Family
ID=11695176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56008512A Granted JPS57122404A (en) | 1981-01-21 | 1981-01-21 | Optical fiber for high-power transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57122404A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0636868A1 (en) * | 1993-07-22 | 1995-02-01 | York Limited | Optical time domain reflectometry |
-
1981
- 1981-01-21 JP JP56008512A patent/JPS57122404A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0636868A1 (en) * | 1993-07-22 | 1995-02-01 | York Limited | Optical time domain reflectometry |
| EP1338876A2 (en) * | 1993-07-22 | 2003-08-27 | York Limited | Optical time domain reflectometry |
| EP1338877A2 (en) * | 1993-07-22 | 2003-08-27 | York Limited | Optical time domain reflectometry |
| EP1338877A3 (en) * | 1993-07-22 | 2003-09-03 | York Limited | Optical time domain reflectometry |
| EP1338876A3 (en) * | 1993-07-22 | 2003-09-03 | York Limited | Optical time domain reflectometry |
| EP1345020A1 (en) * | 1993-07-22 | 2003-09-17 | York Limited | Optical time domain reflectometry |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616362B2 (en) | 1986-02-26 |
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