JPS56150723A - Optical fiber frequency discriminator - Google Patents
Optical fiber frequency discriminatorInfo
- Publication number
- JPS56150723A JPS56150723A JP5299380A JP5299380A JPS56150723A JP S56150723 A JPS56150723 A JP S56150723A JP 5299380 A JP5299380 A JP 5299380A JP 5299380 A JP5299380 A JP 5299380A JP S56150723 A JPS56150723 A JP S56150723A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- optical fiber
- fabry
- branching circuit
- optical
- 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
- 239000013307 optical fiber Substances 0.000 title abstract 4
- 239000000835 fiber Substances 0.000 abstract 5
- 230000003287 optical effect Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000002310 reflectometry Methods 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/26—Generating the spectrum; Monochromators using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
PURPOSE:To miniaturize an optical frequency discriminator and improve its vibration-resistant stability and temp. stability by combining a Fabry-Perot resonator consisting of a single mode optical fiber and an optical branching circuit of a dividing ratio 1:1 in constituting said discriminator. CONSTITUTION:A fiber 9 for signal input is taken out by a 50% transmittance dielectric multilayered film 12 at a 45 deg. incident angle, is connected to fibers 9', 9'' to constitute a branching circuit of a dividing ratio 1:1, and similarly, fibers 10, 10', 10'' also constitute a branching circuit of 1:1. The fiber 9' is connected to the optical fiber, Fabry-Perot interferometer 11 of which both ends are vapor-deposited with dielectric multilayer films 14, 15 of high reflectivities after having been optically polished. The transmission power of the optical fiber, Fabry-Perot interferometer 11 is measured with a detector 16, whilist the reference light from the fiber 10' is measured of light power with a detector 17. The outputs of both these detectors 16, 17 are conducted to a differential amplifier 8, by which the discrimination of the light frequency is accomplished from the output thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5299380A JPS56150723A (en) | 1980-04-23 | 1980-04-23 | Optical fiber frequency discriminator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5299380A JPS56150723A (en) | 1980-04-23 | 1980-04-23 | Optical fiber frequency discriminator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56150723A true JPS56150723A (en) | 1981-11-21 |
JPS6329725B2 JPS6329725B2 (en) | 1988-06-15 |
Family
ID=12930443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5299380A Granted JPS56150723A (en) | 1980-04-23 | 1980-04-23 | Optical fiber frequency discriminator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56150723A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0216509A (en) * | 1988-07-05 | 1990-01-19 | Furukawa Electric Co Ltd:The | Optical multiplexer demultiplexer |
US7245837B2 (en) | 2002-08-15 | 2007-07-17 | Fujitsu Limited | Optical transmitting device |
-
1980
- 1980-04-23 JP JP5299380A patent/JPS56150723A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0216509A (en) * | 1988-07-05 | 1990-01-19 | Furukawa Electric Co Ltd:The | Optical multiplexer demultiplexer |
US7245837B2 (en) | 2002-08-15 | 2007-07-17 | Fujitsu Limited | Optical transmitting device |
Also Published As
Publication number | Publication date |
---|---|
JPS6329725B2 (en) | 1988-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3176220D1 (en) | Fibre-optical measuring equipment | |
US4867520A (en) | Optical fiber multiplexer | |
US4294508A (en) | Optical multiplexer/demultiplexer | |
JPS56137307A (en) | Optical branching filter | |
EP0184270A3 (en) | Fiber coupler displacement transducer | |
JPS56150723A (en) | Optical fiber frequency discriminator | |
JPS5629174A (en) | Electric current measuring device | |
US4726684A (en) | Measurement apparatus for optical transmission factor | |
JPS57168126A (en) | Device for detecting physical change | |
JPS5714729A (en) | Temperature measuring device | |
JPS5488136A (en) | Optical branching filter for optical fibers | |
JPS55163424A (en) | Temperature detector | |
JPS59195220A (en) | Optical detector | |
JPS57171314A (en) | Optical branching and coupling circuit | |
JPS577514A (en) | Optical measuring device | |
SU505984A1 (en) | Device for measuring changes in the phase difference of light oscillations | |
JPS55163436A (en) | Optical detector | |
JPS5724921A (en) | Demodulating method for optical phase modulation signal | |
JPS57198425A (en) | Optical branching and coupling circuit | |
SU1109870A1 (en) | Microwave balanced phase discriminator | |
JPS56137303A (en) | Optical branching filter | |
JPS6442610A (en) | Multi-cored optical parts and production thereof | |
JPS5696234A (en) | Refractometer | |
JPS5632105A (en) | Photo circuit element | |
JPS63222232A (en) | Wavelength sensor |