JPS54128360A - Optical fiber transmission device - Google Patents
Optical fiber transmission deviceInfo
- Publication number
- JPS54128360A JPS54128360A JP3585578A JP3585578A JPS54128360A JP S54128360 A JPS54128360 A JP S54128360A JP 3585578 A JP3585578 A JP 3585578A JP 3585578 A JP3585578 A JP 3585578A JP S54128360 A JPS54128360 A JP S54128360A
- Authority
- JP
- Japan
- Prior art keywords
- light
- thin film
- attenuating plate
- signal
- optical fiber
- 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.)
- Pending
Links
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Optical Communication System (AREA)
Abstract
PURPOSE: To solve the problem of S/N deterioration owing to transmit analog data through direct modulation of light signal by providing a gap in the optical reansmission line, inserting a thin film attenuating plate therein and transmitting the light having been intensity modulated according to the movement of the thin film attenuating plate.
CONSTITUTION: The light signal emitted from a light source 1 is led to a thin film attenuating plate 5 by an optical fiber 2. The thin film attenuating plate 5 when moved in the fixed direction is capable of monotonusly attenuating the light signal continuously. The light signal having passed through the thin film attenuating plate 5 and having undergone intensity modulation according to the movement of the thin film attenuating plate 5 is further transmitted to a remote place by the optical fiber 2 and is inputted to a light-electricity converter 3. The light-electricity converter 3 faithfully converts the light intensity signal to an electric signal and outputs the same to a signal line 4.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3585578A JPS54128360A (en) | 1978-03-27 | 1978-03-27 | Optical fiber transmission device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3585578A JPS54128360A (en) | 1978-03-27 | 1978-03-27 | Optical fiber transmission device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54128360A true JPS54128360A (en) | 1979-10-04 |
Family
ID=12453595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3585578A Pending JPS54128360A (en) | 1978-03-27 | 1978-03-27 | Optical fiber transmission device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54128360A (en) |
-
1978
- 1978-03-27 JP JP3585578A patent/JPS54128360A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2037351A1 (en) | Optical transmitter | |
SE8207500L (en) | DIGITAL OPTICAL TRANSMISSION SYSTEM LOCALIZATION DEVICE | |
ES8705978A1 (en) | Fiber optic network with reduced coupling losses. | |
SE9501887D0 (en) | Method and apparatus for transmitting signals in an optical fiber | |
GB2219166A (en) | Fibre optic communication system for use in hazardous environments | |
EP0477875A3 (en) | Optical communication system and transmitting apparatus for use therein | |
JPS53123157A (en) | Lumped transmitter for optical energy | |
DE3161894D1 (en) | Device for separating two light signals emitted by two sources of different wavelengths and transmitted by the same optical fibre, and receiver comprising such a device | |
AU538899B2 (en) | Optical coupler for transmission and reception over optical fibre | |
JPS54128360A (en) | Optical fiber transmission device | |
ATE124188T1 (en) | OPTICAL TRANSMISSION SYSTEM. | |
EP0469382A3 (en) | Transmission apparatus for transmitting messages and additional signals | |
JPS5631242A (en) | Remote power supply optical communication unit | |
JPS56164307A (en) | Optical modulator | |
JPS57127342A (en) | Branchable multiplex loop transmitter | |
JPS54118105A (en) | Secondary signal insertion system | |
JPS5450203A (en) | Transmitter for optical fiber communication | |
JPS56103552A (en) | Transmitting system of monitor signal | |
JPS5668040A (en) | Transmission system for light energy and light signal | |
JPS55166353A (en) | Optical fiber transmission system | |
FR2441309A1 (en) | Wideband, high speed optical signal switching system - uses matrix controlled by secondary light emitters and receivers | |
FR2445678A1 (en) | Wideband, high speed optical signal switching system - uses matrix controlled by secondary light emitters and receivers | |
JPS52101A (en) | System for transmitting acoustic sigal | |
JPS53138663A (en) | Optical transmitter | |
JPS6439134A (en) | Optical transmission equipment |