JPS54116951A - Optical delay circuit - Google Patents
Optical delay circuitInfo
- Publication number
- JPS54116951A JPS54116951A JP2410078A JP2410078A JPS54116951A JP S54116951 A JPS54116951 A JP S54116951A JP 2410078 A JP2410078 A JP 2410078A JP 2410078 A JP2410078 A JP 2410078A JP S54116951 A JPS54116951 A JP S54116951A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- fiber
- signals
- closed loop
- delaying
- 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
Landscapes
- Optical Communication System (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
PURPOSE: To make it possible to confine delaying optical fiber signals for a desired time in response to the control signals of delay means thereby to effect the desired delay by using a single delaying optical fiber which is connected to the group of input and output terminals while forming a closed loop.
CONSTITUTION: In order to effect delay in optical pulses, optical signal input fiber 4 is excited, and a drive circuit 2 is operated in response to the timing signals from the outside so that the optical input signals are guided into a delaying low loss optical fiber 3 of closed loop shape. If, under this condition, a direction changing switch circuit 1 is changed to a parallel mode, the optical pulse trains taken into the optical fiber 3 turns on and on within the closed loop so that they are maintained for a long time. After a desired period has passed, the switch circuit 1 is changed to an interchange mode. The pulse signals temporarily stored in the fiber 3 are guided out through an optical signal output fiber 5.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2410078A JPS54116951A (en) | 1978-03-02 | 1978-03-02 | Optical delay circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2410078A JPS54116951A (en) | 1978-03-02 | 1978-03-02 | Optical delay circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54116951A true JPS54116951A (en) | 1979-09-11 |
JPS6143690B2 JPS6143690B2 (en) | 1986-09-29 |
Family
ID=12128938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2410078A Granted JPS54116951A (en) | 1978-03-02 | 1978-03-02 | Optical delay circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54116951A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4676583A (en) * | 1984-06-28 | 1987-06-30 | Polaroid Corporation | Adscititious resonator |
JP2001183531A (en) * | 1999-12-24 | 2001-07-06 | Fujikura Ltd | Polarization holding light signal delay circuit |
JP2006157202A (en) * | 2004-11-26 | 2006-06-15 | Yokogawa Electric Corp | Address discrimination circuit and optical communication system |
JP2010060495A (en) * | 2008-09-05 | 2010-03-18 | Anritsu Corp | Device for testing optical fiber |
-
1978
- 1978-03-02 JP JP2410078A patent/JPS54116951A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4676583A (en) * | 1984-06-28 | 1987-06-30 | Polaroid Corporation | Adscititious resonator |
JP2001183531A (en) * | 1999-12-24 | 2001-07-06 | Fujikura Ltd | Polarization holding light signal delay circuit |
JP2006157202A (en) * | 2004-11-26 | 2006-06-15 | Yokogawa Electric Corp | Address discrimination circuit and optical communication system |
JP4492314B2 (en) * | 2004-11-26 | 2010-06-30 | 横河電機株式会社 | Address determination circuit and optical communication system |
JP2010060495A (en) * | 2008-09-05 | 2010-03-18 | Anritsu Corp | Device for testing optical fiber |
Also Published As
Publication number | Publication date |
---|---|
JPS6143690B2 (en) | 1986-09-29 |
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