JPS5497441A - Repeating spacing adjusting light circuit of optical communication - Google Patents

Repeating spacing adjusting light circuit of optical communication

Info

Publication number
JPS5497441A
JPS5497441A JP458478A JP458478A JPS5497441A JP S5497441 A JPS5497441 A JP S5497441A JP 458478 A JP458478 A JP 458478A JP 458478 A JP458478 A JP 458478A JP S5497441 A JPS5497441 A JP S5497441A
Authority
JP
Japan
Prior art keywords
light
delay
circuits
light circuit
delay times
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
Application number
JP458478A
Other languages
Japanese (ja)
Inventor
Takeshi Koseki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP458478A priority Critical patent/JPS5497441A/en
Publication of JPS5497441A publication Critical patent/JPS5497441A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2861—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using fibre optic delay lines and optical elements associated with them, e.g. for use in signal processing, e.g. filtering

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To make possible easy coping with different repeating spacings even if they differ and perform transmission of good characteristics by connecting unit circuits assigned with respective delay times in plural stages and constituting the light circuit network of frequency characteristics equal to the transmission characteristics of optical fibers. CONSTITUTION:With each unit light circuit, a light delay element 3 having a specified delay time is connected between one output terminal 2c and input terminal 2b of a photo directional coupler 1 and a light input is applied to the other input terminal 2a and the output is drawn out from the output terminal 2d. As the light delay element 3, e.g., an optical fiber delay line is used. Such unit light circuits 1a, 1b, 1c are connected to the multistage constitution and the delay times are assigned to the respective unit light circuit. Namely, if the delay times of the circuits 1a, 1b, 1c are assumed to be r, r/2, r/2 respectively, the characteristics such as the curve illustrated may be obtained overall and may be approximated to the required frequency characteristics. By changing the number of the unit circuits and the delay times to be assigned here, the degree of the approximation may be additionally improved.
JP458478A 1978-01-19 1978-01-19 Repeating spacing adjusting light circuit of optical communication Pending JPS5497441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP458478A JPS5497441A (en) 1978-01-19 1978-01-19 Repeating spacing adjusting light circuit of optical communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP458478A JPS5497441A (en) 1978-01-19 1978-01-19 Repeating spacing adjusting light circuit of optical communication

Publications (1)

Publication Number Publication Date
JPS5497441A true JPS5497441A (en) 1979-08-01

Family

ID=11588079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP458478A Pending JPS5497441A (en) 1978-01-19 1978-01-19 Repeating spacing adjusting light circuit of optical communication

Country Status (1)

Country Link
JP (1) JPS5497441A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58153914A (en) * 1982-03-08 1983-09-13 Fuji Electric Corp Res & Dev Ltd Optical frequency filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58153914A (en) * 1982-03-08 1983-09-13 Fuji Electric Corp Res & Dev Ltd Optical frequency filter

Similar Documents

Publication Publication Date Title
US4934777A (en) Cascaded recirculating transmission line without bending loss limitations
US11644619B2 (en) Optical splitter chip, optical splitter component, optical splitter apparatus, and optical fiber box
WO1988007313A3 (en) Improvements in electro optical switch architectures
ATE111287T1 (en) COMMUNICATION NETWORK.
ES453352A1 (en) Multiple access fiber optical bus communication system
DE69604122T2 (en) Multi wavelength source
JPS5497441A (en) Repeating spacing adjusting light circuit of optical communication
JPS55103509A (en) Photo coupler
JPS57154955A (en) Optical broadcast communication network
JPS5611432A (en) Light delay device
JPS5756814A (en) Photocoupler
GB2030318A (en) Optical Fibre Couplers
JPS53107259A (en) Compensator for delay of envelope
JPS56128062A (en) Branch and coupling amplifier circuit
Barbarossa et al. Novel double-ring optical-guided-wave Vernier resonator
CA2071934A1 (en) Passive Optical Ring Network
JPS5665542A (en) Transmission circuit of square wave signal with isolation
JPS57186704A (en) Optical switch
GB1268189A (en) Improvements in or relating to radio frequency filters
JPS57106249A (en) Multiple wavelength two-way y type optical transmission system
JPH04223410A (en) Single-mode integrated bidirectional coupler
JPS55143853A (en) Communication network by light wave length division multiplex transmission
JPS6437507A (en) Waveguide type optical interferometer circuit
SU394878A1 (en) DIRECTED TAILOR
JPS6429002A (en) Power distributor for microwave