JPS52155901A - Transmission system for optical fiber - Google Patents

Transmission system for optical fiber

Info

Publication number
JPS52155901A
JPS52155901A JP7296776A JP7296776A JPS52155901A JP S52155901 A JPS52155901 A JP S52155901A JP 7296776 A JP7296776 A JP 7296776A JP 7296776 A JP7296776 A JP 7296776A JP S52155901 A JPS52155901 A JP S52155901A
Authority
JP
Japan
Prior art keywords
optical fiber
transmission system
economy
reliability
improve
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
JP7296776A
Other languages
Japanese (ja)
Inventor
Tatsuya Kimura
Kazuhiro Oguro
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7296776A priority Critical patent/JPS52155901A/en
Publication of JPS52155901A publication Critical patent/JPS52155901A/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
    • H04B10/29—Repeaters
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
    • G02B6/4208—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback using non-reciprocal elements or birefringent plates, i.e. quasi-isolators
    • G02B6/4209—Optical features
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • H01S3/0064—Anti-reflection devices, e.g. optical isolaters
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H04B10/2914—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing using lumped semiconductor optical amplifiers [SOA]

Abstract

PURPOSE:To improve the economy and reliability of the transmission system, by using the optical fiber having low dispersion and less pulse width extension and the stable photo amplifier.
JP7296776A 1976-06-21 1976-06-21 Transmission system for optical fiber Pending JPS52155901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7296776A JPS52155901A (en) 1976-06-21 1976-06-21 Transmission system for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7296776A JPS52155901A (en) 1976-06-21 1976-06-21 Transmission system for optical fiber

Publications (1)

Publication Number Publication Date
JPS52155901A true JPS52155901A (en) 1977-12-24

Family

ID=13504653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7296776A Pending JPS52155901A (en) 1976-06-21 1976-06-21 Transmission system for optical fiber

Country Status (1)

Country Link
JP (1) JPS52155901A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157233A (en) * 1982-02-25 1983-09-19 ウエスターン　エレクトリック　カムパニー　インコーポレーテッド Optical fiber remote communication device
JPS63219186A (en) * 1987-03-09 1988-09-12 Nippon Telegr & Teleph Corp <Ntt> Semiconductor laser module with built-in optical isolator
JPS6417526A (en) * 1987-07-13 1989-01-20 Nec Corp Optical communication equipment
JPH01292917A (en) * 1988-05-20 1989-11-27 Oki Electric Ind Co Ltd Photodetecting module
EP0351133A2 (en) * 1988-07-15 1990-01-17 AT&T Corp. Polarization insensitive optical communication device utilizing optical preamplification
US5210808A (en) * 1989-07-17 1993-05-11 Pirelli Cavi S.P.A. Unit for amplifying light signals in optical fiber transmission lines
LT3573B (en) 1989-07-17 1995-12-27 Pirelli Cavi Spa Unit for amplifying light signals in optical fiber transmission line
US5521737A (en) * 1989-08-31 1996-05-28 Fujitsu Limited Optical amplifier and optical communication system with optical amplifier using pumping light beam

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157233A (en) * 1982-02-25 1983-09-19 ウエスターン　エレクトリック　カムパニー　インコーポレーテッド Optical fiber remote communication device
JPH045296B2 (en) * 1982-02-25 1992-01-31
JPS63219186A (en) * 1987-03-09 1988-09-12 Nippon Telegr & Teleph Corp <Ntt> Semiconductor laser module with built-in optical isolator
JPS6417526A (en) * 1987-07-13 1989-01-20 Nec Corp Optical communication equipment
JPH01292917A (en) * 1988-05-20 1989-11-27 Oki Electric Ind Co Ltd Photodetecting module
EP0351133A2 (en) * 1988-07-15 1990-01-17 AT&T Corp. Polarization insensitive optical communication device utilizing optical preamplification
US5210808A (en) * 1989-07-17 1993-05-11 Pirelli Cavi S.P.A. Unit for amplifying light signals in optical fiber transmission lines
LT3573B (en) 1989-07-17 1995-12-27 Pirelli Cavi Spa Unit for amplifying light signals in optical fiber transmission line
US5521737A (en) * 1989-08-31 1996-05-28 Fujitsu Limited Optical amplifier and optical communication system with optical amplifier using pumping light beam

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