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JPS51144656A - Photo-fiber device - Google Patents

Photo-fiber device

Info

Publication number
JPS51144656A
JPS51144656A JP6835075A JP6835075A JPS51144656A JP S51144656 A JPS51144656 A JP S51144656A JP 6835075 A JP6835075 A JP 6835075A JP 6835075 A JP6835075 A JP 6835075A JP S51144656 A JPS51144656 A JP S51144656A
Authority
JP
Japan
Prior art keywords
photo
fiber device
signal
branch
loss
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
Application number
JP6835075A
Other languages
Japanese (ja)
Other versions
JPS5856989B2 (en
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 JP6835075A priority Critical patent/JPS5856989B2/en
Publication of JPS51144656A publication Critical patent/JPS51144656A/en
Publication of JPS5856989B2 publication Critical patent/JPS5856989B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
    • 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
    • G02B6/4212—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element being a coupling medium interposed therebetween, e.g. epoxy resin, refractive index matching material, index grease, matching liquid or gel

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Semiconductor Lasers (AREA)

Abstract

PURPOSE:A distributed feedback-type semiconductor amplification element with double hetero-junction structure is operated under the oscillation working level, reducing the branch of photo-signal and the loss of photo-signal when inserting.
JP6835075A 1975-06-06 1975-06-06 Optical branching device Expired JPS5856989B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6835075A JPS5856989B2 (en) 1975-06-06 1975-06-06 Optical branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6835075A JPS5856989B2 (en) 1975-06-06 1975-06-06 Optical branching device

Publications (2)

Publication Number Publication Date
JPS51144656A true JPS51144656A (en) 1976-12-11
JPS5856989B2 JPS5856989B2 (en) 1983-12-17

Family

ID=13371280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6835075A Expired JPS5856989B2 (en) 1975-06-06 1975-06-06 Optical branching device

Country Status (1)

Country Link
JP (1) JPS5856989B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54162988A (en) * 1978-06-09 1979-12-25 Thomson Csf Laser
JPS5542393U (en) * 1978-09-14 1980-03-18
JPS55171962U (en) * 1979-05-29 1980-12-10
JPS57170582A (en) * 1981-04-15 1982-10-20 Nec Corp Semiconductor laser
JPH01291207A (en) * 1988-05-18 1989-11-22 Furukawa Electric Co Ltd:The Juncture of different optical lines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54162988A (en) * 1978-06-09 1979-12-25 Thomson Csf Laser
JPS5542393U (en) * 1978-09-14 1980-03-18
JPS55171962U (en) * 1979-05-29 1980-12-10
JPS57170582A (en) * 1981-04-15 1982-10-20 Nec Corp Semiconductor laser
JPH0365029B2 (en) * 1981-04-15 1991-10-09
JPH01291207A (en) * 1988-05-18 1989-11-22 Furukawa Electric Co Ltd:The Juncture of different optical lines

Also Published As

Publication number Publication date
JPS5856989B2 (en) 1983-12-17

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