JPS57169289A - Optical fiber laser light input device - Google Patents

Optical fiber laser light input device

Info

Publication number
JPS57169289A
JPS57169289A JP5426481A JP5426481A JPS57169289A JP S57169289 A JPS57169289 A JP S57169289A JP 5426481 A JP5426481 A JP 5426481A JP 5426481 A JP5426481 A JP 5426481A JP S57169289 A JPS57169289 A JP S57169289A
Authority
JP
Japan
Prior art keywords
port
light
output light
optical fiber
fluctuation
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
JP5426481A
Other languages
Japanese (ja)
Inventor
Yukio Morishige
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5426481A priority Critical patent/JPS57169289A/en
Publication of JPS57169289A publication Critical patent/JPS57169289A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/4206—Optical features

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To reduce the fluctuation of output light for high coupling by a method wherein a photocoupling separation means is provided between the lens system focusing the output light from a laser oscillator and the fiber for measured light, and the output light from an auxiliary laser light source is introduced into the laser oscillator. CONSTITUTION:The output light 10 from the pulse laser oscillator 1 is focused in the lens system 2 to reach a port 5. An interface part 4 having a directivity coupler 9 between the port 5 and fiber for measured light 12 is provided to lead to the port 7 the photopulse inciding from the port 5. The injected light from the auxiliary laser light source 3 is led to the port 5 via the directivity coupler 9 to excite the light focused-inciding into the auxiliary optical fiber 8 at the port 5 for the reduction of the fluctuation of output light. Thus, the fluctuation in a radiating direction can be reduced to enhance the coupling efficiency for stabilization.
JP5426481A 1981-04-13 1981-04-13 Optical fiber laser light input device Pending JPS57169289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5426481A JPS57169289A (en) 1981-04-13 1981-04-13 Optical fiber laser light input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5426481A JPS57169289A (en) 1981-04-13 1981-04-13 Optical fiber laser light input device

Publications (1)

Publication Number Publication Date
JPS57169289A true JPS57169289A (en) 1982-10-18

Family

ID=12965702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5426481A Pending JPS57169289A (en) 1981-04-13 1981-04-13 Optical fiber laser light input device

Country Status (1)

Country Link
JP (1) JPS57169289A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082343A (en) * 1990-12-20 1992-01-21 At&T Bell Laboratories Isolated optical coupler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082343A (en) * 1990-12-20 1992-01-21 At&T Bell Laboratories Isolated optical coupler

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