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JPS55118010A - Semiconductor laser coupler - Google Patents

Semiconductor laser coupler

Info

Publication number
JPS55118010A
JPS55118010A JP2530779A JP2530779A JPS55118010A JP S55118010 A JPS55118010 A JP S55118010A JP 2530779 A JP2530779 A JP 2530779A JP 2530779 A JP2530779 A JP 2530779A JP S55118010 A JPS55118010 A JP S55118010A
Authority
JP
Japan
Prior art keywords
reflection
laser
reflected light
fiber
light
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
JP2530779A
Other languages
Japanese (ja)
Other versions
JPS6315564B2 (en
Inventor
Yoshihiro Matsumoto
Yoshiki Higo
Shigeaki Saito
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 JP2530779A priority Critical patent/JPS55118010A/en
Publication of JPS55118010A publication Critical patent/JPS55118010A/en
Publication of JPS6315564B2 publication Critical patent/JPS6315564B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Couplings Of Light Guides (AREA)
  • Semiconductor Lasers (AREA)

Abstract

PURPOSE: To prevent the production of reflected light from coupling part which gives adverse influence upon laser oscillator by providing an antireflection glass plate, reflection-inhibiting plate, etc. to the incident end of the optical fiber of single mode.
CONSTITUTION: Laser light from a laser diode 11 is condensed at one point of the incident face of a single mode type optical fiber 34 by a rod lens 14. In this case, the laser light enters a fiber 34 of a minute diameter through the lens 14 which is coated with a non-reflecting film at its both ends, the reflection-inhibiting plate 31 of non-reflection material provided with light-pass hole and the antireflection glass plate 32 which is bonded and fixed by the optical matching material of the same refractive index as that of the fiber 34 by which the production of reflected light is obviated and the unstability of the laser oscillator, etc. that may be caused by the reflected light is prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP2530779A 1979-03-05 1979-03-05 Semiconductor laser coupler Granted JPS55118010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2530779A JPS55118010A (en) 1979-03-05 1979-03-05 Semiconductor laser coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2530779A JPS55118010A (en) 1979-03-05 1979-03-05 Semiconductor laser coupler

Publications (2)

Publication Number Publication Date
JPS55118010A true JPS55118010A (en) 1980-09-10
JPS6315564B2 JPS6315564B2 (en) 1988-04-05

Family

ID=12162347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2530779A Granted JPS55118010A (en) 1979-03-05 1979-03-05 Semiconductor laser coupler

Country Status (1)

Country Link
JP (1) JPS55118010A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58183156A (en) * 1982-04-20 1983-10-26 株式会社東芝 Laser apparatus for treatment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5515184A (en) * 1978-07-19 1980-02-02 Nec Corp Photo coupler

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5515184A (en) * 1978-07-19 1980-02-02 Nec Corp Photo coupler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58183156A (en) * 1982-04-20 1983-10-26 株式会社東芝 Laser apparatus for treatment
JPH0336536B2 (en) * 1982-04-20 1991-05-31 Tokyo Shibaura Electric Co

Also Published As

Publication number Publication date
JPS6315564B2 (en) 1988-04-05

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