JPS57114101A - Graded lens plus combined lens using said lens and optical transmission line - Google Patents

Graded lens plus combined lens using said lens and optical transmission line

Info

Publication number
JPS57114101A
JPS57114101A JP55188650A JP18865080A JPS57114101A JP S57114101 A JPS57114101 A JP S57114101A JP 55188650 A JP55188650 A JP 55188650A JP 18865080 A JP18865080 A JP 18865080A JP S57114101 A JPS57114101 A JP S57114101A
Authority
JP
Japan
Prior art keywords
lens
refractive index
graded
transmission line
optical transmission
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
JP55188650A
Other languages
Japanese (ja)
Inventor
Kenichi Yoshida
Kozo Ono
Yoshikazu Nishiwaki
Koichi Tsuno
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP55188650A priority Critical patent/JPS57114101A/en
Publication of JPS57114101A publication Critical patent/JPS57114101A/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
    • G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
    • G02B6/4203—Optical features

Abstract

PURPOSE:To increase the efficiency of combination to an optical fiber, by reducing evenly the refractive index in the optical axis direction from an end toward the other end for a graded lens having the refractive index lowering from the center toward the outer circumference. CONSTITUTION:The refractive index in the optical axis direction is evenly reduced from an end toward the other end for a graded lens 1 which has the refractive index lowering from the center toward the outer circumference. The end face of an optical fiber 2 is adhered to an end face having a low refractive index. A beam 4 which is made incident from an end face 2 of the lens 1 with an incident angle theta2 has its amplitude being gradually reduced to be made incident to a core 5 of the fiber 2 with an incident angle theta1 smaller than the angle theta2. Thus the efficiency of combination is increased between a graded lens and an optical fiber.
JP55188650A 1980-12-30 1980-12-30 Graded lens plus combined lens using said lens and optical transmission line Pending JPS57114101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55188650A JPS57114101A (en) 1980-12-30 1980-12-30 Graded lens plus combined lens using said lens and optical transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55188650A JPS57114101A (en) 1980-12-30 1980-12-30 Graded lens plus combined lens using said lens and optical transmission line

Publications (1)

Publication Number Publication Date
JPS57114101A true JPS57114101A (en) 1982-07-15

Family

ID=16227430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55188650A Pending JPS57114101A (en) 1980-12-30 1980-12-30 Graded lens plus combined lens using said lens and optical transmission line

Country Status (1)

Country Link
JP (1) JPS57114101A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173516A (en) * 1984-02-20 1985-09-06 Nippon Sheet Glass Co Ltd Optical system for coupling light source
WO2006025152A1 (en) * 2004-08-31 2006-03-09 Sumitomo Electric Industries, Ltd. Dlc film and method for forming the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233545A (en) * 1975-09-09 1977-03-14 Nippon Telegr & Teleph Corp <Ntt> Light coupler
JPS5543538A (en) * 1978-09-20 1980-03-27 Matsushita Electric Ind Co Ltd Production of photo coupler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233545A (en) * 1975-09-09 1977-03-14 Nippon Telegr & Teleph Corp <Ntt> Light coupler
JPS5543538A (en) * 1978-09-20 1980-03-27 Matsushita Electric Ind Co Ltd Production of photo coupler

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173516A (en) * 1984-02-20 1985-09-06 Nippon Sheet Glass Co Ltd Optical system for coupling light source
JPH055081B2 (en) * 1984-02-20 1993-01-21 Nippon Sheet Glass Co Ltd
WO2006025152A1 (en) * 2004-08-31 2006-03-09 Sumitomo Electric Industries, Ltd. Dlc film and method for forming the same
JP2006071787A (en) * 2004-08-31 2006-03-16 Sumitomo Electric Ind Ltd Dlc membrane and its forming method
US7466491B2 (en) 2004-08-31 2008-12-16 Sumitomo Electric Industries, Ltd. DLC film and method for forming the same

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