JPS56114903A - Adjusting method for coupling degree of photocoupler - Google Patents

Adjusting method for coupling degree of photocoupler

Info

Publication number
JPS56114903A
JPS56114903A JP1788480A JP1788480A JPS56114903A JP S56114903 A JPS56114903 A JP S56114903A JP 1788480 A JP1788480 A JP 1788480A JP 1788480 A JP1788480 A JP 1788480A JP S56114903 A JPS56114903 A JP S56114903A
Authority
JP
Japan
Prior art keywords
groove
coupling
adjustment
photocoupler
coupling degree
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
JP1788480A
Other languages
Japanese (ja)
Inventor
Taiji Murakami
Hidefumi Mori
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 JP1788480A priority Critical patent/JPS56114903A/en
Publication of JPS56114903A publication Critical patent/JPS56114903A/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
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
    • G02B6/2826—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals using mechanical machining means for shaping of the couplers, e.g. grinding or polishing
    • G02B6/283—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals using mechanical machining means for shaping of the couplers, e.g. grinding or polishing couplers being tunable or adjustable
    • 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
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
    • G02B6/2835—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals formed or shaped by thermal treatment, e.g. couplers

Abstract

PURPOSE:To lessen an increase in loss due to an adjustment of the coupling degree of a photocoupler by enabling the adjustment over monitoring by forming a groove at the upper part of the coupler and then by adjusting the coupling state by partially fusing the worked surface. CONSTITUTION:In substrate 1, two light directing paths 2 and 2' are formed and those light directing paths are provided partially with parallel parts 2A and 2A' of length L. Over the gap between those coupling parts 2A and 2A', groove 3 is formed to length L-L1. Light is caused to strike those directing paths 2 and 2' and while output power is monitored, the substrate surface is fused from one end of groove 3 to the other end by arc discharge over the groove to fill the groove. Consequently, while the coupling state is monitored, the coupling degree can be adjusted and an increase in loss due to the adjustment can be lessened.
JP1788480A 1980-02-18 1980-02-18 Adjusting method for coupling degree of photocoupler Pending JPS56114903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1788480A JPS56114903A (en) 1980-02-18 1980-02-18 Adjusting method for coupling degree of photocoupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1788480A JPS56114903A (en) 1980-02-18 1980-02-18 Adjusting method for coupling degree of photocoupler

Publications (1)

Publication Number Publication Date
JPS56114903A true JPS56114903A (en) 1981-09-09

Family

ID=11956124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1788480A Pending JPS56114903A (en) 1980-02-18 1980-02-18 Adjusting method for coupling degree of photocoupler

Country Status (1)

Country Link
JP (1) JPS56114903A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124523A1 (en) * 1982-11-12 1984-11-14 Univ Leland Stanford Junior Fiber optic switch and discretely variable delay line.
US4730888A (en) * 1986-02-20 1988-03-15 American Telephone And Telegraph Company, At&T Bell Laboratories Optimized guided wave communication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124523A1 (en) * 1982-11-12 1984-11-14 Univ Leland Stanford Junior Fiber optic switch and discretely variable delay line.
US4723827A (en) * 1982-11-12 1988-02-09 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic switch and discretely variable delay line
US4730888A (en) * 1986-02-20 1988-03-15 American Telephone And Telegraph Company, At&T Bell Laboratories Optimized guided wave communication system

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