JPS5762022A - Optical modulation system - Google Patents

Optical modulation system

Info

Publication number
JPS5762022A
JPS5762022A JP13670880A JP13670880A JPS5762022A JP S5762022 A JPS5762022 A JP S5762022A JP 13670880 A JP13670880 A JP 13670880A JP 13670880 A JP13670880 A JP 13670880A JP S5762022 A JPS5762022 A JP S5762022A
Authority
JP
Japan
Prior art keywords
optical fiber
modulation
optical
output
lead
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
JP13670880A
Other languages
Japanese (ja)
Inventor
Motohiro Nakahara
Nobuo Inagaki
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 JP13670880A priority Critical patent/JPS5762022A/en
Publication of JPS5762022A publication Critical patent/JPS5762022A/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
    • G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To facilitate modulation by varying an optical output by applying pressure directly to an optical fiber. CONSTITUTION:To a lead-in optical fiber 6, an optical fiber 7 for modulation having a 0.5% refractive indes difference ratio of a core and a cladding part is connected and to its output side, an optical fiber 5 for optical signal transmission is connected. Light S0 having constant intensity is made incident ot the lead-in fiber 6 from a semiconductor laser 3 and the optical fiber 7 for modulation is applied with the pressure of piezoelectric elements 8 and 9 applied with the output of a modulator 2. With slight pressure, the light leaks out of the optical fiber 7. Thus, modulation is facilitated.
JP13670880A 1980-10-02 1980-10-02 Optical modulation system Pending JPS5762022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13670880A JPS5762022A (en) 1980-10-02 1980-10-02 Optical modulation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13670880A JPS5762022A (en) 1980-10-02 1980-10-02 Optical modulation system

Publications (1)

Publication Number Publication Date
JPS5762022A true JPS5762022A (en) 1982-04-14

Family

ID=15181622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13670880A Pending JPS5762022A (en) 1980-10-02 1980-10-02 Optical modulation system

Country Status (1)

Country Link
JP (1) JPS5762022A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6113827U (en) * 1984-06-29 1986-01-27 日本電気株式会社 Fiber optic polarization rotation device
JPS62226064A (en) * 1986-03-17 1987-10-05 テクトロニツクス・インコ−ポレイテツド Trigger device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930461A (en) * 1972-07-20 1974-03-18
JPS5691214A (en) * 1979-12-25 1981-07-24 Nec Corp Method of modulating light phase of fiber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930461A (en) * 1972-07-20 1974-03-18
JPS5691214A (en) * 1979-12-25 1981-07-24 Nec Corp Method of modulating light phase of fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6113827U (en) * 1984-06-29 1986-01-27 日本電気株式会社 Fiber optic polarization rotation device
JPS62226064A (en) * 1986-03-17 1987-10-05 テクトロニツクス・インコ−ポレイテツド Trigger device

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