JPS5697305A - Grating spectroscope for optical multiple communication - Google Patents

Grating spectroscope for optical multiple communication

Info

Publication number
JPS5697305A
JPS5697305A JP71080A JP71080A JPS5697305A JP S5697305 A JPS5697305 A JP S5697305A JP 71080 A JP71080 A JP 71080A JP 71080 A JP71080 A JP 71080A JP S5697305 A JPS5697305 A JP S5697305A
Authority
JP
Japan
Prior art keywords
light
diffraction grating
diffracted
semiconductor lasers
optical fiber
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
JP71080A
Other languages
Japanese (ja)
Inventor
Takumi Tomijima
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP71080A priority Critical patent/JPS5697305A/en
Publication of JPS5697305A publication Critical patent/JPS5697305A/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
    • G02B6/34—Optical coupling means utilising prism or grating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

PURPOSE:To transmit the oscillated light of multiple wavelengths to an optical fiber by turning back the diffracted light of n-order of the semiconductor lasers placed on the focal plane of a plane diffraction grating by a corner mirror, and feeding the diffracted light of n-order diffracted twice respectively back to the semiconductor lasers. CONSTITUTION:Semiconductor lasers 1(-) arrayed in one row on the focal plane of a diffraction grating 4 are disposed in a manner as to satisfy lambdai=dsinthetai. Here, (d) is the grating constant of the diffraction grating 4, lambdai is the wavelength of the oscillated light of the i-th semiconductor laser, and thetai is the incident angle of said light. Part of the primary diffracted light emits in the normal direction of the diffraction grating 4, is reflected by a corner mirror 5, is diffracted by the diffraction grating 4 and feeds back to the original semiconductor lasers 1, ..., whereby each oscillation wavelength is fixed. Part of the diffracted light of said laser light is sent via a spherical mirror 7 into an optical fiber 8. The same also occurs in a similar laser array parallel to the plane of the figure. Thereby, the light of multiple wavelengths is transmitted to the optical fiber 8.
JP71080A 1980-01-05 1980-01-05 Grating spectroscope for optical multiple communication Pending JPS5697305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP71080A JPS5697305A (en) 1980-01-05 1980-01-05 Grating spectroscope for optical multiple communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP71080A JPS5697305A (en) 1980-01-05 1980-01-05 Grating spectroscope for optical multiple communication

Publications (1)

Publication Number Publication Date
JPS5697305A true JPS5697305A (en) 1981-08-06

Family

ID=11481314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP71080A Pending JPS5697305A (en) 1980-01-05 1980-01-05 Grating spectroscope for optical multiple communication

Country Status (1)

Country Link
JP (1) JPS5697305A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160917A (en) * 1981-12-24 1983-09-24 アンストルマン・ソシエテ・アノニム Selector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160917A (en) * 1981-12-24 1983-09-24 アンストルマン・ソシエテ・アノニム Selector

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