JPS6481290A - Wavelength-variable semiconductor laser - Google Patents

Wavelength-variable semiconductor laser

Info

Publication number
JPS6481290A
JPS6481290A JP62237983A JP23798387A JPS6481290A JP S6481290 A JPS6481290 A JP S6481290A JP 62237983 A JP62237983 A JP 62237983A JP 23798387 A JP23798387 A JP 23798387A JP S6481290 A JPS6481290 A JP S6481290A
Authority
JP
Japan
Prior art keywords
group
semiconductor laser
superconducting coil
wavelength
periodic table
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
JP62237983A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Tato
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 JP62237983A priority Critical patent/JPS6481290A/en
Publication of JPS6481290A publication Critical patent/JPS6481290A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0607—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Superconductor Devices And Manufacturing Methods Thereof (AREA)
  • Semiconductor Lasers (AREA)

Abstract

PURPOSE:To reduce the generation of heat and to change a wavelength of a laser beam by changing the strength of a magnetic field to be impressed on a semiconductor laser element from a superconducting coil arranged near the semiconductor laser element. CONSTITUTION:A semiconductor laser element 2 and a superconducting coil 1 are fixed to a heat sink 4 to be adjacent to each other. The superconducting coil 1 controls a magnetic field to be impressed on the semiconductor laser element 2 and changes a wavelength of an output laser beam. Accordingly, a problem of the generation of heat is hardly caused. A composite oxide superconductor to be used for the superconducting coil 1 is expressed by Formula (1) (where alpha is a group IIa element in the periodic table, beta is a group IIIa element in the periodic table, gamma is one element selected from a group Ib, a group IIb, a group IIIb, a group IVb and a group VIIIa elements in the periodic table and x, y and z are numbers satisfying the following conditions: 0.1<=x<=0.9, 0.4<=y<=3.0 and 1<=z<=5). This composite oxide is composed mainly of a perovskite oxide or a pseudoperovskite oxide.
JP62237983A 1987-09-22 1987-09-22 Wavelength-variable semiconductor laser Pending JPS6481290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62237983A JPS6481290A (en) 1987-09-22 1987-09-22 Wavelength-variable semiconductor laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62237983A JPS6481290A (en) 1987-09-22 1987-09-22 Wavelength-variable semiconductor laser

Publications (1)

Publication Number Publication Date
JPS6481290A true JPS6481290A (en) 1989-03-27

Family

ID=17023375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62237983A Pending JPS6481290A (en) 1987-09-22 1987-09-22 Wavelength-variable semiconductor laser

Country Status (1)

Country Link
JP (1) JPS6481290A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7308008B2 (en) * 2002-11-08 2007-12-11 Finisar Corporation Magnetically controlled heat sink

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7308008B2 (en) * 2002-11-08 2007-12-11 Finisar Corporation Magnetically controlled heat sink

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