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Title:
EXTERNAL-RESONATOR-TYPE LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/087914
Kind Code:
A1
Abstract:
An external-resonator-type light-emitting device (1) provided with: a semiconductor laser light source (2) that has an active layer (5) that oscillates semiconductor laser light; a grating element (9) that has a ridge-type optical waveguide and a Bragg grating (12) that comprises irregularities formed on the inside of the ridge-type optical waveguide, which has an incidence surface where semiconductor laser light enters and an emission surface that emits outgoing light of a desired wavelength; and a temperature sensor (21) that measures the temperature of the light-emitting device. The drive current of the semiconductor laser light source is controlled in accordance with the temperature measured by the temperature sensor (21).

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Inventors:
KONDO JUNGO (JP)
EJIRI TETSUYA (JP)
YAMAGUCHI SHOICHIRO (JP)
Application Number:
PCT/JP2014/082687
Publication Date:
June 18, 2015
Filing Date:
December 10, 2014
Export Citation:
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Assignee:
NGK INSULATORS LTD (JP)
International Classes:
H01S5/14; H01S5/068
Foreign References:
JP2010171252A2010-08-05
JPS63136585A1988-06-08
JP2003168844A2003-06-13
Attorney, Agent or Firm:
HOSODA Masutoshi et al. (JP)
Masunori Hosoda (JP)
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