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Patent Searching and Data


Title:
SEMICONDUCTOR LASER DEVICE, AND METHOD AND PROGRAM FOR DRIVING SEMICONDUCTOR LASER DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/116660
Kind Code:
A1
Abstract:
The present invention suppresses fluctuation of the oscillation wave number of a semiconductor laser element due to being affected by ambient temperature. The present invention is provided with: a semiconductor laser element 2; a temperature adjustment section 32 that adjusts the temperature of the semiconductor laser element 2; a temperature sensor 4 that detects the temperature of the temperature adjustment section 32; and a temperature control device 5 that controls a supply signal to the temperature adjustment section 32 so that the detection temperature of the temperature sensor 4 is a predetermined target temperature. The temperature control device 5 changes the target temperature of the temperature adjustment section 32 corresponding to the supply signal to the temperature adjustment section 32.

Inventors:
AWANE YUSUKE (JP)
NISHIMURA KATSUMI (JP)
SHIBUYA KYOJI (JP)
Application Number:
PCT/JP2018/034924
Publication Date:
June 20, 2019
Filing Date:
September 20, 2018
Export Citation:
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Assignee:
HORIBA LTD (JP)
International Classes:
H01S5/0687; G01N21/3504; H01S5/024
Foreign References:
JP2017101950A2017-06-08
JPH11233869A1999-08-27
JP2011108930A2011-06-02
JP2014078690A2014-05-01
JPH0379094A1991-04-04
JPH07273393A1995-10-20
JP2005085815A2005-03-31
JP2013164315A2013-08-22
JP2014225583A2014-12-04
US20120033697A12012-02-09
US20160329681A12016-11-10
JP2009216385A2009-09-24
Attorney, Agent or Firm:
NISHIMURA, Ryuhei (JP)
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