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.
More Like This:
Inventors:
AWANE YUSUKE (JP)
NISHIMURA KATSUMI (JP)
SHIBUYA KYOJI (JP)
NISHIMURA KATSUMI (JP)
SHIBUYA KYOJI (JP)
Application Number:
PCT/JP2018/034924
Publication Date:
June 20, 2019
Filing Date:
September 20, 2018
Export Citation:
Assignee:
HORIBA LTD (JP)
International Classes:
H01S5/0687; G01N21/3504; H01S5/024
Foreign References:
| JP2017101950A | 2017-06-08 | |||
| JPH11233869A | 1999-08-27 | |||
| JP2011108930A | 2011-06-02 | |||
| JP2014078690A | 2014-05-01 | |||
| JPH0379094A | 1991-04-04 | |||
| JPH07273393A | 1995-10-20 | |||
| JP2005085815A | 2005-03-31 | |||
| JP2013164315A | 2013-08-22 | |||
| JP2014225583A | 2014-12-04 | |||
| US20120033697A1 | 2012-02-09 | |||
| US20160329681A1 | 2016-11-10 | |||
| JP2009216385A | 2009-09-24 |
Other References:
See also references of EP 3726675A4
Attorney, Agent or Firm:
NISHIMURA, Ryuhei (JP)
Download PDF: