Title:
EXTERNAL RESONATOR-TYPE SEMICONDUCTOR LASER DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/031475
Kind Code:
A1
Abstract:
An external resonator-type semiconductor laser device 1A is provided with: an external resonator 5 configured from one or a plurality of laser diode light sources 2 and a volume Bragg grating (VBG) 6; an optical fiber 7 from which output light La from the laser diode light source 2 is output toward the VBG 6, and into which return light Lb from the VBG 6 is input; and a displacement unit 8 which causes the position at which the VBG 6 is disposed to be displaced with respect to an input/output end face 9 of the optical fiber 7.
Inventors:
ZHENG YUJIN (JP)
SEKINE TAKASHI (JP)
KATO YOSHINORI (JP)
KURITA NORIO (JP)
KAWASHIMA TOSHIYUKI (JP)
SEKINE TAKASHI (JP)
KATO YOSHINORI (JP)
KURITA NORIO (JP)
KAWASHIMA TOSHIYUKI (JP)
Application Number:
PCT/JP2019/021831
Publication Date:
February 13, 2020
Filing Date:
May 31, 2019
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
H01S5/14; H01S5/0239
Foreign References:
| US20050265416A1 | 2005-12-01 | |||
| JP2014063933A | 2014-04-10 | |||
| JP2003318480A | 2003-11-07 | |||
| JP2008060120A | 2008-03-13 | |||
| CN101859974A | 2010-10-13 | |||
| US7212554B2 | 2007-05-01 | |||
| JP2007527616A | 2007-09-27 |
Other References:
See also references of EP 3836321A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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