US 9,812,841 B2
Lasersystem
Takashi Onose, Tochigi (JP); Kouji Kakizaki, Tochigi (JP); and Osamu Wakabayashi, Tochigi (JP)
Assigned to Gigaphoton Inc., Tochigi (JP)
Filed by GIGAPHOTON INC., Tochigi (JP)
Filed on Aug. 3, 2016, as Appl. No. 15/227,028.
Application 15/227,028 is a continuation of application No. PCT/JP2014/057131, filed on Mar. 17, 2014.
Prior Publication US 2016/0344158 A1, Nov. 24, 2016
Int. Cl. H01S 3/23 (2006.01); H01S 3/225 (2006.01); H01S 3/30 (2006.01); H01S 3/00 (2006.01); H01S 3/10 (2006.01); H05G 2/00 (2006.01); H01S 3/13 (2006.01)
CPC H01S 3/2391 (2013.01) [H01S 3/0092 (2013.01); H01S 3/10015 (2013.01); H01S 3/2251 (2013.01); H01S 3/30 (2013.01); H01S 3/305 (2013.01); H05G 2/00 (2013.01); H01S 3/1301 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A laser system, comprising:
a Raman cell;
a pumping light generator including one optical parametric amplifier (OPA), a first OPA laser device, and a second OPA laser device, and configured to output first Raman-cell pumping light and second Raman-cell pumping light to the Raman cell, the first OPA laser device being configured to output OPA pumping light to the OPA, the second OPA laser device being configured to output OPA signal light to the OPA;
a Raman cell laser unit configured to output probing light as a target of wavelength conversion to the Raman cell;
a pumping light monitor section configured to measure a state of the OPA pumping light;
a signal light monitor section configured to measure a state of the OPA signal light; and
a timing controller configured to control the first OPA laser device and the second OPA laser device to allow both the OPA pumping light and the OPA signal light to be inputted to the OPA substantially simultaneously, based on measurement results by the pumping light monitor section and the signal light monitor section.