Photoacoustic gas detector
S Nicoletti, P Andreucci, M Brun, S Gidon… - US Patent …, 2013 - Google Patents
(57) ABSTRACT A photoacoustic detection device including a nanophotonic circuit including
a plurality of semiconductor lasers capable of emitting a different frequencies; input couplers …
a plurality of semiconductor lasers capable of emitting a different frequencies; input couplers …
Method and apparatus for characterizing laser gain chips
G Partridge - US Patent 10,732,105, 2020 - Google Patents
A system adapted for characterizing gain chips and a method for characterizing gain chips
are disclosed. The system includes a probe light source that generates an output light signal …
are disclosed. The system includes a probe light source that generates an output light signal …