Cavity-enhanced optical frequency doubler based on transmission-mode Hänsch-Couillaud locking

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DOIResolve DOI: http://doi.org/10.1007/s00340-011-4437-z
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TypeArticle
Journal titleApplied Physics B: Lasers and Optics
ISSN0946-2171
Volume104
Issue4
Pages897908; # of pages: 12
SubjectDoublers; Error signal; Experimental validations; Optical frequency; Polarization analysis; Pump beams; Pump laser; Spatial filters; Frequency doublers; Natural frequencies; Optical materials; Pumping (laser)
AbstractA variant of the Hänsch-Couillaud technique for locking the pump laser frequency to a cavity-enhanced optical frequency doubler is presented. In contrast to the original scheme in which the pump laser light reflected by the enhancement cavity is monitored, the error signal for locking is obtained by polarization analysis of the light transmitted by the cavity. The cavity serves as a spectral and spatial filter for the pump beam, making the transmission-mode locking method particularly useful if the beam quality is poor. Experimental validation of the method is demonstrated by generating more than 190 mW of stable 461 nm light from a cavity-enhanced frequency doubler that is pumped by a diode laser system. © 2011 Her Majesty the Queen in Right of Canada.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for National Measurement Standards (INMS-IENM)
Peer reviewedYes
NPARC number21271291
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Record identifier678e42d8-6241-4cc7-9fe5-e69673ff7005
Record created2014-03-24
Record modified2016-05-09
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