Title :
Temperature sensitivity of phase-matched second-harmonic generation in LiIO3
Author :
Webb, Mark S. ; Velsko, Stephan P.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
fDate :
8/1/1990 12:00:00 AM
Abstract :
Measurements were made of the temperature dependence (between 23 and 65°C) of the phase-matching angle θpm for type I frequency doubling of 1064-nm laser light in lithium iodate (LiIO3). The measured value of dθpm/dT is -14.7±1 μrad/°C, which corresponds to a thermal sensitivity βT =0.24±0.02 cm-1/°C for this process. Also calculated is a value of dθpm/dT using experimentally determined thermooptic data available in the literature. The calculated value of dθpm/dT is -31±18 μrad/°C using literature values of n and dn/dT for LiIO3. The extreme sensitivity of the calculated value of dθpm/dT to small errors in the thermooptic coefficients may be the reason for this discrepancy
Keywords :
lithium compounds; optical harmonic generation; thermo-optical effects; 1064 nm; 23 to 65 degC; LiIO3; phase-matched second-harmonic generation; phase-matching angle; temperature dependence; thermal sensitivity; thermooptic data; type I frequency doubling; Frequency conversion; Frequency measurement; Nonlinear optics; Optical frequency conversion; Optical harmonic generation; Optical sensors; Phase measurement; Temperature dependence; Temperature measurement; Temperature sensors;
Journal_Title :
Quantum Electronics, IEEE Journal of
