Title :
Temperature sensitivity of KDP for phase-matched frequency conversion of 1 μm laser light
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
fDate :
8/1/1994 12:00:00 AM
Abstract :
The magnitudes of the derivatives of the phase-matching angles with respect to temperature |∂θpm/∂T| (milli-radians/degree celsius), for critically phase-matched frequency conversion using KDP (KH2PO4) have been directly measured for the five most interesting processes to inertial confinement fusion (ICF) laser-system designers: 2ω I, 2ω II, 3ω I, 3ω II, and 4ω I. These measurements span an approximate temperature range of 25 to 90°C, and were performed at a fundamental (1ω) wavelength of λ=1.064 pm. The results are used to calculate the phase-matching thermal-sensitivity parameter |βT | (centimeter-1/milliradian), for each conversion process
Keywords :
optical frequency conversion; plasma production and heating by laser beam; potassium compounds; refractive index; 1.064 mum; 25 to 90 degC; KDP; KH2PO4; critically phase-matched frequency conversion; fundamental wavelength; inertial confinement fusion laser-system designers; phase-matching angles; phase-matching thermal-sensitivity parameter; temperature range; temperature sensitivity; Frequency conversion; Frequency measurement; Inertial confinement; Laser fusion; Optical design; Performance evaluation; Phase measurement; Temperature distribution; Temperature sensors; Wavelength measurement;
Journal_Title :
Quantum Electronics, IEEE Journal of
