We review the current status of parametric oscillator tunable sources with an emphasis on progress in the past decade. Recent results are reported for the first OPO operated in a chalcopyrite crystal, AgGaS2.
Fan Yuan Xuan,
R. L Byer,
"Progress In Optical Parametric Oscillators", Proc. SPIE 0461, New Lasers for Analytical & Industrial Chemistry, (23 May 1984); doi: 10.1117/12.941069; https://doi.org/10.1117/12.941069