Abstract
Continuous-wave optical parametric amplification by using a 1.5-μm diode laser and a Ti:sapphire laser has been performed for the first time to our knowledge to generate highly coherent tunable infrared light in a KTP crystal. Tunable output from 1.38 to 1.67 μm with microwatt power was obtained. We also propose a scheme for a precision frequency-tunable light source in the 1.5-μm region with an expected frequency tuning range of 4 THz by using an optical frequency comb generator and the phase-locking technique.
© 1993 Optical Society of America
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