Tunable single frequency radiation at 596 nm

Summary form only given. High-resolution spectroscopy requires light sources with narrow bandwidth, high stability, and broad turnability. Here, we report on a simple approach to achieve ultrastable, tunable single-frequency laser radiation in the orange spectral region with an output power of 16.7 mW. The experiment utilized single pass SFM of the radiation from two continuous wave non-planar Nd:YAG ring laser oscillators (NPROs) in periodically poled KTP (PPKTP).