We report on 120-mW directly measured cw power at 532 nm from a tunable α -distributed-feedback laser diode near 1.064 µm frequency doubled in a KTP crystal operating room temperature inside a ring cavity. Our experimental setup allows us to scan frequencies up to 2 THz in the green-light domain and thus is extremely useful for iodine spectroscopy. We show good agreement between experimental results and theoretical predictions for the second-harmonic generation process.
© 2000 Optical Society of America
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
Y. Hadjar, F. Ducos, and O. Acef, "Stable 120-mW green output tunable over 2 THz by a second-harmonic generation process in a KTP crystal at room temperature," Opt. Lett. 25, 1367-1369 (2000)