Abstract

Low-noise cw 8.7-mW blue light is generated by frequency doubling of the output of a Fabry–Perot diode laser in a ${\mathrm{KNbO}}_3$ crystal inside a bow-tie ring cavity. The blue output has a narrow linewidth and a greater than 10-GHz continuous tuning range, with intensity fluctuations of less than 0.02 dB. The blue light has a near-diffraction-limited Gaussian ${\mathrm{TEM}}_{00}$ mode with $M^2\approx 1.$

© 2001 Optical Society of America

Frequency-tunable 500-mW continuous-wave all-solid-state single-frequency source in the blue spectral region

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