Abstract

We report on the development of a fiber-based laser transmitter designed for active remote sensing spectroscopy. The transmitter uses a master oscillator power amplifier (MOPA) configuration with a distributed feedback diode-laser master oscillator and an erbium-doped fiber amplifier. The output from the MOPA is frequency-doubled with a periodically poled potassium titanium oxide phosphate crystal. With $35\mathrm{W}$ of single-frequency peak optical pump power, $8\mathrm{W}$ of frequency-doubled peak power was achieved. The utility of this single-frequency, wavelength tunable, power scalable laser was then demonstrated in a spectroscopic measurement of diatomic oxygen A band.

© 2007 Optical Society of America

High SBS-threshold, narrowband, erbium co-doped with ytterbium fiber amplifier pulses frequency-doubled to 770 nm

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