Fiber-Based Laser Transmitter for Oxygen A-Band Spectro-scopy and Remote Sensing

摘要

A fiber-based laser transmitter has been designed for active remote-sensing spectroscopy. The transmitter uses a master-oscil-lator-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 nonlinear crystal. The utility of this single-frequency, wavelength-tunable, power-scalable laser has been demonstrated in a spectroscopic measurement of the diatomic oxygen A-band.