Abstract
We propose a continuous-wave (CW) middle infrared (MIR) and long infrared
(LIR) dual-band laser for the calibration and effect research of infrared detecting
and imaging systems. A total output power of 18 W is achieved by the proposed
dual-band laser through one DF gain medium module and one parallel placed CO<sub>2</sub> gain
medium module using a common stable resonator and output mirror with nominal
transmissivities of ~5% in the MIR band and ~10% in the LIR band. Spectra of
dual-band laser are acquired. The power extracting efficiency of this dual-band
laser can be significantly improved, as validated by a single-band test of optimized
parameters.
© 2012 Chinese Optics Letters
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