Abstract

Generation of optically pumped far-IR laser emission requires CO₂ pump lasers which can operate on a large number of lines and be tuned over a broad frequency range about each line center while maintaining a sufficient power level and mode purity. Waveguide lasers satisfy most of these requirements and have been used for absorption measurements at offsets up to about ±200 MHz.¹ However, due to power limitation, optical pumping has so far only been performed out to ±150 MHz.²

© 1986 Optical Society of America