Tunable coherent light sources

Tunable infrared lasers

“…There exist a number of good articles that describe in detail the principles of operation for several tunable laser devices, Reference to each of these articles is made in the text. I n particular, Colles and Pidgeon (1975) have discussed the physics of dye lasers, semiconductor diode lasers, spin-flip Raman lasers and parametric oscillators, while Kuhl and Schmidt (1974) have described tunable coherent sources in general. This review describes the operating principles and characteristics of some tunable laser devices which operate in the infrared spectral region that have not been discussed by Colles and Pidgeon (1975).…”

Optoacoustic Spectroscopy.

“…2 and CO. This region is of particular interest because the relative lack of absorption exhibited by the atmosphere from 3-5 um makes it a potential window for the propagation of high power laser sources.…”

Report

“…Tunable sources of coherent radiation other than dye lasers are available for other regions of the electromagnetic spectrum (9)(10)(11)(12), particularly the infrared. Semiconductor diode lasers and spin-flip Raman lasers emit in the "information-rich" infrared fingerprint region (4000-400 cm-1).…”