Diode lasers offer a lightweight, rugged, and economic alternative to other types of laser source, but they often do not provide long-term stability and spectral purity of emission. We have developed a stabilized, near-infrared diode laser source that is capable of as much as 20 mW of single-mode output power for the effective replacement of a He–Ne laser in the path difference measuring system of a high-resolution (1.25-m maximum path difference) Fourier transform spectrometer. Laser characterization has been performed both in laboratory measurements and in flight tests, resulting in a relative frequency stability of better than 10-6 on a 6-h flight.
© 2000 Optical Society of America
Original Manuscript: May 18, 1999
Revised Manuscript: November 29, 1999
Published: February 20, 2000
Giovanni Bianchini, Michela Lanfranchi, and Ugo Cortesi, "Flight qualification of a diode laser for path difference determination of a high-resolution Fourier transform spectrometer," Appl. Opt. 39, 962-965 (2000)