Spectral hole-burning (SHB) technology is considered for >10-GHz instantaneous bandwidth signal-processing applications. In this context we report on what is believed to be the first demonstration of a SHB microwave spectrometer. A set of gratings engraved in a SHB crystal is used to filter one sideband of the optically carried microwave signal. The setup is confined to narrow-bandwidth operation, over a 35-MHz-wide interval. The first findings confirm the validity of the architecture in terms of spectral resolution, angular channel separation, and simultaneous detection of multiple spectral lines.
© 2001 Optical Society of America
(020.1670) Atomic and molecular physics : Coherent optical effects
(300.6240) Spectroscopy : Spectroscopy, coherent transient
(300.6370) Spectroscopy : Spectroscopy, microwave
(350.4010) Other areas of optics : Microwaves
Loïc Ménager, Ivan Lorgeré, Jean-Louis Le Gouët, Daniel Dolfi, and Jean-Pierre Huignard, "Demonstration of a radio-frequency spectrum analyzer based on spectral hole burning," Opt. Lett. 26, 1245-1247 (2001)