We apply Fourier-transform spectral interferometry to complete phase and intensity characterization of a chirped filter engraved in a persistent spectral hole-burning (PSHB) material. The conjugated transfer function of a grating pair compressor is stored in a PSHB material as an accumulated spectral hologram that behaves as a pulse stretcher. By directing the diffracted pulse back through the compressor, we verified that the PSHB stretcher’s transfer function is indeed conjugated to that of the grating pair compressor. We have extended the spectral phase analysis to regions where the engraved structure is much narrower than the spectrometer’s resolution.
© 2003 Optical Society of America
(020.1670) Atomic and molecular physics : Coherent optical effects
(300.6240) Spectroscopy : Spectroscopy, coherent transient
(320.5520) Ultrafast optics : Pulse compression
(320.5540) Ultrafast optics : Pulse shaping
T. Chanelière, J.-L. Le Gouët, and D. Ricard, "Persistent spectral hole-burning materials as pulse shapers: phase analysis of a chirped coherent filter," J. Opt. Soc. Am. B 20, 585-590 (2003)