We developed a point-fluorescent-source-based white-light interferometer for high-resolution reflectometry, range-gating imaging, and group-velocity-dispersion measurement. The laser-pumped point fluorescent source has 9 mW of power and a spatial coherence of 0.97, which allows it to be used like a laser beam. Owing to its 40-nm FWHM spectral width, the width of its temporal autocorrelation is only 19 fs, which corresponds to that of 14-fs Gaussian pulses.
© 1993 Optical Society of America
Original Manuscript: December 28, 1992
Published: May 1, 1993
Hsiao-Hua Liu, Po-Hsiu Cheng, and Jyhpyng Wang, "Spatially coherent white-light interferometer based on a point fluorescent source," Opt. Lett. 18, 678-680 (1993)