Ultrafast Dynamics in Field-Enhanced Saturate Absorbers

Author Info

J. R. Karin, University of California - Santa Barbara
R. J. Helkey, University of California - Santa Barbara
Dennis J. Derickson, University of California - Santa BarbaraFollow
R. Nagarajan, University of California - Santa Barbara
D. S. Allin, University of California - Santa Barbara
J. E. Bowers, University of California - Santa Barbara
R. L. Thornton, University of California - Santa Barbara

Recommended Citation

Published in Applied Physics Letters, Volume 64, Issue 6, February 7, 1994, pages 676-678.

NOTE: At the time of publication, the author Dennis Derickson was not yet affiliated with Cal Poly.

The definitive version is available at https://doi.org/10.1063/1.111058.

Abstract

Absorption recovery dynamics of GaAs/AlGaAs field-enhanced waveguide saturable absorbers are studied by pump-probe differential transmission measurements. We compare the response of bulk and single quantum well absorbers at different reverse bias levels and pump powers, and find an ultrafast transient in the response, followed by a slower rise before the final recovery. The absorption fully recovers after a few picoseconds, which is an important result for mode-locked lasers.

Disciplines

Electrical and Computer Engineering

Copyright

1994 American Institute of Physics.

Publisher statement

This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters