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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 10 — May. 15, 2008
  • pp: 1041–1043

Energy limits imposed by two-photon absorption for pulse amplification in high-power semiconductor optical amplifiers

Faisal R. Ahmad, Yen Wei Tseng, Mikhail A. Kats, and Farhan Rana  »View Author Affiliations


Optics Letters, Vol. 33, Issue 10, pp. 1041-1043 (2008)
http://dx.doi.org/10.1364/OL.33.001041


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Abstract

We study the combined effects of dynamic gain saturation and two-photon absorption on the amplification of short pulses in semiconductor optical amplifiers and show that two-photon absorption can saturate the amplifier gain and limit the output pulse energies even for amplifiers with large gain saturation energies. We discuss the upper limits for the pulse energies obtainable from semiconductor optical amplifiers in the presence of two-photon absorption and show that for single transverse mode waveguide amplifiers these upper limits can range from values as small as a few picojoules to several hundred picojoules for pulse widths in the 0.5 ps to 20 ps range, respectively.

© 2008 Optical Society of America

OCIS Codes
(250.5530) Optoelectronics : Pulse propagation and temporal solitons
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Ultrafast Optics

History
Original Manuscript: January 23, 2008
Manuscript Accepted: March 25, 2008
Published: May 7, 2008

Citation
Faisal R. Ahmad, Yen Wei Tseng, Mikhail A. Kats, and Farhan Rana, "Energy limits imposed by two-photon absorption for pulse amplification in high-power semiconductor optical amplifiers," Opt. Lett. 33, 1041-1043 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-10-1041

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