Title

Time- and spectrally resolved ultrafast gain dynamics of a semiconductor optical amplifier under phase-correlated multiwavelength pulse amplification

Authors

Authors

L. C. Archundia; B. Resan;P. J. Delfyett

Comments

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Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

DIODE-LASERS; GB/S; Physics, Applied

Abstract

The ultrafast gain dynamics of an AlGaAs semiconductor optical amplifier (SOA) are measured under phase-correlated multiwavelength pulse amplification using time-resolved pump-probe techniques. Both the temporal and spectral gain dynamics are measured. Carrier heating due to two photon absorption, carrier cooling, four-wave mixing, and cross-phase modulation effects are observed. These effects are evident when amplifying dispersion compensated pulses, and it is shown how these effects decrease when amplifying nondispersion compensated (chirped) pulses. This helps to avoid nonlinear effects in the gain media (SOA), which, in turn, helps to support the operation of external cavity multiwavelength semiconductor mode-locked lasers where the intracavity pulses are inherently chirped. (C) 2004 American Institute of Physics.

Journal Title

Applied Physics Letters

Volume

85

Issue/Number

20

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

4567

Last Page

4569

WOS Identifier

WOS:000225166400003

ISSN

0003-6951

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