Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Saturation behavior and self-phase modulation of picosecond pulses in single-stripe and tapered semiconductor laser amplifiers

Not Accessible

Your library or personal account may give you access

Abstract

We experimentally investigate and theoretically describe the amplification of ultrashort optical pulses in a double-stage InGaAs-semiconductor laser amplifier system consisting of a double-pass single-stripe diode laser and a tapered amplifier. The pulses were generated by a mode-locked single-stripe laser in an external-resonator configuration. On amplification in a tapered amplifier, pulses exhibited both spectral broadening and distortion, depending on the tapered amplifier current and the injected optical pulse power. This behavior originates from the dynamic nonlinear carrier induced spatiospectral gain and index changes as well as gain saturation and leads to self-phase modulation. The origin of the observed behavior is revealed by a spatially resolved microscopic theory based on Maxwell–Bloch–Langevin equations that takes into account many-body interactions, energy transfer between carrier and phonon systems, and, in particular, the spatiotemporal interplay of stimulated and amplified spontaneous emission and noise.

© 2000 Optical Society of America

Full Article  |  PDF Article
More Like This
Pulse trapping and nonequilibrium spatiotemporal wave mixing in broad-area semiconductor lasers

E. Gehrig and O. Hess
J. Opt. Soc. Am. B 15(12) 2861-2867 (1998)

Ultrafast active phase conjugation in broad-area semiconductor laser amplifiers

Edeltraud Gehrig and Ortwin Hess
J. Opt. Soc. Am. B 18(7) 1036-1040 (2001)

Femtosecond dynamics of active semiconductor waveguides: microscopic analysis and experimental investigations

E. Gehrig, O. Hess, A. Volland, G. Jennemann, I. Fischer, and W. Elsäβer
J. Opt. Soc. Am. B 21(9) 1638-1646 (2004)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved