The gain and index dynamics of a QD amplifier operating at 1.55 µm are characterized via heterodyne pump-probe measurements with 150 fs resolution. A 13ps gain recovery time was found, promising for all-optical signal processing.
© 2006 Optical Society of America
(230.0230) Optical devices : Optical devices
(230.4320) Optical devices : Nonlinear optical devices
(320.0320) Ultrafast optics : Ultrafast optics
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
A. J. Zilkie, J. Meier, P. W. Smith, M. Mojahedi, J. S. Aitchison, P. J. Poole, C. N. Allen, P. Barrios, and D. Poitras, "Ultrafast Gain and Index Dynamics in an InAs/InGaAsP Quantum Dot Amplifier Operating at 1.55 µm," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CMJJ5.
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