Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
79 (2001), S. 18-20
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The laser emission of an InAs/GaAs quantum-dot laser after injection of a nonresonant optical pulse is time resolved using femtosecond upconversion. The injected pulse burns a hole into the gain spectrum that leads to an ultrafast redistribution of carriers away from the lasing wavelength, thereby generating a spatial domain of reduced laser intensity. This domain propagates through the laser, is reflected at the facets, and thus repeats periodically in the output of the quantum-dot laser, forming a train of dark pulses. As a slower response to the optically induced perturbation, gigahertz-frequency relaxation oscillations are observed. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1379977
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