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Optics Letters

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  • Vol. 23, Iss. 15 — Aug. 1, 1998
  • pp: 1212–1214

Ultrashort-pulse-controlled all-optical modulation by interband and intersubband transitions in doped quantum wells

A. Neogi, O. Wada, Y. Takahashi, and H. Kawaguchi  »View Author Affiliations


Optics Letters, Vol. 23, Issue 15, pp. 1212-1214 (1998)
http://dx.doi.org/10.1364/OL.23.001212


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Abstract

The optimum condition for achieving highly efficient ultrafast all-optical pulse modulation by modification of the absorption of a pulsed interband light field by ultrasubband control-light pulses in a doped quantum well is investigated. The modulation efficiency in the femtosecond domain can be maximized by an intersubband control light with a pulse width (200 fs) that is comparable with the phase-relaxation time of the system and an intensity that is close to the intersubband saturation intensity.

© 1998 Optical Society of America

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(130.5990) Integrated optics : Semiconductors
(230.5590) Optical devices : Quantum-well, -wire and -dot devices
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(320.7120) Ultrafast optics : Ultrafast phenomena

Citation
A. Neogi, O. Wada, Y. Takahashi, and H. Kawaguchi, "Ultrashort-pulse-controlled all-optical modulation by interband and intersubband transitions in doped quantum wells," Opt. Lett. 23, 1212-1214 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-15-1212


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