The mechanism investigation of ultrafast all-optical switch based on electron spin polarization relaxation at 1.55 &#956;m

Tao Wang; An Li

doi:10.1117/12.633567

9 December 2005 The mechanism investigation of ultrafast all-optical switch based on electron spin polarization relaxation at 1.55 μm

Tao Wang, An Li

Author Affiliations +

Proceedings Volume 6021, Optical Transmission, Switching, and Subsystems III; 60211R (2005) https://doi.org/10.1117/12.633567
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

Abstract

Exciton saturation and optical nonlinearities caused by phase-space filling(PSF) in InGaAs(P) MQWs are investigated. In-well carrier population under pump beam is calculated as a function of time. Changes in absorption of the two circularly polarized component of the linear polarized test beam resulting from PSF are calculated by the semiconductor nonlinear absorption formula, respectively. The refractive indices of the two circularly polarized component are obtained from the K-K relations. Transient rotation angle of the major axis of the probe polarization is then deduced.

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Tao Wang and An Li "The mechanism investigation of ultrafast all-optical switch based on electron spin polarization relaxation at 1.55 μm", Proc. SPIE 6021, Optical Transmission, Switching, and Subsystems III, 60211R (9 December 2005); https://doi.org/10.1117/12.633567

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