Title

Lateral Carrier Sweep-Out In Multi-Quantum Well Optoelectronic Devices

Abstract

The initially photogenerated carriers in a waveguide device have a Gaussian density profile with a characteristic width of about 1mm. The transmission of the probe beam is a function of the overlap integral between the waveguide mode and the carrier density profile. In the absence of electric field, the carriers dissipate by lateral diffusion; and the characteristic time constant is about 1ns. However, with the application of the electric field carrier, drifting takes place and the combination of drift and diffusion result in a much faster change in the overlap integral between the waveguide mode and the carrier cross-sections. This lateral carrier transport process can be used to enhance the switching speed of devices such as the nonlinear directional coupler.

Publication Date

12-1-1995

Publication Title

Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS

Volume

2

Number of Pages

295-296

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0029535954 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0029535954

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