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Proceedings Paper

VCSELs with a novel integrated quantum-well absorber
Author(s): Sui F. Lim; Janice A. Hudgings; Gabriel S. Li; Wupen Yuen; Kam Y. Lau; Constance J. Chang-Hasnain
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Paper Abstract

The high reflectivity of VCSEL mirrors renders the device very sensitive to small changes int he reflectivity or absorption within the laser cavity. Therefore, the integration of a quantum-well absorber within the VCSEL enables compact, monolithic devices with multiple functions. As a result, the VCSEL exhibits a variety of useful characteristics under different configurations. In this work, we demonstrate the use of a quantum-well absorber within one of the VCSEL mirror stacks. With strategic design and simple biasing circuitry, we have shown experimentally (1) a VCSEL with an integrated quantum-well photodetector, (2) a self-pulsating VCSEL with a controllable quantum-well saturable absorber, and (3) a novel technique for VCSEL modulation where the quantum-well absorption is modulated, thereby modulating the laser light output. The theory, design criteria, experimental results, and potential applications for these devices are discussed.

Paper Details

Date Published: 20 April 1998
PDF: 12 pages
Proc. SPIE 3286, Vertical-Cavity Surface-Emitting Lasers II, (20 April 1998); doi: 10.1117/12.305453
Show Author Affiliations
Sui F. Lim, Univ. of California/Berkeley and Stanford Univ. (United States)
Janice A. Hudgings, Univ. of California/Berkeley (United States)
Gabriel S. Li, Univ. of California/Berkeley and Stanford Univ. (United States)
Wupen Yuen, Univ. of California/Berkeley and Stanford Univ. (United States)
Kam Y. Lau, Univ. of California/Berkeley (United States)
Constance J. Chang-Hasnain, Univ. of California/Berkeley (United States)

Published in SPIE Proceedings Vol. 3286:
Vertical-Cavity Surface-Emitting Lasers II
Kent D. Choquette; Robert A. Morgan, Editor(s)

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