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Proceedings Paper

Low-chirp cascaded multiple quantum well vertical light modulator
Author(s): Dong-Sun Min; Dietrich W. Langer
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Paper Abstract

A new cascaded multiple quantum well (MQW) vertical light modulator with low output phase shift characteristics is proposed. In the proposed structure, one of the cascaded MQW modulator is used as a light switch and the other MQW modulator is used as a phase compensator to offset output phase shift. We modeled the performance of the proposed modulator in which GaAs/AlGaAs MQW waveguide segments were positioned outside the main waveguide composed of AlGaAs material. Calculations based on beam propagation method (BPM) show that the proposed modulator has an output phase shift as low as 0.35 radian for 15 dB attenuation with a total device length as short as 300 micrometers for TE single-mode operation at wavelength of 800 nm.

Paper Details

Date Published: 22 December 1997
PDF: 8 pages
Proc. SPIE 3290, Optoelectronic Integrated Circuits II, (22 December 1997); doi: 10.1117/12.298239
Show Author Affiliations
Dong-Sun Min, Univ. of Pittsburgh (United States)
Dietrich W. Langer, Univ. of Pittsburgh (United States)

Published in SPIE Proceedings Vol. 3290:
Optoelectronic Integrated Circuits II
Shih-Yuan Wang; Yoon-Soo Park, Editor(s)

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