Improvements in strain-balanced InGaAs/GaAs optical modulators for 1047-nm operation

D. J. Goodwill; A. C. Walker; C. R. Stanley; M. C. Holland; M. McElhinney

doi:10.1063/1.110886

Improvements in strain-balanced InGaAs/GaAs optical modulators for 1047-nm operation

D. J. Goodwill, A. C. Walker, C. R. Stanley, M. C. Holland, M. McElhinney

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

We demonstrate a self-electro-optic effect device (SEED) designed to work at 1047 nm to match the high power available from a Nd:YLF laser. The device uses a strain-balanced InGaAs/GaAs multiple quantum well grown on a GaAs substrate with an InGaAs buffer layer of linearly graded composition. It has improved performance compared to previous devices in this system. We have obtained a single pass modulation contrast ratio of 1.74 by applying 13-V reverse bias, and have found 99% photodetection quantum efficiency under the built-in junction field. Bistability in a resistor-SEED configuration is demonstrated.

Original language	English
Pages (from-to)	1192-1194
Number of pages	3
Journal	Applied Physics Letters
Volume	64
Issue number	10
DOIs	https://doi.org/10.1063/1.110886
Publication status	Published - 1994

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abstract = "We demonstrate a self-electro-optic effect device (SEED) designed to work at 1047 nm to match the high power available from a Nd:YLF laser. The device uses a strain-balanced InGaAs/GaAs multiple quantum well grown on a GaAs substrate with an InGaAs buffer layer of linearly graded composition. It has improved performance compared to previous devices in this system. We have obtained a single pass modulation contrast ratio of 1.74 by applying 13-V reverse bias, and have found 99% photodetection quantum efficiency under the built-in junction field. Bistability in a resistor-SEED configuration is demonstrated.",

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AU - Goodwill, D. J.

AU - Walker, A. C.

AU - Stanley, C. R.

AU - Holland, M. C.

AU - McElhinney, M.

PY - 1994

Y1 - 1994

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