Sale, T. E. Woodhead, J. Pabla, A. S. Grey, R. Claxton, P. A. Robson, P. N. Moloney, M. H. Hegarty, J. , Bistable self-electro-optic operation of strained In0.1Ga0.9As/GaAs asymmetric Fabry Perot modulators, Applied Physics Letters, 59, 14, 1991, 1670 - 1672
Applied Physics Letters 59 14
We report bistable operation of a strained-layer InGaAs/GaAs asymmetric Fabry-Perot
optical modulator configured as a self-electro-optic effect device (SEED) operating in reflection
mode. Bistable loops are observed from 949 to 962 nm with switching powers down to
submicrowatt levels. The contrast ratio between on and off states is as large as 5:I (7 dB) and
the device will hold in either state indefinitely. A 600-,um-diam device has a switching
time of 20 pusf or 2.1 fJ pm - 2 switching energy. Large optical latch arrays are envisagedu sing
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