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Controlled nonlinearity monolithic integrated optoelectronic mixing receiver

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2 Author(s)
Liu, Q.Z. ; Telecommun. Res. Lab., Edmonton, Alta., Canada ; MacDonald, R.I.

A monolithic integrated optoelectronic mixing receiver with low conversion loss is demonstrated. It consists of a GaAs metal-semiconductor-metal (MSM) photodetector mixer and a two-stage transimpedance preamplifier. By modulating the bias of the MSM photodetector with a local oscillator, the information signal on an optical carrier is down-converted to an electrical intermediate frequency. The mixing receiver nonlinearity can be controlled by simply changing the bias values to the MSM photodetector. The optoelectronic mixer has applications in subcarrier-multiplied lightwave distribution systems.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:5 ,  Issue: 12 )