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RF Frequency Down-conversion with Quadratic Electro-optic Effect
Conference proceeding

RF Frequency Down-conversion with Quadratic Electro-optic Effect

Yifei Li, Renyuan Wang, Peter Herczfeld, Jonathan Klamkin, Leif Johansson, John Bowers and IEEE
2009 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM, VOLS 1-3
01 Jan 2009

Abstract

Engineering Engineering, Electrical & Electronic Physical Sciences Physics Physics, Applied Science & Technology Technology
The frequency down-converter is an essential element of a photonic radar frontend. In this paper we describe a new photonic frequency down-conversion approach employing a quadratic optical phase modulator. When paired with an OPLL linear phase demodulator, this approach can potentially achieve a large dynamic range and a low conversion loss. A preliminary experiment has been performed to verify frequency down-conversion with an InP MQW optical phase modulator. It has been found that the unwanted 4(th) order electro-optic effect that exists in phase modulator results in spurious distortion for the down-converted RF signal. The techniques for mitigation are discussed.

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8 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Engineering, Electrical & Electronic
Physics, Applied
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