Phase modulated radio-over-fiber link with electro-optic downconversion using a delay-line interferometer

Thomas E. Murphy; Vincent R. Pagán

doi:10.1117/12.875695

21 February 2011 Phase modulated radio-over-fiber link with electro-optic downconversion using a delay-line interferometer

Thomas E. Murphy, Vincent R. Pagán

Author Affiliations +

Proceedings Volume 7936, RF and Millimeter-Wave Photonics; 79360L (2011) https://doi.org/10.1117/12.875695
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

We describe and experimentally demonstrate a technique for transmitting microwave signals over an optical fiber and downconverting them to an intermediate frequency at the receiver. The system uses two electrooptic phase modulators, one in the transmitter and the other in the receiver, to optically heterodyne the microwave input signal with a microwave local oscillator. The phase modulated signal is detected at the receiver using an optical delay-line interferometer and a pair of balanced photodectectors. This simple configuration allows downconversion and common-mode noise suppression to be simultaneously realized with relatively high RF-to-IF gain.

Citation Download Citation

Thomas E. Murphy and Vincent R. Pagán "Phase modulated radio-over-fiber link with electro-optic downconversion using a delay-line interferometer", Proc. SPIE 7936, RF and Millimeter-Wave Photonics, 79360L (21 February 2011); https://doi.org/10.1117/12.875695

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