Microwave phase-control scheme based on optical beat wave generation and propagation in an optical fiber

Tomoyuki Uehara; Kenichiro Tsuji; Guido Mueller; David Tanner

doi:10.1117/1.OE.57.1.016106

8 January 2018 Microwave phase-control scheme based on optical beat wave generation and propagation in an optical fiber

Tomoyuki Uehara, Kenichiro Tsuji, Guido Mueller, David Tanner

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Optical Engineering, Vol. 57, Issue 1, 016106 (January 2018). https://doi.org/10.1117/1.OE.57.1.016106

Abstract

A microwave phase-control scheme is proposed and experimentally demonstrated. Two lasers are combined in an optical fiber coupler to generate a beat signal. The beat frequency is tuned by controlling the frequency of one laser. Using the phase shift of the beat waves with different frequencies during the propagation in an optical fiber, the phase of the radio-frequency (RF) signal generated by a photodetector (PD) can be controlled. Using the phase shift during the propagation of beat waves in an optical fiber with different beat frequencies, the phase of the RF signal generated by a PD connected to the fiber can be controlled. A tunable phase shift ranging from 0 deg to 1400 deg is obtained for frequencies from 6 to 10 GHz. This scheme offers the advantages of fast tuning and precise phase control of an RF signal.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Tomoyuki Uehara, Kenichiro Tsuji, Guido Mueller, and David Tanner "Microwave phase-control scheme based on optical beat wave generation and propagation in an optical fiber," Optical Engineering 57(1), 016106 (8 January 2018). https://doi.org/10.1117/1.OE.57.1.016106

Received: 3 September 2017; Accepted: 15 December 2017; Published: 8 January 2018

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