Lasers, Fiber Optics, and Communications

Four-amplitude shift keying-single sideband millimeter-wave signal generation with frequency sextupling based on optical phase modulation

[+] Author Affiliations
Peng Wu, Jianxin Ma

Beijing University of Posts and Telecommunications, State Key Laboratory of Information Photonics and Optical Communications, School of Electronic Engineering, Beijing, China

Opt. Eng. 56(3), 036111 (Mar 23, 2017). doi:10.1117/1.OE.56.3.036111
History: Received January 19, 2017; Accepted March 8, 2017
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Abstract.  We have proposed and demonstrated a scheme to generate a frequency-sextupling amplitude shift keying (ASK)-single sideband optical millimeter (mm)-wave signal with high dispersion tolerance based on an optical phase modulator (PM) by ably using the4th-order and +2nd-order sidebands of the optical modulation. The ASK radio frequency signal, superposed by a local oscillator with the same frequency, modulates the lightwave via an optical PM with proper voltage amplitudes, the +2nd-order sideband carries the ASK signal with a constant slope while the 4th-order sideband maintains constant amplitude. These two sidebands can be abstracted by a wavelength selective switch to form a dual-tone optical mm-wave with only one tone carrying the ASK signal. As only one tone bears the ASK signal while the other tone is unmodulated, the generated dual-tone optical mm-wave signal has high dispersion tolerance.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Peng Wu and Jianxin Ma
"Four-amplitude shift keying-single sideband millimeter-wave signal generation with frequency sextupling based on optical phase modulation", Opt. Eng. 56(3), 036111 (Mar 23, 2017). ; http://dx.doi.org/10.1117/1.OE.56.3.036111


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