23 March 2017 Four-amplitude shift keying-single sideband millimeter-wave signal generation with frequency sextupling based on optical phase modulation
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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 the 4 th - order and + 2 nd - 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 + 2 nd - order sideband carries the ASK signal with a constant slope while the 4 th - 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.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Peng Wu, Peng Wu, Jianxin Ma, Jianxin Ma, } "Four-amplitude shift keying-single sideband millimeter-wave signal generation with frequency sextupling based on optical phase modulation," Optical Engineering 56(3), 036111 (23 March 2017). https://doi.org/10.1117/1.OE.56.3.036111 . Submission: Received: 19 January 2017; Accepted: 8 March 2017
Received: 19 January 2017; Accepted: 8 March 2017; Published: 23 March 2017
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