Microwave photonic mixer with high spurious-free dynamic range.
Appl Opt
; 53(17): 3687-95, 2014 Jun 10.
Article
en En
| MEDLINE
| ID: mdl-24921134
ABSTRACT
A new linearized photonic mixer structure, which can fully eliminate the third-order intermodulation distortion, is presented. It is based on an integrated dual-parallel Mach-Zehnder modulator to which an optimized RF split and an optimized optical phase shift are applied, in series with a Mach-Zehnder modulator driven by the LO. The mixer achieves a very high spurious-free dynamic range performance, it enables essentially infinite isolation between the RF and LO ports, and it has the ability to function over a multioctave frequency range. Experimental results demonstrate a record measured spurious free dynamic range performance of 127 dB·Hz(4/5), which is over 22 dB higher than that of the conventional dual-series Mach-Zehnder modulator-based microwave photonic mixer.
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MEDLINE
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En
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Appl Opt
Año:
2014
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Article