Affiliation:
1. Inner Mongolia University
Abstract
A microwave photonics instantaneous frequency measurement scheme with
14 channels based on an optical frequency comb (OFC) is proposed. In
this scheme, a 14-line flat OFC is generated by cascading a
dual-parallel Mach–Zehnder modulator (DPMZM) with a Mach–Zehnder
modulator (MZM). The intercepted microwave signal with
multiple-frequency components can be measured by using DPMZM,
Fabry–Perot filter (FPF), wavelength division multiplexer (WDM), and
optical power detector array. This scheme can measure and analyze the
frequency of microwave signals in the ranges of 0.5–13.5 GHz,
13.5–26.5 GHz, and 26.5–39.5 GHz with the measurement accuracy of
±
0.5
G
H
z
. The reconfigurability of the system
can be realized by adjusting the comb-line spacing of the OFC and the
free spectral range (FSR) of the FPF.
Funder
National Natural Science Foundation of
China
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
4 articles.
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