NDLI: Ultrahigh-resolution coherent optical spectrum analysis based on electrical frequency sweeping with a doubled measurement range

Content Provider	IET Digital Library
Author	Zhu, Beibei Xue, Min Pan, Shilong
Abstract	Based on electrical frequency sweeping, an ultrahigh-resolution coherent optical spectrum analyser with a doubled measurement range is proposed and experimentally demonstrated. In the scheme, a frequency-swept electrical signal is converted to the optical domain. By selecting one of the second-order sidebands of the generated optical signal, a wavelength-swept signal with a frequency range that is twice the bandwidths of the electro-optic and RF components is generated. With the wavelength-swept signal, high-resolution optical spectrum analysis with a doubled measurement range is implemented. In a proof-of-concept experiment, the spectrum of a multi-tone optical signal with a bandwidth of 20 GHz is measured with a resolution of 1.5 MHz by employing 10 GHz components.
Starting Page	842
Ending Page	844
Page Count	3
ISSN	00135194
Volume Number	54
e-ISSN	1350911X
Issue Number	Issue 13, Jun (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/54/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2018.1208
Journal	Electronics Letters
Publisher Date	2018-05-24
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bandwidth 20.0 GHz Doubled Measurement Range Electrical Frequency Sweeping Electro-optic Component Frequency 1.5 MHz Frequency 10.0 GHz Frequency Range Frequency-swept Electrical Signal High-resolution Optical Spectrum Analysis Microwave Photonics Multitone Optical Signal Optical Domain Optical Information Processing Optical Signal Optical, Image And Video Signal Processing Proof-of-concept Experiment RF Component Second-order SideBand Signal Resolution Spectral Analysis Ultrahigh-resolution Coherent Optical Spectrum Analysis Wavelength-swept Signal
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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