Linearized Single Sideband Modulation Link With High SFDR Performance

Ruiqi Zheng, Erwin H.W. Chan, Xudong Wang, Xinhuan Feng, Bai Ou Guan

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A linearized fiber optic link without dispersion induced power fading is presented. It is based on using a dual-drive dual-polarization modulator to generate a single sideband (SSB) RF modulated optical signal and an orthogonally linear polarized unmodulated optical signal. The link is linearized and consequently the third-order spurious-free dynamic range (SFDR3) is largely increased by designing the angle of a linear polarizer connected to the modulator output to suppress the third-order intermodulation distortion. The two Mach Zehnder modulators inside the dual-polarization modulator are biased at the quadrature point. Hence, there is no degradation in the link second-order spurious-free dynamic range (SFDR2) performance compared with the conventional quadrature-biased Mach Zehnder modulator link. Experimental results demonstrate an SSB modulation link without dispersion induced power fading and a record measured SFDR3 of 121.4 dB·Hz 4/5

Original languageEnglish
Article number8611093
Pages (from-to)299-302
Number of pages4
JournalIEEE Photonics Technology Letters
Volume31
Issue number4
DOIs
Publication statusPublished - 15 Feb 2019

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single sideband transmission
Modulators
Telecommunication links
modulators
Modulation
fading
quadratures
Mach number
dynamic range
optical communication
Polarization
Intermodulation distortion
intermodulation
polarization
polarizers
sidebands
Fiber optics
fiber optics
degradation
Degradation

Cite this

Zheng, Ruiqi ; Chan, Erwin H.W. ; Wang, Xudong ; Feng, Xinhuan ; Guan, Bai Ou. / Linearized Single Sideband Modulation Link With High SFDR Performance. In: IEEE Photonics Technology Letters. 2019 ; Vol. 31, No. 4. pp. 299-302.
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title = "Linearized Single Sideband Modulation Link With High SFDR Performance",
abstract = "A linearized fiber optic link without dispersion induced power fading is presented. It is based on using a dual-drive dual-polarization modulator to generate a single sideband (SSB) RF modulated optical signal and an orthogonally linear polarized unmodulated optical signal. The link is linearized and consequently the third-order spurious-free dynamic range (SFDR3) is largely increased by designing the angle of a linear polarizer connected to the modulator output to suppress the third-order intermodulation distortion. The two Mach Zehnder modulators inside the dual-polarization modulator are biased at the quadrature point. Hence, there is no degradation in the link second-order spurious-free dynamic range (SFDR2) performance compared with the conventional quadrature-biased Mach Zehnder modulator link. Experimental results demonstrate an SSB modulation link without dispersion induced power fading and a record measured SFDR3 of 121.4 dB·Hz 4/5",
keywords = "Analog optical links, dynamic range, intermodulation distortion, linearization techniques, optical single sideband",
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Linearized Single Sideband Modulation Link With High SFDR Performance. / Zheng, Ruiqi; Chan, Erwin H.W.; Wang, Xudong; Feng, Xinhuan; Guan, Bai Ou.

In: IEEE Photonics Technology Letters, Vol. 31, No. 4, 8611093, 15.02.2019, p. 299-302.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Linearized Single Sideband Modulation Link With High SFDR Performance

AU - Zheng, Ruiqi

AU - Chan, Erwin H.W.

AU - Wang, Xudong

AU - Feng, Xinhuan

AU - Guan, Bai Ou

PY - 2019/2/15

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N2 - A linearized fiber optic link without dispersion induced power fading is presented. It is based on using a dual-drive dual-polarization modulator to generate a single sideband (SSB) RF modulated optical signal and an orthogonally linear polarized unmodulated optical signal. The link is linearized and consequently the third-order spurious-free dynamic range (SFDR3) is largely increased by designing the angle of a linear polarizer connected to the modulator output to suppress the third-order intermodulation distortion. The two Mach Zehnder modulators inside the dual-polarization modulator are biased at the quadrature point. Hence, there is no degradation in the link second-order spurious-free dynamic range (SFDR2) performance compared with the conventional quadrature-biased Mach Zehnder modulator link. Experimental results demonstrate an SSB modulation link without dispersion induced power fading and a record measured SFDR3 of 121.4 dB·Hz 4/5

AB - A linearized fiber optic link without dispersion induced power fading is presented. It is based on using a dual-drive dual-polarization modulator to generate a single sideband (SSB) RF modulated optical signal and an orthogonally linear polarized unmodulated optical signal. The link is linearized and consequently the third-order spurious-free dynamic range (SFDR3) is largely increased by designing the angle of a linear polarizer connected to the modulator output to suppress the third-order intermodulation distortion. The two Mach Zehnder modulators inside the dual-polarization modulator are biased at the quadrature point. Hence, there is no degradation in the link second-order spurious-free dynamic range (SFDR2) performance compared with the conventional quadrature-biased Mach Zehnder modulator link. Experimental results demonstrate an SSB modulation link without dispersion induced power fading and a record measured SFDR3 of 121.4 dB·Hz 4/5

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