Microwave Photonic Frequency Tripler based on an Integrated Dual-Parallel Modulator Structure

Chongjia Huang; Hao Chen; Erwin H.W. Chan

doi:10.1109/JPHOT.2017.2747595

Microwave Photonic Frequency Tripler based on an Integrated Dual-Parallel Modulator Structure

Chongjia Huang, Hao Chen, Erwin H.W. Chan

Research output: Contribution to journal › Article › peer-review

Abstract

A new technique for tripling the frequency of a microwave signal is presented. It is based on an integrated dual-parallel Mach Zehnder modulator, which generates two orthogonally polarised RF modulated optical signals with different modulation indexes, and a polarisation dependent optical attenuator. The photodetector output fundamental RF components generated by the two orthogonally polarised RF modulated optical signals have the same amplitude but an opposite phase, which are cancelled, leaving the frequency tripled microwave signal and the unwanted fifth order harmonic. The new frequency tripler has a simple structure, a wide bandwidth and a high electrical spurious suppression ratio. Experimental results are presented demonstrating three times frequency multiplication of different-frequency microwave signals with electrical spurious suppression ratio of over 20 dB. The phase noise and the stability performance of the frequency tripler are also investigated experimentally.

Original language	English
Number of pages	11
Journal	IEEE Photonics Journal
Volume	9
Issue number	5
DOIs	https://doi.org/10.1109/JPHOT.2017.2747595
Publication status	Published - Oct 2017

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title = "Microwave Photonic Frequency Tripler based on an Integrated Dual-Parallel Modulator Structure",

abstract = "A new technique for tripling the frequency of a microwave signal is presented. It is based on an integrated dual-parallel Mach Zehnder modulator, which generates two orthogonally polarised RF modulated optical signals with different modulation indexes, and a polarisation dependent optical attenuator. The photodetector output fundamental RF components generated by the two orthogonally polarised RF modulated optical signals have the same amplitude but an opposite phase, which are cancelled, leaving the frequency tripled microwave signal and the unwanted fifth order harmonic. The new frequency tripler has a simple structure, a wide bandwidth and a high electrical spurious suppression ratio. Experimental results are presented demonstrating three times frequency multiplication of different-frequency microwave signals with electrical spurious suppression ratio of over 20 dB. The phase noise and the stability performance of the frequency tripler are also investigated experimentally.",

keywords = "electrooptic modulators, Frequency modulation, Microwave generation, Microwave photonics, microwave photonics, Optical attenuators, optical fiber devices, Optical harmonic generation, Radio frequency",

author = "Chongjia Huang and Hao Chen and Chan, {Erwin H.W.}",

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AU - Huang, Chongjia

AU - Chen, Hao

AU - Chan, Erwin H.W.

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N2 - A new technique for tripling the frequency of a microwave signal is presented. It is based on an integrated dual-parallel Mach Zehnder modulator, which generates two orthogonally polarised RF modulated optical signals with different modulation indexes, and a polarisation dependent optical attenuator. The photodetector output fundamental RF components generated by the two orthogonally polarised RF modulated optical signals have the same amplitude but an opposite phase, which are cancelled, leaving the frequency tripled microwave signal and the unwanted fifth order harmonic. The new frequency tripler has a simple structure, a wide bandwidth and a high electrical spurious suppression ratio. Experimental results are presented demonstrating three times frequency multiplication of different-frequency microwave signals with electrical spurious suppression ratio of over 20 dB. The phase noise and the stability performance of the frequency tripler are also investigated experimentally.

AB - A new technique for tripling the frequency of a microwave signal is presented. It is based on an integrated dual-parallel Mach Zehnder modulator, which generates two orthogonally polarised RF modulated optical signals with different modulation indexes, and a polarisation dependent optical attenuator. The photodetector output fundamental RF components generated by the two orthogonally polarised RF modulated optical signals have the same amplitude but an opposite phase, which are cancelled, leaving the frequency tripled microwave signal and the unwanted fifth order harmonic. The new frequency tripler has a simple structure, a wide bandwidth and a high electrical spurious suppression ratio. Experimental results are presented demonstrating three times frequency multiplication of different-frequency microwave signals with electrical spurious suppression ratio of over 20 dB. The phase noise and the stability performance of the frequency tripler are also investigated experimentally.

KW - electrooptic modulators

KW - Frequency modulation

KW - Microwave generation

KW - Microwave photonics

KW - microwave photonics

KW - Optical attenuators

KW - optical fiber devices

KW - Optical harmonic generation

KW - Radio frequency

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Microwave Photonic Frequency Tripler based on an Integrated Dual-Parallel Modulator Structure

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