Optical Frequency Shifter Employing a Brillouin-Assisted Filtering Technique

Hao Chen; Erwin H.W. Chan

doi:10.1109/JPHOT.2017.2688441

Optical Frequency Shifter Employing a Brillouin-Assisted Filtering Technique

Hao Chen, Erwin H.W. Chan

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

3 Citations (Scopus)

Abstract

A new optical frequency shifter is presented. It is based on a double sideband suppressed carrier radio-frequency (RF) modulated optical signal into a Brillouin-assisted filter, which is formed by a Brillouin medium between a pair of optical circulators. The frequency shifting operation is realized by utilizing multiple stimulated Brillouin scattering gain and loss spectra to amplify one of the third-order sidebands but attenuate the other sidebands. The frequency shifter has a simple structure and a high frequency shifted to unwanted frequency component ratio. It also has the ability to realize a very large frequency shift, which is three times the input electrical driving signal frequency. The frequency shifter is experimentally demonstrated with the results showing a 32.53 GHz optical frequency shift of a continuous wave light at 1551.016 nm with over 34 dB difference between the wanted frequency shifted and unwanted frequency components.

Original language	English
Article number	16795179
Pages (from-to)	1-11
Number of pages	11
Journal	IEEE Photonics Journal
Volume	9
Issue number	2
DOIs	https://doi.org/10.1109/JPHOT.2017.2688441
Publication status	Published - Apr 2017

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10.1109/JPHOT.2017.2688441

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abstract = "A new optical frequency shifter is presented. It is based on a double sideband suppressed carrier radio-frequency (RF) modulated optical signal into a Brillouin-assisted filter, which is formed by a Brillouin medium between a pair of optical circulators. The frequency shifting operation is realized by utilizing multiple stimulated Brillouin scattering gain and loss spectra to amplify one of the third-order sidebands but attenuate the other sidebands. The frequency shifter has a simple structure and a high frequency shifted to unwanted frequency component ratio. It also has the ability to realize a very large frequency shift, which is three times the input electrical driving signal frequency. The frequency shifter is experimentally demonstrated with the results showing a 32.53 GHz optical frequency shift of a continuous wave light at 1551.016 nm with over 34 dB difference between the wanted frequency shifted and unwanted frequency components.",

keywords = "electro-optical systems, Fiber optics systems, microwave photonics signal processing",

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

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AB - A new optical frequency shifter is presented. It is based on a double sideband suppressed carrier radio-frequency (RF) modulated optical signal into a Brillouin-assisted filter, which is formed by a Brillouin medium between a pair of optical circulators. The frequency shifting operation is realized by utilizing multiple stimulated Brillouin scattering gain and loss spectra to amplify one of the third-order sidebands but attenuate the other sidebands. The frequency shifter has a simple structure and a high frequency shifted to unwanted frequency component ratio. It also has the ability to realize a very large frequency shift, which is three times the input electrical driving signal frequency. The frequency shifter is experimentally demonstrated with the results showing a 32.53 GHz optical frequency shift of a continuous wave light at 1551.016 nm with over 34 dB difference between the wanted frequency shifted and unwanted frequency components.

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Optical Frequency Shifter Employing a Brillouin-Assisted Filtering Technique

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