Optical Frequency Shifter Employing a Brillouin-Assisted Filtering Technique

Hao Chen, Erwin H.W. Chan

    Research output: Contribution to journalArticleResearchpeer-review

    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 languageEnglish
    Article number16795179
    Pages (from-to)1-11
    Number of pages11
    JournalIEEE Photonics Journal
    Volume9
    Issue number2
    DOIs
    Publication statusPublished - Apr 2017

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    Stimulated Brillouin scattering
    sidebands
    frequency shift
    carrier frequencies
    continuous radiation
    optical communication
    radio frequencies
    filters

    Cite this

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    title = "Optical Frequency Shifter Employing a Brillouin-Assisted Filtering Technique",
    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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    Optical Frequency Shifter Employing a Brillouin-Assisted Filtering Technique. / Chen, Hao; Chan, Erwin H.W.

    In: IEEE Photonics Journal, Vol. 9, No. 2, 16795179, 04.2017, p. 1-11.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Optical Frequency Shifter Employing a Brillouin-Assisted Filtering Technique

    AU - Chen, Hao

    AU - Chan, Erwin H.W.

    PY - 2017/4

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    N2 - 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.

    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.

    KW - electro-optical systems

    KW - Fiber optics systems

    KW - microwave photonics signal processing

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