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Electro-optic frequency response shaping using embedded FIR filters in slow-wave modulators

Laurens Breyne (UGent) , Joris Lambrecht (UGent) , Michiel Verplaetse (UGent) , Xin Yin (UGent) , Günther Roelkens (UGent) , Peter Ossieur (UGent) and Johan Bauwelinck (UGent)
(2021) JOURNAL OF LIGHTWAVE TECHNOLOGY. 39(6). p.1777-1784
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  • ATTO (A new concept for ultra-high capacity wireless networks.)
Abstract
A novel method is presented to embed finite-impulse-response filters in slow-wave Mach-Zehnder modulators. This allows to adjust the electro-optic frequency response to the designer's needs. The filter is embedded by adding optical delay lines and optical crossings between phase shifter segments. The position of the delay lines and crossing in the modulator and the delay line length determine the final response. In this work, we provide a full analysis and modeling approach of the proposed technique and apply it to a silicon photonic modulator. However, the technique is generally applicable to slow-wave modulators and thus not limited to a silicon photonics platform. The modeling is verified using measurements on the manufactured devices. A shaped modulator is used in C-band transmission experiments with 56 Gb/s NRZ data over 3 km fiber to counteract chromatic dispersion and show the advantage over a standard modulator.
Keywords
Modulation, Silicon, Phase shifters, Finite impulse response filters, Transmission line matrix methods, Power transmission lines, Optical attenuators, High-speed optical modulators, Mach-Zehnder, modulators, slow-wave modulators, silicon photonics, FIR filters

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Citation

Please use this url to cite or link to this publication:

MLA
Breyne, Laurens, et al. “Electro-Optic Frequency Response Shaping Using Embedded FIR Filters in Slow-Wave Modulators.” JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 39, no. 6, 2021, pp. 1777–84, doi:10.1109/JLT.2020.3043131.
APA
Breyne, L., Lambrecht, J., Verplaetse, M., Yin, X., Roelkens, G., Ossieur, P., & Bauwelinck, J. (2021). Electro-optic frequency response shaping using embedded FIR filters in slow-wave modulators. JOURNAL OF LIGHTWAVE TECHNOLOGY, 39(6), 1777–1784. https://doi.org/10.1109/JLT.2020.3043131
Chicago author-date
Breyne, Laurens, Joris Lambrecht, Michiel Verplaetse, Xin Yin, Günther Roelkens, Peter Ossieur, and Johan Bauwelinck. 2021. “Electro-Optic Frequency Response Shaping Using Embedded FIR Filters in Slow-Wave Modulators.” JOURNAL OF LIGHTWAVE TECHNOLOGY 39 (6): 1777–84. https://doi.org/10.1109/JLT.2020.3043131.
Chicago author-date (all authors)
Breyne, Laurens, Joris Lambrecht, Michiel Verplaetse, Xin Yin, Günther Roelkens, Peter Ossieur, and Johan Bauwelinck. 2021. “Electro-Optic Frequency Response Shaping Using Embedded FIR Filters in Slow-Wave Modulators.” JOURNAL OF LIGHTWAVE TECHNOLOGY 39 (6): 1777–1784. doi:10.1109/JLT.2020.3043131.
Vancouver
1.
Breyne L, Lambrecht J, Verplaetse M, Yin X, Roelkens G, Ossieur P, et al. Electro-optic frequency response shaping using embedded FIR filters in slow-wave modulators. JOURNAL OF LIGHTWAVE TECHNOLOGY. 2021;39(6):1777–84.
IEEE
[1]
L. Breyne et al., “Electro-optic frequency response shaping using embedded FIR filters in slow-wave modulators,” JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 39, no. 6, pp. 1777–1784, 2021.
@article{8706106,
  abstract     = {{A novel method is presented to embed finite-impulse-response filters in slow-wave Mach-Zehnder modulators. This allows to adjust the electro-optic frequency response to the designer's needs. The filter is embedded by adding optical delay lines and optical crossings between phase shifter segments. The position of the delay lines and crossing in the modulator and the delay line length determine the final response. In this work, we provide a full analysis and modeling approach of the proposed technique and apply it to a silicon photonic modulator. However, the technique is generally applicable to slow-wave modulators and thus not limited to a silicon photonics platform. The modeling is verified using measurements on the manufactured devices. A shaped modulator is used in C-band transmission experiments with 56 Gb/s NRZ data over 3 km fiber to counteract chromatic dispersion and show the advantage over a standard modulator.}},
  author       = {{Breyne, Laurens and Lambrecht, Joris and Verplaetse, Michiel and Yin, Xin and Roelkens, Günther and Ossieur, Peter and Bauwelinck, Johan}},
  issn         = {{0733-8724}},
  journal      = {{JOURNAL OF LIGHTWAVE TECHNOLOGY}},
  keywords     = {{Modulation,Silicon,Phase shifters,Finite impulse response filters,Transmission line matrix methods,Power transmission lines,Optical attenuators,High-speed optical modulators,Mach-Zehnder,modulators,slow-wave modulators,silicon photonics,FIR filters}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{1777--1784}},
  title        = {{Electro-optic frequency response shaping using embedded FIR filters in slow-wave modulators}},
  url          = {{http://dx.doi.org/10.1109/JLT.2020.3043131}},
  volume       = {{39}},
  year         = {{2021}},
}

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