Characterization and optimization of an eight-channel time-multiplexed pulse-shaping system

Dorrer, Christophe; Bittle, Wade A.; Cuffney, Robert; Spilatro, Michael; Hill, Elizabeth M.; Kosc, Tanya Z.; Kelly, John H.; Zuegel, Jonathan D.

doi:10.1109/JLT.2016.2637281

Title: Characterization and optimization of an eight-channel time-multiplexed pulse-shaping system

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Abstract

High-performance optical pulse shaping is paramount to photonics and lasers applications for which high-resolution optical waveforms must be generated. We investigate the design and performance of a time-multiplexed pulse shaping (TMPS) system in which optical waveforms from a single pulse-shaping unit are demultiplexed and retimed before being sent to different optical systems. This architecture has the advantages of low cost and low relative jitter between optical waveforms because a single pulse-shaping system, e.g., a high-performance arbitrary waveform generator driving a Mach-Zehnder modulator, generates all the waveforms. We demonstrate an eight-channel TMPS system based on a 1 × 8 LiNbO₃ demultiplexer composed of four stages of 1 × 2 Δβ phase-reversal switches that allow for demultiplexing and extinction enhancement via application of a control voltage modifying the propagation constant difference between adjacent waveguides. It is shown that optimal demultiplexing, i.e. low insertion loss and high extinction ratio between channels, requires optimization in dynamic operation because of the slow component of the switches’ response. Lastly, we demonstrate losses lower than 5 dB, extinction ratios of the order of 70 dB for a four-channel system and 50 dB for an eight-channel system, and jitter added by the demultiplexer smaller than 0.1 ps.

Authors:

Dorrer, Christophe ^[1]; Bittle, Wade A. ^[1]; Cuffney, Robert ^[1]; Spilatro, Michael ^[1]; Hill, Elizabeth M. ^[1]; Kosc, Tanya Z. ^[1]; Kelly, John H. ^[1]; Zuegel, Jonathan D. ^[1]

Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Publication Date:: Tue Dec 06 00:00:00 EST 2016

Research Org.:: Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1351528

Grant/Contract Number:: NA0001944

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Lightwave Technology

Additional Journal Information:: Journal Volume: 35; Journal Issue: 2; Journal ID: ISSN 0733-8724

Publisher:: IEEE

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; fiber optics components; lithium niobate; optical switching devices; pulse shaping

Citation Formats


                    Dorrer, Christophe, Bittle, Wade A., Cuffney, Robert, Spilatro, Michael, Hill, Elizabeth M., Kosc, Tanya Z., Kelly, John H., and Zuegel, Jonathan D. Characterization and optimization of an eight-channel time-multiplexed pulse-shaping system.  United States: N. p., 2016. 
Web.  doi:10.1109/JLT.2016.2637281.

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                    Dorrer, Christophe, Bittle, Wade A., Cuffney, Robert, Spilatro, Michael, Hill, Elizabeth M., Kosc, Tanya Z., Kelly, John H., & Zuegel, Jonathan D. Characterization and optimization of an eight-channel time-multiplexed pulse-shaping system.  United States.  https://doi.org/10.1109/JLT.2016.2637281

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                    Dorrer, Christophe, Bittle, Wade A., Cuffney, Robert, Spilatro, Michael, Hill, Elizabeth M., Kosc, Tanya Z., Kelly, John H., and Zuegel, Jonathan D. Tue .  
"Characterization and optimization of an eight-channel time-multiplexed pulse-shaping system".  United States.  https://doi.org/10.1109/JLT.2016.2637281.  https://www.osti.gov/servlets/purl/1351528.

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@article{osti_1351528,

  title        = {Characterization and optimization of an eight-channel time-multiplexed pulse-shaping system},

  author       = {Dorrer, Christophe and Bittle, Wade A. and Cuffney, Robert and Spilatro, Michael and Hill, Elizabeth M. and Kosc, Tanya Z. and Kelly, John H. and Zuegel, Jonathan D.},

  abstractNote = {High-performance optical pulse shaping is paramount to photonics and lasers applications for which high-resolution optical waveforms must be generated. We investigate the design and performance of a time-multiplexed pulse shaping (TMPS) system in which optical waveforms from a single pulse-shaping unit are demultiplexed and retimed before being sent to different optical systems. This architecture has the advantages of low cost and low relative jitter between optical waveforms because a single pulse-shaping system, e.g., a high-performance arbitrary waveform generator driving a Mach-Zehnder modulator, generates all the waveforms. We demonstrate an eight-channel TMPS system based on a 1 × 8 LiNbO3 demultiplexer composed of four stages of 1 × 2 Δβ phase-reversal switches that allow for demultiplexing and extinction enhancement via application of a control voltage modifying the propagation constant difference between adjacent waveguides. It is shown that optimal demultiplexing, i.e. low insertion loss and high extinction ratio between channels, requires optimization in dynamic operation because of the slow component of the switches’ response. Lastly, we demonstrate losses lower than 5 dB, extinction ratios of the order of 70 dB for a four-channel system and 50 dB for an eight-channel system, and jitter added by the demultiplexer smaller than 0.1 ps.},

  doi          = {10.1109/JLT.2016.2637281},

  journal      = {Journal of Lightwave Technology},

  number       = 2,

  volume       = 35,

  place        = {United States},

  year         = {Tue Dec 06 00:00:00 EST 2016},

  month        = {Tue Dec 06 00:00:00 EST 2016}

}

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