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Related Experiment Video

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Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Ultrafast optical frequency comb synthesizer and analyzer.

Tatsutoshi Shioda1, Toshiaki Yamazaki

  • 1Department of Electrical Engineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan. tshioda@vos.nagaokaut.ac.jp

Optics Letters
|September 4, 2012
PubMed
Summary

Researchers developed an ultrafast optical arbitrary waveform synthesizer and analyzer capable of 2 Tbit/s. This new technique manipulates optical frequency combs for precise waveform generation and analysis in the THz region.

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Area of Science:

  • Photonics
  • Optical Engineering
  • Waveform Synthesis

Background:

  • Ultrafast optical arbitrary waveform generation and analysis are crucial for advanced optical signal processing.
  • Existing methods face limitations in speed and precision for Terahertz (THz) frequency applications.

Purpose of the Study:

  • To propose and demonstrate an ultrafast optical arbitrary waveform synthesizing and analyzing technique.
  • To achieve waveform synthesis and analysis at speeds up to 2 Terabits per second (Tbit/s).

Main Methods:

  • Generation of a 400 GHz optical frequency comb from a 25 GHz comb using a colorless arrayed waveguide grating.
  • Manipulation of the amplitude and phase of the 400 GHz comb with a colorless optical synthesizer.
  • Analysis of the synthesized waveform using a custom heterodyne-detection technique and dual-heterodyne mixing.
  • Parallel observation of phase and amplitude spectra using a reference optical frequency comb and arrayed waveguide grating.

Main Results:

  • Successful demonstration of an ultrafast optical arbitrary waveform synthesizer and analyzer.
  • Achieved waveform synthesis and analysis capabilities at 2 Tbit/s.
  • Demonstrated parallel observation of phase and amplitude spectra.

Conclusions:

  • The developed ultrafast optical frequency comb synthesizer and analyzer system enables arbitrary waveform synthesis and analysis in the THz frequency region.
  • This technique offers high speed and precision for advanced optical signal processing applications.