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Related Experiment Video

Updated: May 11, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Self-stabilizing optical clock pulse-train generator using SOA and saturable absorber for asynchronous optical packet

Tatsushi Nakahara1, Ryo Takahashi

  • 1NTT Photonics Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa Pref 243-0198 Japan. nakahara.tatsushi@lab.ntt.co.jp

Optics Express
|May 15, 2013
PubMed
Summary
This summary is machine-generated.

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This study introduces a self-stabilizing optical clock generator for asynchronous optical packets. It produces stable, low-jitter pulse trains from a single seed pulse without external gain control.

Area of Science:

  • Optical Engineering
  • Telecommunications

Background:

  • Asynchronous optical networks require robust pulse generation for variable-length packets.
  • Existing optical clock generators often need complex stabilization mechanisms.

Purpose of the Study:

  • To develop a novel, self-stabilizing optical clock pulse-train generator.
  • To enable processing of preamble-free, asynchronous optical packets.

Main Methods:

  • An optical loop incorporating a semiconductor optical amplifier (SOA) and a saturable absorber (SA).
  • Self-stabilization achieved by balancing gain (SOA) and absorption (SA).
  • Pulse generation via tapping a circulating seed pulse; stability ensured by negative slope gain function.

Main Results:

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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Generation and Coherent Control of Pulsed Quantum Frequency Combs

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Last Updated: May 11, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

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

  • Stable optical pulse train generated from a single 10-ps seed pulse.
  • Produced over 50 pulses with low jitter, even with 10 dB seed intensity variation.
  • Amplified spontaneous emission (ASE) suppressed by SA; carrier-recovery mismatch overcome by backward pulse.

Conclusions:

  • The proposed generator offers a stable and reliable solution for optical packet processing.
  • Demonstrates robustness against variations in seed pulse intensity.
  • Potential for simplifying optical network architectures.