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Related Experiment Video

Updated: May 18, 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

Mode-locked, continuous-wave, singly resonant optical parametric oscillator.

Kavita Devi1, S Chaitanya Kumar, M Ebrahim-Zadeh

  • 1ICFO-Institut de Ciencies Fotoniques, Castelldefels, Barcelona, Spain. kavita.devi@icfo.es

Optics Letters
|October 9, 2012
PubMed
Summary
This summary is machine-generated.

We demonstrate an actively mode-locked continuous-wave (cw) optical parametric oscillator (SRO) producing stable 230 ps pulses at 80 MHz. This research explores mode-locking dynamics in MgO:sPPLT for tunable laser applications.

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Area of Science:

  • Nonlinear Optics
  • Laser Physics
  • Quantum Optics

Background:

  • Continuous-wave (cw) optical parametric oscillators (OPOs) are crucial light sources.
  • Achieving stable mode-locking in singly resonant oscillators (SROs) presents unique challenges.
  • MgO:sPPLT is a promising nonlinear material for OPO applications.

Purpose of the Study:

  • To report the development of an actively mode-locked cw SRO.
  • To investigate the generation of stable picosecond pulses.
  • To analyze the influence of modulation parameters on pulse characteristics.

Main Methods:

  • Utilized a standing-wave cavity configuration for the idler-resonant cw SRO.
  • Employed MgO:sPPLT as the nonlinear gain medium, pumped at 532 nm.
  • Implemented an intracavity phase modulator for active mode-locking.

Main Results:

  • Successfully generated stable 230 ps pulses at an 80 MHz repetition rate.
  • Investigated the impact of modulation depth and frequency on pulse duration and repetition rate.
  • Confirmed mode-locking through enhanced second-harmonic generation.

Conclusions:

  • Active mode-locking is an effective technique for generating ultrashort pulses from cw SROs.
  • The MgO:sPPLT material demonstrates suitability for high-repetition-rate pulsed OPO generation.
  • This work advances the development of tunable, high-repetition-rate ultrashort pulse laser systems.