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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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High-energy picosecond OPO based on PPKTP.

D Chuchumishev1, G Marchev2, I Buchvarov3

  • 1Department of Physics, Sofia University, 5 James Bourchier Blvd., BG-1164 Sofia, Bulgaria.

Laser Physics
|October 1, 2014
PubMed
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This summary is machine-generated.

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A singly resonant optical parametric oscillator produced 1 mJ idler pulses at 2800 nm. This was achieved using a 500 Hz repetition rate and a near-diffraction-limited pump source.

Area of Science:

  • Optics and Photonics
  • Nonlinear Optics
  • Laser Physics

Background:

  • Optical parametric oscillators (OPOs) are crucial for generating tunable laser light.
  • Short cavity designs offer advantages in OPO efficiency and compactness.
  • High-energy, long-wavelength infrared (IR) sources are in demand for various applications.

Purpose of the Study:

  • To demonstrate high output energy from a short cavity singly resonant OPO.
  • To investigate the performance of PPKTP nonlinear crystals in OPO systems.
  • To achieve efficient generation of 2800 nm idler pulses using a near-diffraction-limited pump source.

Main Methods:

  • Utilized a short cavity singly resonant optical parametric oscillator (OPO) configuration.
  • Employed a 500 Hz, near-diffraction-limited, single-frequency pump source at 1064 nm.

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  • Used periodically poled potassium titanyl phosphate (PPKTP) as the nonlinear gain medium.

    • Main Results:

    • Achieved an output energy of 1 mJ for the idler pulses.
    • Generated idler pulses with a duration of 380 ps at a wavelength of 2800 nm.
    • Operated the OPO at a repetition rate of 500 Hz.

    Conclusions:

    • The short cavity singly resonant OPO design is effective for high-energy infrared pulse generation.
    • PPKTP is a suitable nonlinear material for this OPO configuration.
    • The system demonstrates potential for applications requiring high-power 2800 nm radiation.