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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
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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
Summary
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.
- 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.
