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Updated: Jul 9, 2026
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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Pulsed degenerate optical parametric oscillator based on a nonlinear-fiber Sagnac interferometer
Optics Letters
|December 19, 2007
Summary
This study demonstrates an all-fiber optical parametric oscillator that generates compressed, ultrashort pulses. The fiber amplifier acts as a pulse compressor, improving spectral symmetry and reducing the time-bandwidth product.
Area of Science:
- Nonlinear optics
- Fiber optics
- Laser physics
Background:
- Optical parametric oscillators (OPOs) are crucial for generating tunable laser light.
- Fiber-based parametric amplifiers offer broad bandwidths for nonlinear optical processes.
Purpose of the Study:
- To report the operation of an all-fiber degenerate optical parametric oscillator.
- To investigate its performance as a pulse compressor.
Main Methods:
- Utilized a nonlinear-fiber Sagnac interferometer as a parametric amplifier.
- Employed synchronous pumping with picosecond pulses at 1544 nm.
Main Results:
- Achieved 0.83-ps output pulses from 3.9-ps pump pulses, demonstrating pulse compression.
- Observed improved spectral symmetry and reduced time-bandwidth product in output pulses.
- Identified group-velocity dispersion as a limiting factor for further pulse width reduction.
Conclusions:
- The all-fiber OPO functions effectively as a pulse compressor due to the amplifier's wide bandwidth.
- Suggests potential for frequency conversion using similar pulsed OPOs operating away from degeneracy.
