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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Optical parametric oscillation in periodically poled lithium niobate based on continuous-wave synchronous pumping at
Optics Letters
|October 31, 2009
Summary
This study demonstrates a tunable optical parametric oscillator using a periodically poled lithium niobate crystal, achieving picosecond pulse generation for diverse laser applications.
Area of Science:
- Nonlinear Optics
- Laser Physics
Background:
- Optical parametric oscillators (OPOs) are crucial for generating tunable laser light.
- Synchronous pumping enhances OPO efficiency and stability.
- Periodically poled lithium niobate (PPLN) offers efficient nonlinear frequency conversion.
Purpose of the Study:
- To develop and characterize a singly resonant optical parametric oscillator (SRO).
- To utilize a PPLN crystal for tunable picosecond pulse generation.
- To investigate performance under synchronous pumping with a Nd:YLF laser.
Main Methods:
- Employed a PPLN crystal within a singly resonant cavity.
- Utilized a continuous-wave (cw) mode-locked Nd:YLF laser operating at 1.047 microm for synchronous pumping.
- Tuned the output wavelength by adjusting crystal temperature or pump-to-cavity resonance.
Main Results:
- Achieved tunable picosecond pulses from 1.67 to 2.806 microm.
- Obtained mean output powers of 120 mW for the signal and 90 mW for the idler wave.
- Demonstrated a high overall slope efficiency of 61% with 75% pump depletion.
Conclusions:
- The developed SRO system provides efficient and tunable picosecond pulses.
- Synchronous pumping with a Nd:YLF laser is effective for PPLN-based OPOs.
- The system shows potential for applications requiring tunable ultrashort laser pulses.
