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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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93% pump depletion, 3.5-W continuous-wave, singly resonant optical parametric oscillator.

W R Bosenberg, A Drobshoff, J I Alexander

|October 31, 2009

Summary

We developed advanced optical parametric oscillator (OPO) configurations using periodically poled lithium niobate, achieving record efficiency and high-power output for tunable infrared light generation.

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Area of Science:

Nonlinear Optics
Laser Physics
Materials Science

Background:

Optical parametric oscillators (OPOs) are crucial for generating tunable laser light.
Previous OPO designs faced limitations in efficiency and output power.
Periodically poled lithium niobate (PPLN) offers unique nonlinear properties.

Purpose of the Study:

To enhance the efficiency and output power of continuous-wave (cw) singly resonant OPOs.
To investigate two distinct OPO cavity configurations for optimal performance.
To characterize the generated idler beam's power, noise, and spectral properties.

Main Methods:

Utilized two four-mirror OPO cavities incorporating periodically poled lithium niobate.
Employed a 1.064-microm Nd:YAG laser as the pump source.

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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

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Last Updated: Jun 19, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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Published on: May 30, 2014

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

Measured pump depletion, idler output power, amplitude noise, and spectral bandwidth.

Main Results:

Achieved 93% pump depletion and ~86% photon conversion efficiency.
Generated 3.55 W of idler output power at 3.25 microm, reaching ~80% of quantum-limited performance.
Demonstrated tunable cw output exceeding 1 W across the 3.3-3.9 microm spectral range.

Conclusions:

The developed PPLN-based OPO configurations significantly outperform previous designs in efficiency and power.
The study provides valuable insights into optimizing OPO performance for tunable infrared applications.
The high-power, tunable output has implications for spectroscopy, sensing, and other scientific fields.