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10:17
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Bright squeezed-light generation by a continuous-wave semimonolithic parametric amplifier
Optics Letters
|October 31, 2009
Summary
Researchers generated stable amplitude-squeezed light using an optical parametric amplifier. This breakthrough offers sub-shot-noise performance for advanced metrology applications.
Area of Science:
- Quantum optics
- Laser physics
Background:
- Optical parametric amplifiers (OPAs) are crucial for generating non-classical states of light.
- Achieving stable, low-noise light sources is essential for precision measurements.
Purpose of the Study:
- To generate continuous-wave (CW) amplitude-squeezed light with high stability.
- To demonstrate the suitability of the generated light for sub-shot-noise metrology.
Main Methods:
- Utilized a dual-port type I degenerate optical parametric amplifier.
- Employed a frequency-doubled Nd:YAG laser as the pump source.
- Resonantly injected a 1064 nm seed wave and extracted the squeezed output wave.
Main Results:
- Achieved continuous-wave amplitude-squeezed light at 1064 nm.
- Observed amplitude noise reduction up to 4.3 dB at 0.15 mW output power.
- Demonstrated stable noise suppression exceeding 3.8 dB for several hours via pump phase locking.
Conclusions:
- The developed dual-port OPA system provides excellent long-term stability.
- The generated amplitude-squeezed light is suitable for sub-shot-noise metrology applications.
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