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Independently programmable frequency-multiplexed phase-sensitive optical parametric amplification in the optical
Optics Express
|July 16, 2021
Summary
Researchers demonstrate programmable frequency-domain squeezed states generation using phase-sensitive amplification. This technique offers flexible control over parallel squeezed light production in optical telecommunication bands.
Area of Science:
- Quantum optics
- Nonlinear optics
- Quantum information science
Background:
- Squeezed states are crucial for quantum technologies.
- Controlling squeezed states in parallel is challenging.
- Frequency-domain multiplexing offers a path for parallelization.
Purpose of the Study:
- To experimentally demonstrate programmable multimode phase-sensitive amplification.
- To achieve flexible control of parallelly generated squeezed states.
- To operate within the optical telecommunication band.
Main Methods:
- Utilizing type-II periodically poled potassium titanyl phosphate (PPKTP) crystal.
- Employing pulse shaping techniques for pump laser control.
- Leveraging frequency-domain multiplexing for parallel generation.
- Performing optical parametric gain measurements with a coherent probe.
Main Results:
- Demonstrated independent programmability of phase-sensitive optical parametric amplification (OPA).
- Successfully controlled parallel generation of squeezed states in different frequency bands.
- Verified control via optical parametric gain measurements.
Conclusions:
- Programmable multimode phase-sensitive amplification is feasible.
- Frequency-domain control enables flexible generation of parallel squeezed states.
- This method is suitable for the optical telecommunication band.
