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Updated: Jun 19, 2026
09:23
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Raman-noise limit on squeezing in continuous-wave four-wave mixing
Optics Letters
|October 28, 2009
Summary
A new quantum theory for self-phase modulation (SPM) in optical fibers needs response time and Raman noise. This theory reveals a Raman noise limit for generating squeezed states in fiber optics.
Area of Science:
- Quantum optics
- Nonlinear fiber optics
Background:
- Self-phase modulation (SPM) is crucial in nonlinear fiber optics.
- Accurate quantum descriptions require incorporating physical constraints like response time and noise.
Purpose of the Study:
- To develop a continuous-time quantum theory for SPM in optical fibers.
- To investigate the implications of this theory for squeezed-state generation.
Main Methods:
- Formulating a continuous-time quantum theory for SPM.
- Analyzing the continuous-wave, four-wave mixing limit.
- Investigating the role of response time and Raman noise.
Main Results:
- The theory necessitates a nonzero response time for classical SPM fidelity.
- Raman noise is required for preserving commutators in the quantum description.
- A Raman noise limit was identified for fiber-based squeezed-state generation.
Conclusions:
- The developed quantum theory accurately models SPM by including essential physical parameters.
- The findings highlight a fundamental limitation imposed by Raman noise on quantum information processing in optical fibers.
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