Quantum Enhanced Measurement of an Optical Frequency Comb
- URL: http://arxiv.org/abs/2003.05833v2
- Date: Fri, 13 Mar 2020 15:01:45 GMT
- Title: Quantum Enhanced Measurement of an Optical Frequency Comb
- Authors: Y. Cai, J. Roslund, V. Thiel, C. Fabre, and N. Treps
- Abstract summary: Measuring the spectral properties of an optical frequency comb is among the most fundamental tasks of precision metrology.
We demonstrate here single shot multi parameter estimation at and beyond the standard quantum limit.
Using a quantum frequency comb that consists of multiple squeezed states in a family of Hermite-Gaussian spectral/temporal modes, the signal-to-noise ratios of the mean energy and the central frequency measurements surpass the shot-noise limit by around 19% and 15%, respectively.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Measuring the spectral properties of an optical frequency comb is among the
most fundamental tasks of precision metrology. In contrast to general
single-parameter measurement schemes, we demonstrate here single shot
multiparameter estimation at and beyond the standard quantum limit. The mean
energy and the central frequency of ultrafast pulses are simultaneously
determined with a multi-pixel-spectrally-resolved (MPSR) apparatus, without
changing the photonics architecture. Moreover, using a quantum frequency comb
that consists of multiple squeezed states in a family of Hermite-Gaussian
spectral/temporal modes, the signal-to-noise ratios of the mean energy and the
central frequency measurements surpass the shot-noise limit by around 19% and
15%, respectively. Combining our multi-pixel detection scheme and the intrinsic
multimode quantum resource could find applications in ultrafast quantum
metrology and multimode quantum information processing.
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