Technique - (2) Fiber-optic gyroscope quantum-limited rotation sensing

Type: Experimental

Description: Sagnac-interferometer fiber gyroscopes engineered toward the fundamental (shot-noise/quantum) sensitivity limit for rotation sensing.

Fabien Bretenaker 🔗
Ecole Normale Superieure Paris-Saclay 🔗
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Department(s)/lab(s): Physics | LuMIn - Lasers, Atomic & Quantum Optics (Bretenaker/Goldfarb) @ ENSPS
Summary:

Bretenaker (former LuMIn director) works on laser physics and quantum optics: sub-shot-noise sensing with phase-sensitive-amplifier-generated entangled beams, spin-noise spectroscopy in atomic vapours, EIT slow light, and quantum-limited passive resonant (fiber/bulk) gyroscopes with Thales. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work represents the fundamental-light and quantum-limited-rotation-sensing side.

Michel Digonnet 🔗
Stanford University 🔗
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Department(s)/lab(s): Applied Physics | Digonnet Group (Ginzton Laboratory) @ Stanford
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Digonnet's group develops high-sensitivity fiber-optic sensors, especially resonant and interferometric fiber-optic gyroscopes engineered to approach fundamental (shot-noise/quantum) rotation-sensing limits, alongside specialty fiber lasers and amplifiers.