A phase-sensitive optomechanical Mach-Zehnder amplifier placed before lossy readout suppresses readout-loss noise by the square of its gain, yielding modest simulated low-frequency sensitivity gains for LIGO Voyager.
ACKNOWLEDGMENTS We would like to acknowledge conversation with the Quantum Noise and Advanced Interferometer working groups of the LIGO Science Collaboration
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A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers
A phase-sensitive optomechanical Mach-Zehnder amplifier placed before lossy readout suppresses readout-loss noise by the square of its gain, yielding modest simulated low-frequency sensitivity gains for LIGO Voyager.