Continuously tunable modulation scheme for precision control of optical cavities with variable detuning
Author(s)Ackley, Sarah F; Evans, Matthew J; Yam, William; Davis, Emily J.; Mavalvala, Nergis
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We present a scheme for locking optical cavities with arbitrary detuning by many linewidths from resonance using an electro-optic modulator that can provide arbitrary ratios of amplitude-to-phase modulation. We demonstrate our scheme on a Fabry–Perot cavity, and show that a well-behaved linear error signal can be obtained by demodulating the reflected light from a cavity that is detuned by several linewidths.
DepartmentLaser Interferometer Gravitational-Wave Observatory; Massachusetts Institute of Technology. Department of Physics
Optical Society of America
Yam, W., E. Davis, S. Ackley, M. Evans, and N. Mavalvala. “Continuously Tunable Modulation Scheme for Precision Control of Optical Cavities with Variable Detuning.” Optics Letters 40, no. 15 (July 31, 2015): 3675. doi:10.1364/ol.40.003675. ©2015