title: Frequency locking a laser to an optical cavity by use of spatial mode interference.
abstract: We present a novel technique to frequency lock a laser to an optical cavity. This technique, tilt locking, utilizes a misalignment of the laser with respect to the cavity to produce a nonresonant spatial mode. By observing the interference between the carrier and the spatial mode one can obtain a quantum-noise-limited frequency discriminator. Tilt locking offers a number of potential benefits over existing locking schemes, including low cost, high sensitivity, and simple implementation.
authors: D A
authors: DA
authors: Shaddock
authors: M B
authors: MB
authors: Gray
authors: D E
authors: DE
authors: McClelland