Frequency Stability of Spatial Mode Interference (Tilt) locking
Date
2002
Authors
Slagmolen, Bram
Shaddock, Daniel
Gray, Malcolm
McClelland, David
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers (IEEE Inc)
Abstract
This paper describes the investigation of the frequency stability of tilt locking, a technique which derives an error signal for locking a laser to an optical cavity by use of spatial-mode interference. By independently locking two lasers to the same optical cavity and measuring the beat frequency, a direct measurement of the stability of tilt locking was obtained. The beatnote exhibited a normal Allan deviation of 3.3 Hz over a time interval of 100 ms, yeilding a relative frequency stability of 1.3 × 10-14. This result implies at least a fractional locking stability of 1.3 × 10-14. Moreover, this stability was limited by fluctuations in the cavity spacer length and not the tilt-locking technique.
Description
Keywords
Keywords: Electric fields; Frequency stability; Integral equations; Laser beams; Light interference; Light polarization; Photodetectors; Quantum efficiency; Signal to noise ratio; Allan variance; Frequency locking; Spatial interference; Spatial mode interference lo Allan variance; Frequency locking; Frequency stability; Laser locking; Spatial interference
Citation
Collections
Source
IEEE Journal of Quantum Electronics
Type
Journal article