title: Robust frequency stabilization of multiple spectroscopy lasers with large and tunable offset frequencies.
abstract: We have demonstrated a compact, robust device for simultaneous absolute frequency stabilization of three diode lasers whose carrier frequencies can be chosen freely relative to the reference. A rigid ULE multicavity block is employed, and, for each laser, the sideband locking technique is applied. A small lock error, computer control of frequency offset, wide range of frequency offset, simple construction, and robust operation are the useful features of the system. One concrete application is as a stabilization unit for the cooling and trapping lasers of a neutral-atom lattice clock. The device significantly supports and improves the clock's operation. The laser with the most stringent requirements imposed by this application is stabilized to a line width of 70 Hz, and a residual frequency drift less than 0.5 Hz/s. The carrier optical frequency can be tuned over 350 MHz while in lock.
authors: A
authors: A
authors: Nevsky
authors: S
authors: S
authors: Alighanbari
authors: Q-F
authors: QF
authors: Chen
authors: I
authors: I
authors: Ernsting
authors: S
authors: S
authors: Vasilyev
authors: S
authors: S
authors: Schiller
authors: G
authors: G
authors: Barwood
authors: P
authors: P
authors: Gill
authors: N
authors: N
authors: Poli
authors: G M
authors: GM
authors: Tino
mesh_terms: D016477:Artifacts; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005246:Feedback; D007834:Lasers; D013057:Spectrum Analysis / Q000295:instrumentation*