Pre-stabilization of a distributed feedback diode laser for locking to a high-finesse cavity
- Resource Type
- Conference
- Authors
- Fordell, T.; Wallin, A.E.; Lindvall, T.; Merimaa, M.
- Source
- 2016 Conference on Precision Electromagnetic Measurements (CPEM 2016) Precision Electromagnetic Measurements (CPEM 2016), 2016 Conference on. :1-2 Jul, 2016
- Subject
- Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Power, Energy and Industry Applications
Semiconductor lasers
Fiber lasers
Cavity resonators
Clocks
Laser transitions
Diode lasers
Laser feedback
Laser stabilization
linewidth reduction
optical clocks
semiconductor lasers
ultra-stable lasers
- Language
- ISSN
- 2160-0171
An ultra-stable laser based on frequency doubling of a distributed feedback (DFB) semiconductor laser has been built for interrogation of the 674-nm clock transition in Sr + . The DFB laser is pre-stabilized using an all-fiber interferometer that reduces the linewidth from the 1 MHz regime down to a few kHz and enables reliable locking of the laser to a 30-cm reference cavity with a finesse of 270 000 at 674 nm The laser will be used in a Sr + single-ion clock that should reach a fractional frequency uncertainty of a few parts in 10 −18 .