Mechanically tuned external-cavity lasers in which the cavity and the mode filter are tuned synchronously are well known and commercially available. The synchronicity allows phase-continuous tuning to be obtained. Acousto-optic tuning has potential advantages in terms of speed, stability, and precision, but a method for synchronous tuning is required. We propose such a method and describe its experimental verification.
© 2005 Optical Society of America
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.3600) Lasers and laser optics : Lasers, tunable
(140.5960) Lasers and laser optics : Semiconductor lasers
(230.1040) Optical devices : Acousto-optical devices
Geraint Owen and William R. Trutna, Jr., "Synchronous acousto-optic tuning of free-space external-cavity lasers," Appl. Opt. 44, 4972-4975 (2005)