Extended tuning of an injection-locked diode laser.
We have investigated the application of an electronic feedback technique recently reported by Repasky et al. [Appl. Opt. 45, 9013 (2006)] to an injection-locked semiconductor diode laser. We find that without electronic feedback, the injection-locked slave laser will only follow the master for less than 1 GHz, but once the electronic feedback is applied, the slave laser is capable of following for more than 20 GHz, corresponding to the full scan range of the master laser.
Shaffer
M K
MK
Old Dominion University, Department of Physics, Norfolk, Virginia 23529, USA.
Ranjit
G
G
Sukenik
C I
CI