Simultaneous injection locking of couples of high-power broad-area lasers driven by a common current source.
We experimentally demonstrate the simultaneous injection locking of pairs of high-power broad-area laser diodes in a 19-laser array driven by a common current source. Each pair is injection locked by use of a single-mode low-power semiconductor laser. The frequency and phase locking are verified bythe optical spectrum and the interference pattern between the injection-locked lasers. The influence of frequency detuning on the (simultaneous) injection behavior has been experimentally clarified. We validate a necessary condition for the injection locking of a broad-area laser array.
Center for Engineering Science Advanced Research, Oak Ridge National Laboratory, Tennessee 37831-6355, USA. liuy2@ornl.gov
Yun
Y
Liu
Hua-Kuang
HK
Liu
Yehuda
Y
Braiman