Highly efficient, narrow-linewidth, and single-frequency actively and passively Q-switched fiber-bulk hybrid Er:YAG lasers operating at 1645 nm.
High power, highly efficient single frequency oscillation of Er:YAG fiber-bulk hybrid laser at 1645 nm is demonstrated in actively and passively Q-switched operation modes. The slope efficiencies in the active and passive Q-switched operation reached 75% and 20%, respectively, with the record output powers in the narrow-linewidth and single longitudinal mode regimes of operation.
Moskalev
Igor S
IS
UAB Department of Physics, 310 Campbell Hall, 1300 University Blvd., Birmingham, AL 35294, USA. moskalev@uab.edu
Fedorov
Vladimir V
VV
Gapontsev
Valentin P
VP
Gapontsev
Denis V
DV
Platonov
Nikolai S
NS
Mirov
Sergey B
SB