Cavity-dumped 2.70 microm erbium laser using optomechanical shutter.
A cavity-dumped 2.70 microm erbium laser with a frustrated total internal reflection (FTIR) shutter was investigated and compared with a Q-switched erbium laser using the FTIR shutter. The Q-switched and the cavity-dumped 2.70 microm laser outputs were obtained with a dichroic coated mirror with high reflectance at 2.70 microm and high transmittance at 2.79 microm. For the Q-switched operation, a maximum peak power of 33.5 kW was achieved, and its pulse width was 1.3 mus. For the cavity-dumped operation, the laser pulse energy was optimized by changing the switching time of the FTIR shutter. When the pulse width is reduced to 210 ns, the peak power increases to 154 kW.
Park
Young Ho
YH
Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Republic of Korea.
Won Lee
Dong
D
Kong
Hong Jin
HJ
Kim
Yeong Sik
YS
D000042:Absorption; D004867:Equipment Design; D004871:Erbium / Q000737:chemistry*; D053685:Laser Therapy / Q000295:instrumentation* / Q000379:methods*; D007834:Lasers; D055096:Optical Devices; D013696:Temperature
D004871:Erbium