Chinese Optics Letters, 2016, 14 (9): 091403, Published Online: Aug. 3, 2018
Titanium dioxide-based Q -switched dual wavelength in the 1 micron region
060.3510 Lasers, fiber 140.3510 Lasers, fiber 140.3540 Lasers, Q-switched 140.3615 Lasers, ytterbium
Abstract
In this work a passively Q -switched dual-wavelength ytterbium-doped fiber laser using a titanium dioxide-based saturable absorber is proposed and proven. The system also utilizes a side-polished fiber in a ring cavity configuration to obtain the desired pulse train. A stable dual-wavelength pulse output is obtained at 1034.7 and 1039.0 nm, with a maximum pulse energy of 2.0 nJ, and a shortest pulse width of 3.2 μs. The generated pulse train is stable, and has a pulse repetition rate from 31.2 to 64.5 kHz.
H. Ahmad, M. A. M. Salim, Z. A. Ali, M. F. Ismail, K. Thambiratnam, A. A. Latif, N. Nayan, S. W. Harun. Titanium dioxide-based