A 1550 nm Q-switched fiber laser using a carbon platinum saturable absorber deposited on side-polished fiber（SPF） is proposed and demonstrated. The SPF is approximately 2 mm with a polarization-dependent loss（PDL）...A 1550 nm Q-switched fiber laser using a carbon platinum saturable absorber deposited on side-polished fiber（SPF） is proposed and demonstrated. The SPF is approximately 2 mm with a polarization-dependent loss（PDL）of 0.4 dB and an insertion loss of 2.5 dB. A stable Q-switched output spectrum is obtained at 1559.34 nm with a peak power of ~6 mW, a pulse width of 1.02 μs, pulse energy of 5.8 nJ, average output power of 0.76 mW, and a repetition rate of 131.6 kHz taken at a pump power of 230.0 mW. A signal-to-noise ratio of 49.62 d B indicates that the Q-switched pulse is highly stable.展开更多
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...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 1034.7and 1039.0 nm, with a maximum pulse energy of 2.0 n J, 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.展开更多
基金supported by the Ministry of Higher Education,Malaysia(MOHE)under the grants LRGS(2015)NGOD/UM/KPT and GA010-2014(ULUNG)the University of Malaya under the grant RU 010-2016
文摘A 1550 nm Q-switched fiber laser using a carbon platinum saturable absorber deposited on side-polished fiber（SPF） is proposed and demonstrated. The SPF is approximately 2 mm with a polarization-dependent loss（PDL）of 0.4 dB and an insertion loss of 2.5 dB. A stable Q-switched output spectrum is obtained at 1559.34 nm with a peak power of ~6 mW, a pulse width of 1.02 μs, pulse energy of 5.8 nJ, average output power of 0.76 mW, and a repetition rate of 131.6 kHz taken at a pump power of 230.0 mW. A signal-to-noise ratio of 49.62 d B indicates that the Q-switched pulse is highly stable.
基金the University of Malaya for the research funding under LRGS(2015)NGOD/UM/KPT,RU007/2015,and GA010-2014(Professor Ulung)
文摘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 1034.7and 1039.0 nm, with a maximum pulse energy of 2.0 n J, 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.
