We report a 31.2 W cw diode-pumped cryogenic Ho(0.4at.%),Tm(4at.%):GdVO4 laser in a dual-crystal cavity.The pumping sources are two fiber-coupled laser diodes with a fiber core diameter of 0.4 mm,both of which can sup...We report a 31.2 W cw diode-pumped cryogenic Ho(0.4at.%),Tm(4at.%):GdVO4 laser in a dual-crystal cavity.The pumping sources are two fiber-coupled laser diodes with a fiber core diameter of 0.4 mm,both of which can supply 42W near 802nm.With an incident pump power of 70.3W at 802.4nm,a cw output power of 31.2 W at 2.05 μm is attained,corresponding to an optical-to-optical conversion efficiency of 44.4%.The M2 factor is measured as ~1.3 under an output power of 20 W.展开更多
We report on the acousto-optic Q-switched operation of a Ho:YAP laser double-passed pumped by an all-fiber Tm-doped fiber laser.The output characteristics of the Ho:YAP laser are studied at pulse repetition frequencie...We report on the acousto-optic Q-switched operation of a Ho:YAP laser double-passed pumped by an all-fiber Tm-doped fiber laser.The output characteristics of the Ho:YAP laser are studied at pulse repetition frequencies of 1,2,5 and 10 kHz.The shortest pulse width,the maximum pulse energy and the highest peak power are measured to be 17 ns,1.71 mJ and 71.25 kW,respectively.The output wavelength is centered at 2115.96 nm with a bandwidth of about 1.5 nm.The beam quality factor M^(2)=2.41±0.03 at the output power of 3.54 W was measured by using the traveling knife-edge method.展开更多
We report a 22.3 W cw diode-pumped cryogenic Ho(0.5at.%),Tm(at.5%):GdVO_(4) laser at a wavelength of 2.05µm.It is pumped by two fiber−coupled laser diodes with a fiber core diameter of 0.4 mm,both of which provid...We report a 22.3 W cw diode-pumped cryogenic Ho(0.5at.%),Tm(at.5%):GdVO_(4) laser at a wavelength of 2.05µm.It is pumped by two fiber−coupled laser diodes with a fiber core diameter of 0.4 mm,both of which provide 42 W pump power near 802 nm.A cw output power of 22.3 W was obtained at the pump power of 51.0 W,corresponding to an optical-to-optical conversion efficiency of 43.7%when the ratio of the pump beam to oscillating laser beam in the crystal was∼1.33:1.The M^(2) factor was found to be 2.0 under an output power of 16.5 W.展开更多
文摘We report a 31.2 W cw diode-pumped cryogenic Ho(0.4at.%),Tm(4at.%):GdVO4 laser in a dual-crystal cavity.The pumping sources are two fiber-coupled laser diodes with a fiber core diameter of 0.4 mm,both of which can supply 42W near 802nm.With an incident pump power of 70.3W at 802.4nm,a cw output power of 31.2 W at 2.05 μm is attained,corresponding to an optical-to-optical conversion efficiency of 44.4%.The M2 factor is measured as ~1.3 under an output power of 20 W.
文摘We report on the acousto-optic Q-switched operation of a Ho:YAP laser double-passed pumped by an all-fiber Tm-doped fiber laser.The output characteristics of the Ho:YAP laser are studied at pulse repetition frequencies of 1,2,5 and 10 kHz.The shortest pulse width,the maximum pulse energy and the highest peak power are measured to be 17 ns,1.71 mJ and 71.25 kW,respectively.The output wavelength is centered at 2115.96 nm with a bandwidth of about 1.5 nm.The beam quality factor M^(2)=2.41±0.03 at the output power of 3.54 W was measured by using the traveling knife-edge method.
文摘We report a 22.3 W cw diode-pumped cryogenic Ho(0.5at.%),Tm(at.5%):GdVO_(4) laser at a wavelength of 2.05µm.It is pumped by two fiber−coupled laser diodes with a fiber core diameter of 0.4 mm,both of which provide 42 W pump power near 802 nm.A cw output power of 22.3 W was obtained at the pump power of 51.0 W,corresponding to an optical-to-optical conversion efficiency of 43.7%when the ratio of the pump beam to oscillating laser beam in the crystal was∼1.33:1.The M^(2) factor was found to be 2.0 under an output power of 16.5 W.
