Energy scaling of nanosecond gain-switched Cr 2+

In this paper, we report record nanosecond output energies of gain-switched CrZnSe lasers pumped by Q-switched CrTmHoYAG 100 ns at 2.096 microns and Raman shifted NdYAG lasers 7 ns at 1.906 microns. In these experiments we used Brewster cut CrZnSe gain elements with a chromium concentration of 8x1018cm-3. Under CrTmHoYAG pumping, the first CrZnSe laser demonstrated 3.1 mJ of output energy, 52 slope efficiency and 110 nm linewidth centered at a wavelength of 2.47 microns. Maximum output energy of the second CrZnSe laser reached 10.1 mJ under H2 Raman shifted NdYAG laser pumping. The slope efficiency estimated from the input-output data was 47%

Cr:Zns Laser-Pumped Subharmonic Gaas Opo With An Instantaneous Bandwidth 3.6-5.6 Μm

High-power (llOmW] mid-IR output suitable for ultra-broadband frequency comb generation was produced in a low-threshold (20mW] subharmonic GaAs optical parametric oscillator that was synchronously pumped (175MHz) by a compact 0.5-W femtosecond Cr:ZnS (2.38 μm) oscillator. © OSA 2015

Cr:Zns Laser-Pumped Subharmonic Gaas Optical Parametric Oscillator With The Spectrum Spanning 3.6-5.6 Μm

Using a subharmonic optical parametric oscillator (OPO) based on orientation-patterned GaAs, we produced a broadband instantaneous output that spans 3.6-5.6 μm at 50-dB level (4.4-5.2 ìm at 3 dB level), has 110 mW of average power, and is suitable for producing wideband-frequency combs in the mid-infrared. The OPO was synchronously pumped by a compact Kerr-lens mode-locked femtosecond Cr:ZnS oscillator with the central wavelength 2.38 μm and pulse repetition frequency 175 MHz

Cr:Zns Laser-Pumped Subharmonic Gaas Opo With An Instantaneous Bandwidth 3.6-5.6 Μm

High-power (110mW) mid-IR output suitable for ultra-broadband frequency comb generation was produced in a low-threshold (20mW) subharmonic GaAs optical parametric oscillator that was synchronously pumped (175MHz) by a compact 0.5-W femtosecond Cr:ZnS (2.38μm) oscillator

Subharmonic Gaas Opo Pumped By A Cr:Zns Laser With An Instantaneous Bandwidth 3.6-5.6 Μm

High-power (110 mW) mid-IR output suitable for producing ultra-broadband frequency combs in the mid-infrared portion of the spectrum was produced in a subharmonic optical parametric oscillator (OPO) based on orientation patterned GaAs. The OPO was synchronously pumped by a compact 0.5-W femtosecond Cr:ZnS oscillator with the central wavelength 2.38 μm at pulse repetition frequency 175 MHz