Enhanced output power for phase-matched second-harmonic generation at 10.6 μm in a ZnGeP_2 crystal

Efficient harmonic generation of second,

Efficient harmonic generation of second, third, and fourth orders from Fourier-transform-limited CO2 laser beam at 10.6 μm in GaSe crystals

✍ Yi Jiang; Yujie J. Ding 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 266 KB

Second, 3rd, and 4th order harmonics from a Fourier-transform-limited nanosecond CO 2 laser beam at 10.6 lm were efficiently generated within one or two GaSe crystals. The peak output powers were determined to be 443, 23, and 2 W, respectively, corresponding to conversion efficiencies of 3.0%, 0.13%