High-brightness, rapidly-tunable Cr: ZnSe lasers

Compact and tunable mid-infrared source based on a 2 μm dual-wavelength KTiOPO 4 intracavity optical parametric oscillator

“…Optical parameter sources including optical parametric oscillation, optical parametric generation, and difference-frequency generation (DFG) have many advantages such as large tuning range covering 3-19 µm, watt-level high repetition output, high energy pulse output and compact tabletop structure. In 1998, Mennerat and Kupecek [7] realised a 10 mJ Mid-IR pulse output using DFG in CdSe crystal; In 1999, Vodopyanov [6] obtained 3-19 µm Mid-IR radiation using optical parametric generation in GaSe crystal; Recently, Zakel et al [10] achieved Mid-IR radiation with an average power of 1.1 W and tuning range of 8.2-8.8 µm by a CdSe optical parametric oscillation.…”

Electronic Wavelength Tuning of Tunable Laser with Acousto-Optic Tunable Filter

“…As a result, rapid and random wavelength tuning by a computer program was successfully demonstrated over a wide wavelength region from 680 to 1053 nm. 8) After that, dual-wavelength oscillations, 9) short-pulse generation, 10) the extension of the wavelength range, and spectroscopic applications 11) have been reported. However, in these works, details of the AOTF design such as diffraction efficiency, bandwidth and the thermal stability of the wavelength used for the tuning element of lasers have not been described.…”

Diode-pumped Q-switched Tm:YAP laser with a pump recycling scheme

“…Here, 2-µ m Q-switched lasers were very attractive and necessary sources for optical parametric oscillators (OPOs) and solid-state lasers further in the mid-infrared spectral region [2][3][4]. The rare-earth ion Tm 3+ doped laser materials were emerging as interesting active media for the 2-µ m region due to the possibility of pumping directly by a high-power laser diode emitting at around 800 nm [5][6][7][8].…”