Low-loss wavelength tuning of a mid-infrared Cr2+:ZnSe laser using a Littrow-mounted resonant diffraction grating - Archive ouverte HAL Access content directly
Journal Articles Laser Physics Letters Year : 2011

Low-loss wavelength tuning of a mid-infrared Cr2+:ZnSe laser using a Littrow-mounted resonant diffraction grating

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Abstract

We report the first demonstration of resonantgrating- based laser wavelength tuning in the mid-infrared spectral domain and with Littrow mounting of the grating. We show for a mid-infrared Cr:ZnSe laser that this tuning technique is much more wavelength selective than prism-based tuning, while inducing very low cavity losses (around 2%), which are at least two times smaller than in the case of a standard metal grating. Furthermore, the resonant grating allows tuning the Cr:ZnSe laser over as much as 400 nm around a center wavelength of 2.38 μm. This shows the potential of employing Littrow-mounted resonant diffraction gratings for controlling and tuning the emission wavelength of lasers emitting in the mid-infrared spectral domain and other wavelength regions.

Dates and versions

ujm-00617603 , version 1 (29-08-2011)

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Cite

N. Vermeulen, P. Wasylczyk, S. Tonchev, P. Muys, H. Ottevaere, et al.. Low-loss wavelength tuning of a mid-infrared Cr2+:ZnSe laser using a Littrow-mounted resonant diffraction grating. Laser Physics Letters, 2011, 8 (8), pp.606-612. ⟨10.1002/lapl.201110044⟩. ⟨ujm-00617603⟩
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