Monomode interband cascade lasers at 5.2 μm for nitric oxide sensing
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We demonstrate application-grade monomode distributed feedback (DFB) laser devices with emission wavelength around 5.2 mu m; suitable for nitric oxide sensing. The devices are based on interband cascade laser material that enables continuous wave operation in the midinfrared spectral region when mounted on a standard thermoelectrically cooled TO-style header. With etched vertical sidewall DFB gratings as wavelength selective elements, signal to noise ratios around 30 dB and typical tuning ranges greater than 12 nm were achieved, making the devices suitable for applications based on tunable laser absorption spectroscopy.
Von Edlinger , M , Scheuermann , J , Weih , R , Zimmermann , C , Nähle , L , Fischer , M , Koeth , J , Höfling , S & Kamp , M 2014 , ' Monomode interband cascade lasers at 5.2 μm for nitric oxide sensing ' IEEE Photonics Technology Letters , vol 26 , no. 5 , pp. 480-482 . DOI: 10.1109/LPT.2013.2297447
IEEE Photonics Technology Letters
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This work was supported by the European Union through the WideLase Project under Grant Agreement 318798 within the Seventh Framework Programme.
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