Gasb-Based 2.55 Mu M External Cavity Diode Lasers Employing Ruled Diffraction Gratings And External Silicon Photonics Vernier Reflectors

Samu-Pekka Ojanen,Jukka Viheriala,Matteo Cherchi,Nouman Zia,Eero Koivusalo,Pentti Karioja,Mircea Guina

european quantum electronics conference（2019）

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摘要

Important environmental gases, such as H ₂ S, C ₂ H ₄ , CH ₄ , CO, CO ₂ , N ₂ O, and H ₂ O, have strong absorption lines in the 2-3 μm wavelength range. Tunable external cavity diode lasers (ECDLs) present an attractive option for the spectroscopic detection of these gases, because of their broad tuning range, and the possibility to achieve high spectral resolution and sensitivity, due to much higher spectral power density compared to broadband sources.

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关键词

spectral power density,spectral resolution,spectroscopic detection,external silicon photonics vernier reflectors,GaSb-based external cavity diode lasers,absorption lines,environmental gases,diffraction gratings,tunable external cavity diode lasers,wavelength 2.0 mum to 3.0 mum,GaSb,Si

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