Dong, LeiTittel, Frank K.Li, ChunguangSanchez, Nancy P.Wu, HongpengZheng, ChuantaoYu, YajunSampaolo, AngeloGriffin, Robert J.2016-06-272016-06-272016Dong, Lei, Tittel, Frank K., Li, Chunguang, et al.. "Compact TDLAS based sensor design using interband cascade lasers for mid-IR trace gas sensing." <i>Optics Express,</i> 24, no. 6 (2016) The Optical Society: A528-A535. http://dx.doi.org/10.1364/OE.24.00A528.https://hdl.handle.net/1911/90800Two compact TDLAS sensor systems based on different structural optical cores were developed. The two optical cores combine two recent developments, gallium antimonide (GaSb)-based ICL and a compact multipass gas cell (MPGC) with the goal to create compact TDLAS based sensors for the mid-IR gas detection with high detection sensitivity and low power consumption. The sensors achieved minimum detection limits of ~5 ppbv and ~8 ppbv, respectively, for CH4 and C2H6 concentration measurements with a 3.7-W power consumption.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlehttp://dx.doi.org/10.1364/OE.24.00A528