title: Compact TDLAS based sensor design using interband cascade lasers for mid-IR trace gas sensing.
abstract: Two 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 CH4and C2H6concentration measurements with a 3.7-W power consumption.
authors.forename: Lei
authors.initials: L
authors.lastname: Dong
authors.forename: Frank K
authors.initials: FK
authors.lastname: Tittel
authors.forename: Chunguang
authors.initials: C
authors.lastname: Li
authors.forename: Nancy P
authors.initials: NP
authors.lastname: Sanchez
authors.forename: Hongpeng
authors.initials: H
authors.lastname: Wu
authors.forename: Chuantao
authors.initials: C
authors.lastname: Zheng
authors.forename: Yajun
authors.initials: Y
authors.lastname: Yu
authors.forename: Angelo
authors.initials: A
authors.lastname: Sampaolo
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Griffin