New Publication on Optics and Laser Technology Journal

The PolySense team has just published  a new article on Optics and Laser Technology Journal (IF 5) reporting on an optical system embedded within a sealed metallic cylinder containing an aspheric micro-lens to couple a single-mode interband cascade laser with an indium fluoride glass fiber. The fiber output is plug & play connected to an acoustic detection module of a quartz-enhanced photoacoustic sensor (QEPAS) equipped with a fiber port, avoiding the use of any freespace optics, from the source to the detection module. To demonstrate the operability, three all-fiber-coupled QEPAS sensors were realized for detection of CH4, CO2 and NO reaching sub-ppm ultimate detection limits with a signal integration time of 100 ms.

The following link provides access to the article:

http://polysense.poliba.it/wp-content/uploads/2024/04/Fiber-coupled-QEPAS_JOLT_2024.pdf

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