Design of a Smartphone Plastic Optical Fiber Chemical Sensor for Hydrogen Sulfide Detection

Alimzhan Sultangazin, Janysbek Kusmangaliyev, Arman Aitkulov, Dana Akilbekova, Massimo Olivero, Daniele Tosi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


We present a low-cost, handheld plastic optical fiber (POF) sensor for hydrogen sulfide (H2S) detection integrated onto a smartphone. The sensor uses smartphone flashlight as a source and camera as a pixel-based intensity detector. The POF is interconnected to the smartphone with a 3-D-printed connector on both source/detector sides. The sensing mechanism is embedded in the fiber link, making the system an all-fiber smartphone architecture. A mobile application handles data acquisition on the Android operative system. The sensor is functionalized for H2S detection through silver deposition on the POF outer surface. Experiments demonstrate the feasibility of the sensor system as the presence of H2S is successfully measured through an increase of optical losses through the POF link. This cost-effective, scalable, and compact sensor is promising for application in environmental sensing.
Original languageEnglish
Pages (from-to)6935-6940
Number of pages6
JournalIEEE Sensors Journal
Issue number21
Publication statusPublished - Nov 1 2017

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