20 February 2017 Multi-wavelength mid-IR light source for gas sensing
Author Affiliations +
Proceedings Volume 10110, Photonic Instrumentation Engineering IV; 101100P (2017) https://doi.org/10.1117/12.2249126
Event: SPIE OPTO, 2017, San Francisco, California, United States
Abstract
Cost effective multi-wavelength light sources are key enablers for wide-scale penetration of gas sensors at Mid-IR wavelength range. Utilizing novel Mid-IR Si-based photonic integrated circuits (PICs) filter and wide-band Mid-IR Super Luminescent Light Emitting Diodes (SLEDs), we show the concept of a light source that covers 2.5…3.5 μm wavelength range with a resolution of <1nm. The spectral bands are switchable and tunable and they can be modulated. The source allows for the fabrication of an affordable multi-band gas sensor with good selectivity and sensitivity. The unit price can be lowered in high volumes by utilizing tailored molded IR lens technology and automated packaging and assembling technologies. The status of the development of the key components of the light source are reported. The PIC is based on the use of micron-scale SOI technology, SLED is based on AlGaInAsSb materials and the lenses are tailored heavy metal oxide glasses fabricated by the use of hot-embossing. The packaging concept utilizing automated assembly tools is depicted. In safety and security applications, the Mid-IR wavelength range covered by the novel light source allows for detecting several harmful gas components with a single sensor. At the moment, affordable sources are not available. The market impact is expected to be disruptive, since the devices currently in the market are either complicated, expensive and heavy instruments, or the applied measurement principles are inadequate in terms of stability and selectivity.
Conference Presentation
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Pentti Karioja, Pentti Karioja, Teemu Alajoki, Teemu Alajoki, Matteo Cherchi, Matteo Cherchi, Jyrki Ollila, Jyrki Ollila, Mikko Harjanne, Mikko Harjanne, Noora Heinilehto, Noora Heinilehto, Soile Suomalainen, Soile Suomalainen, Jukka Viheriälä, Jukka Viheriälä, Nouman Zia, Nouman Zia, Mircea Guina, Mircea Guina, Ryszard Buczyński, Ryszard Buczyński, Rafał Kasztelanic, Rafał Kasztelanic, Ireneusz Kujawa, Ireneusz Kujawa, Tomi Salo, Tomi Salo, Sami Virtanen, Sami Virtanen, Paweł Kluczyński, Paweł Kluczyński, Håkon Sagberg, Håkon Sagberg, Marcin Ratajczyk, Marcin Ratajczyk, Przemyslaw Kalinowski, Przemyslaw Kalinowski, } "Multi-wavelength mid-IR light source for gas sensing", Proc. SPIE 10110, Photonic Instrumentation Engineering IV, 101100P (20 February 2017); doi: 10.1117/12.2249126; https://doi.org/10.1117/12.2249126
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