TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

High power broadband superluminescent diode for compact gas sensor

Tutkimustuotos: Konferenssiesitys, posteri tai abstrakti

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivumäärä1
DOI - pysyväislinkit
TilaJulkaistu - 27 kesäkuuta 2017
TapahtumaCLEO/Europe-EQEC 2017 - Munich, Saksa
Kesto: 25 kesäkuuta 201729 kesäkuuta 2017

Conference

ConferenceCLEO/Europe-EQEC 2017
MaaSaksa
KaupunkiMunich
Ajanjakso25/06/1729/06/17

Tiivistelmä

Tunable mid-infrared semiconductor light sources are of particular interest for molecular spectroscopy; for example, CO2 and other atmospheric gases have strong absorption lines in this wavelength range. Currently, to detect multiple gases simultaneously one needs several continuous-wave (CW) operated mid-infrared laser diodes (LDs) with wide tuning range. For a miniaturized gas sensing system, a single high power and broadband light source is desired. To this end, we have proposed a novel, programmable/tunable light source for gas detection utilizing broadband superluminescent diode (SLD) and Si-based photonic integrated components [1]. When it comes to light source development, the preferred material system for reaching the 2-3 μm wavelength range is GaSb. Even though the performance of GaSb-based devices [2] are superior to InP-based emitters [3] in this wavelength range, the development of GaSb-based SLD have not been notable until recently [4].