Open AccessLow power‐consumption mid‐infrared distributed feedback quantum cascade laser for gas‐sensing application
Author(s) -
Hashimoto J.,
Yoshinaga H.,
Mori H.,
Tsuji Y.,
Murata M.,
Kato T.,
Ekawa M.,
Iguchi Y.,
Katsuyama T.
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.4269
Subject(s) - quantum cascade laser , cascade , optoelectronics , wavelength , laser , power consumption , distributed feedback laser , materials science , power (physics) , optics , continuous wave , infrared , physics , chemistry , chromatography , quantum mechanics
A low power‐consumption distributed feedback quantum cascade laser (DFB‐QCL) is developed for gas‐sensing in 7 μm wavelength region. The threshold power‐consumption was as low as 0.93 W with the sufficient output power of 20 mW at 20°C under continuous‐wave condition. In addition, it maintained a single‐mode operation between −40 and 50°C without a mode‐hopping, leading to a total wavelength shift of 66 nm. This DFB‐QCL would be suitable for gas‐sensing application.