Distributed-feedback quantum cascade laser emitting at 3.2 mu m

作者：Wolf Johanna M^*; Bismuto Alfredo; Beck Mattias; Faist Jerome

来源：Optics Express, 2014, 22(2): 2111-2118.

DOI：10.1364/OE.22.002111

In this work, we present GaInAs/AlAs/AlInAs quantum cascade lasers emitting from 3.2 to 3.4 mu m. Single-mode emission is obtained using buried distributed-feedback gratings fabricated using standard deep-UV contact lithography. This technique can easily be transferred to industrial production. Devices with single-mode emission down to 3.19 mu m were achieved with peak power of up to 250 mW at -20 degrees C. A tuning range of 11 cm(-1) was obtained by changing the device temperature between -30 degrees C and 20 degrees C.

• 出版日期2014-1-27