Thermally Tunable Quantum Cascade Laser With an External Germanium-on-SOI Distributed Bragg Reflector

被引：2
作者：
Radosavljevic, Sanja [1 ]
Radosavljevic, Ana [1 ]
Schilling, Christian [2 ]
Hugger, Stefan [2 ]
Ostendorf, Ralf [2 ]
Kuyken, Bart [1 ]
Roelkens, Gunther [1 ]
机构：
[1] Univ Ghent, Dept Informat Technol, Photon Res Grp, Imec, B-9052 Ghent, Belgium
[2] Fraunhofer Inst Appl Solid State Phys IAF, D-79108 Freiburg, Germany
来源：
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2019年 / 25卷 / 06期
基金：
欧洲研究理事会;
关键词：
Quantum cascade lasers; distributed Bragg reflector; Germanium-on-SOI; mid-infrared; WAVE-GUIDE; SILICON; SPECTROSCOPY; RESONATOR; PLATFORM; SI;
D O I：
10.1109/JSTQE.2019.2933784
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Quantum cascade lasers (QCLs) are essential components for mid-infrared optical spectroscopy. Currently, widely tunable QCLs are using an external diffraction grating to tune the laser wavelength. In this paper we present a compact tunable QCL that is thermally tuned by a distributed Bragg reflector (DBR) implemented on a Germanium-on-SOI (Ge-on-SOI) waveguide circuit. The 5.1x mu m wavelength laser, operating in pulsed mode at room temperature, is continuously tuned over 50 nm.
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页数：7
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