Thermally Tunable Quantum Cascade Laser With an External Germanium-on-SOI Distributed Bragg Reflector
| Autor: | Stefan Hugger, Christian Schilling, Ana Radosavljević, Sanja Radosavljevic, Ralf Ostendorf, Bart Kuyken, Gunther Roelkens |
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| Přispěvatelé: | Publica |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry quantum cascade laser Physics::Optics mid-infrared Laser Distributed Bragg reflector Waveguide (optics) Atomic and Molecular Physics and Optics law.invention Germanium-on-SOI Resonator Wavelength Cascade law distributed Bragg reflector Optoelectronics Electrical and Electronic Engineering business Quantum cascade laser Diffraction grating |
| Zdroj: | IEEE Journal of Selected Topics in Quantum Electronics. 25:1-7 |
| ISSN: | 1558-4542 1077-260X |
| Popis: | 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 $\mu \rm m$ wavelength laser, operating in pulsed mode at room temperature, is continuously tuned over 50 nm. |
| Databáze: | OpenAIRE |
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