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A tunable external cavity laser operating at excited states of bimodal-sized quantum-dot
摘要： In this paper, a tunable external cavity diode laser (ECDL) based on the first excited states of two independent quantum dot (QD) ensemble has been demonstrated. The device exhibits stabilized lasing with high power of 120 mW. We attribute the excellent output characteristics of the QD ECDL to carrier radiation recombination in high energy states, which has higher degeneracy than low energy states and can accommodate more carriers. The linewidth of ECDL is less than 0.2 nm, which is also much narrower than most of QD ECDLs as reported. Preliminary discussion attributes the spectra feature to the lower QD density and independent carrier transitions. The tunable range is 28.9 nm (970.1 ~ 999 nm) and the wavelength shift with the injection current is 0.7 nm/A.
关键词： tunable external cavity laser,bimodal-sized,quantum-dot,excited states
更新于2025-11-28 14:23:57
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[IEEE 2019 SBFoton International Optics and Photonics Conference (SBFoton IOPC) - Sao Paulo, Brazil (2019.10.7-2019.10.9)] 2019 SBFoton International Optics and Photonics Conference (SBFoton IOPC) - High-Performance and Small Form-Factor Tunable Lasers for High-Capacity Telecom Systems
摘要： In this work, an overview of requirements for compact optical modules and devices is presented, focusing on optical laser sources. Regarding coherent applications, the laser must have narrow linewidth, while, at the same time, be compact and present low power consumption, targeting C-form factor pluggable (CFP) modules. Latest results obtained by our group on laser development are presented, showing that the External-Cavity Laser (ECL) can fulfill the requirements for this application.
关键词： C-form factor modules,coherent optical communication,external cavity laser,micro-ITLA,narrow-linewidth laser
更新于2025-09-16 10:30:52
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[IEEE 2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) - St. Petersburg, Russia (2019.10.17-2019.10.18)] 2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) - Distortion Analysis of Interferometric Signal with Auxiliary Emission Modulation in Semiconductor Laser
摘要： The results of analysis of distortion of interferometric signal of a semiconductor laser with the current modulation are presented. The mathematical model of the interferometric signal was refined based on experimental data. Measurements were performed for harmonic and triangular auxiliary modulation, and the effect of laser thermal stabilization on the modulation of the interferometric signal was studied.
关键词： phase modulation,external cavity laser,thermal stabilization,distributed feedback laser,distortion of interferometric signal
更新于2025-09-16 10:30:52
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[IEEE 2019 21st International Conference on Transparent Optical Networks (ICTON) - Angers, France (2019.7.9-2019.7.13)] 2019 21st International Conference on Transparent Optical Networks (ICTON) - Cavity Resonator Integrated Filter (CRIGF) Based External Cavity Laser in a Butterfly Package
摘要： Cavity Resonator Grating Filters are narrowband reflective spectral filters that exhibit high efficiency and high angular acceptance, with large optical alignment tolerances. We show that an external cavity diode laser setup with single mode emission can be integrated in a medium size butterfly package using these filters.
关键词： grating filters,semi-conductor laser,external cavity laser,packaging
更新于2025-09-16 10:30:52