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A review will be given on the latest development of 1.55 µm quantum dot lasers. Static and dynamic properties of short cavity ridge waveguide lasers will be presented exhibiting data rates up to 22 GBit/s. The impact of structural and operational parameters will be discussed and compared with a simulation model. High-resolution linewidth measurements of distributed feedback lasers indicate with <...
Red, green and blue distributed feedback lasers based on dense colloidal CdSe quantum dot thin films were optically pumped in quasi-steady state. The red lasers showed 32% internal quantum efficiency and 400 µW output power.
Generation of tunable millimeter-wave (MMW) and Terahertz (THz) signals from 117 GHz to 954 GHz is experimentally demonstrated with a 1310 nm Quantum Dot Distributed Feedback laser subject to single beam optical injection.
We present a truxene-based distributed feedback laser sensor and demonstrate its sensing capabilities. Results for bulk refractive index sensing, detection of nano-layer adsorption at the laser surface and specific biomolecule sensing are shown.
We present our work on developing a new class of photonic devices realized by selective coupling of degenerate modes in microring resonators using gratings. Engineering the reflection spectrum and the radiation quality factor are demonstrated.
Distributed feedback lasers with an integrated thin-film of palladium have been fabricated and measured. Palladium's refractive index changes when exposed to hydrogen gas, producing a wavelength redshift and power increase proportional to hydrogen concentration.
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