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Reduced lasing thresholds in GeSn microdisk cavities with defect management of the optically active region
Anas Elbaz, Riazul Arefin, Emilie Sakat +20
GeSn alloys are nowadays considered as the most promising materials to build Group IV laser sources on silicon (Si) in a full complementary metal oxide semiconductor-compatible app…
Influence of optical feedback on harmonic pulsating solutions of long-cavity mode-locked VECSELs
A. Bartolo, T. Seidel, N. Vigne +8
We analyse the effect of optical feedback on the dynamics of external-cavity mode-locked semiconductor lasers operated in the long cavity regime. Depending on the ratio between the…
Optimization of laser dynamics for active stabilization of DF--VECSELs dedicated to cesium CPT clocks
Grégory Gredat, Hui Liu, Jérémie Cotxet +5
We report the implementation and performance of a double servo-loop for intensity and phase-difference active stabilization of a dual-frequency vertical external--cavity surface-em…
Fiber-integrated microcavities for efficient generation of coherent acoustic phonons
O. Ortiz, F. Pastier, A. Rodriguez +9
Coherent phonon generation by optical pump-probe experiments has enabled the study of acoustic properties at the nanoscale in planar heterostructures, plasmonic resonators, micropi…
Semiconductor quantum plasmons for high frequency thermal emission
Angela Vasanelli, Yanko Todorov, Baptiste Dailly +5
Plasmons in heavily doped semiconductor layers are optically active excitations with sharp resonances in the 5-15 um wavelength region set by the doping level and the effective mas…
Slow propagation of 2 GHz acoustical waves in a suspended GaAs on insulator phononic waveguide
Giuseppe Modica, Rui Zhu, Robert Horvath +3
Optoelectronic oscillators have dominated the scene of microwave oscillators in the last few years thanks to their great performances regarding frequency stability and phase noise.…