Gain bandwidth characterization of surface-emitting quantum well laser gain structures for femtosecond operation

Gain assisted surface plasmon polariton in quantum wells structures.

In this paper we propose a structure to compensate the propagation loss of surface plasmons by using multiple quantum wells as a gain medium. We analyze the required gain for lossless surface plasmon propagation for different thicknesses and widths of the metallic guiding layer. We study the effects of the gain layers and a finite height superstrate on the surface plasmon mode and its propagati...

Femtosecond Gain-Index Coupling

New theory on measuring gain and index changes in femtosecond pump probe studies suggests a spectral artifact is present which may have obscured the ultrafast response in previous studies of InGaAsP laser diode amplifiers. A femtosecond heterodyne pump-probe technique is implemented using an Erbium-doped stretched-pulse modelocked fiber laser centered at 1.55 gm and used to obtain simultaneous ...

Quantum Dot Gain-lever Laser Diode By

OF THESIS Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science Electrical Engineering The University of New Mexico Albuquerque, New Mexico

Ultrafast gain and index dynamics of quantum dash structures emitting at 1.55 m

Femtosecond synchronously in-well pumped vertical-external-cavity surface-emitting laser.

We demonstrate the first synchronously in-well pumped vertical-external-cavity surface-emitting laser (VECSEL). Depending on the cavity mismatch, laser pulses with a duration from 1 ps to 7 ps at a repetition rate of 76 MHz were generated directly from the laser at 860 nm. The application of extra-cavity pulse compression further shortened the pulse to a duration of 210 fs providing a peak powe...