Time scale dependent dynamics in InAs/ InP based quantum dot lasers and amplifiers

Seminar
Optics Seminar
QUEST Center event
No
Speaker
Gadi Eisenstein, Electrical Engineering Department and Russel Berrie Nanotechnology Institute
Date
22/02/2017 - 15:00 - 14:00Add to Calendar 2017-02-22 14:00:00 2017-02-22 15:00:00 Time scale dependent dynamics in InAs/ InP based quantum dot lasers and amplifiers InAs/InP base quantum dots constitute the gain medium of the most advanced semiconductor lasers and amplifiers. Their superb properties stem from fundamental reasons and major advances in material growth and nano fabrication. This talk highlights the dynamical properties of these lasers which have three important time scales: Several ps which determines the temperature insensitive modulation characteristics where record speeds have been demonstrated. 1-2 ps which determines the carrier relaxation dynamics into the quantum dots and the gain nonlinearities. Sub 2 fs which is shorter than the coherence time at room temperature and allows for quantum coherent interactions using practical optical amplifiers. A series of experiments and various models for each of the time scales will be presented and the impact of further developments in quantum dot technologies will be discussed. Nano - 9th Floor Seminar room המחלקה לפיזיקה physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Nano - 9th Floor Seminar room
Abstract

InAs/InP base quantum dots constitute the gain medium of the most advanced semiconductor lasers and amplifiers. Their superb properties stem from fundamental reasons and major advances in material growth and nano fabrication.

This talk highlights the dynamical properties of these lasers which have three important time scales:

  • Several ps which determines the temperature insensitive modulation characteristics where record speeds have been demonstrated.
  • 1-2 ps which determines the carrier relaxation dynamics into the quantum dots and the gain nonlinearities.
  • Sub 2 fs which is shorter than the coherence time at room temperature and allows for quantum coherent interactions using practical optical amplifiers.

A series of experiments and various models for each of the time scales will be presented and the impact of further developments in quantum dot technologies will be discussed.

תאריך עדכון אחרון : 18/02/2017