Abstract
A time-domain large-signal model is developed to investigate nonlinear interactions between picosecond optical pulses and semiconductor active waveguide devices, including distributed-feedback and Fabry-Perot lasers, as well as optical amplifiers. The model predicts interesting phenomena such as transform-limited superluminal transmission and directional DFB amplification. The influence of electrical carrier dynamics and feedback from a Bragg grating and/or reflecting facets on output pulses are demonstrated. Moreover, it is found that the time delay of the reflected and transmitted pulses is strongly related to the Bragg grating parameters, as well as to carrier dynamics. As a consequence, careful attention should be paid when the notions of group refractive index and group velocity are to be used in device modeling.
Original language | English |
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Pages (from-to) | 1329-1336 |
Number of pages | 8 |
Journal | IEEE Journal of Quantum Electronics |
Volume | 37 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Oct 2001 |
Externally published | Yes |
Keywords
- Bragg grating
- Pulse shaping
- Semiconductor waveguides
- Simulations
- Ultrashort pulse
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering