Title :
Sub-picosecond gain dynamic in highly index-guided tapered-waveguide laser diode optical amplifiers
Author :
Tan, P.W. ; Ghafouri-Shiraz, H.
Author_Institution :
Sch. of Electron. & Electr. Eng., Birmingham Univ., UK
fDate :
8/1/1999 12:00:00 AM
Abstract :
The sub-picosecond gain dynamic in a highly index-guided tapered-waveguide laser diode amplifier is studied. The analysis is based on a set of rate equations for the carrier density N and carrier temperature T, where the effects of lateral distributions of both N and Tare considered. It is found that both N and T have significant effects on the gain dynamic of the tapered-waveguide laser diode amplifier. The gain saturation of the tapered-waveguide amplifier for both 20 ps and 200 fs pulses is also calculated
Keywords :
high-speed optical techniques; laser theory; optical saturation; refractive index; semiconductor device models; semiconductor optical amplifiers; waveguide lasers; 20 ps; 200 fs; carrier density; carrier temperature; fs pulses; gain saturation; highly index-guided tapered-waveguide laser diode optical amplifiers; lateral distributions; set of rate equations; sub-picosecond gain dynamic; tapered-waveguide laser diode amplifier;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19990605
