Title :
Extremely fast high-gain and low-current SOA by optical speed-up at transparency
Author :
Dupertuis, M.A. ; Pleumeekers, J.L. ; Hessler, T.P. ; Selbmann, P.E. ; Deveaud, B. ; Dagens, B. ; Emery, J.Y.
Author_Institution :
Inst. for Micro- and Optoelectron., Swiss Federal Inst. of Technol., Lausanne, Switzerland
Abstract :
We propose a new configuration for semiconductor optical amplifiers (SOAs), called optical speed-up at transparency (OSAT), which allows to speed up the gain recovery of SOAs and their saturation power without sacrificing the gain, nor increasing the applied current. The proposed configuration is particularly well-suited for high-speed WDM or OTDM applications. It consists of an optical CW-signal injected at the transparency point of the SOA. This setup is potentially integrable on a single chip, and still relatively flexible once the device is realized.
Keywords :
carrier density; high-speed optical techniques; optical communication equipment; optical saturation; semiconductor optical amplifiers; time division multiplexing; transparency; wavelength division multiplexing; applied current; gain recovery; high-gain SOA; high-speed OTDM applications; high-speed WDM applications; low-current SOA; optical CW-signal; optical speed-up; semiconductor optical amplifier; single chip; transparency; transparency point; Charge carrier density; High speed optical techniques; Nonlinear optical devices; Nonlinear optics; Optical devices; Optical saturation; Optical wavelength conversion; Semiconductor optical amplifiers; Stimulated emission; Ultraviolet sources;
Journal_Title :
Photonics Technology Letters, IEEE
