Title :
All-optical switching in an angled-grating semiconductor Bragg amplifier
Author :
Franke, Mira A. ; Winful, Herbert G.
Author_Institution :
Appl. Phys. Program, Michigan Univ., Ann Arbor, MI, USA
fDate :
7/1/1999 12:00:00 AM
Abstract :
We propose an all-optical switching element based on forward Bragg diffraction in a periodically corrugated semiconductor laser amplifier. The device geometry is similar to that of an angled-grating distributed-feedback (/spl alpha/-DFB) laser except that there is no reflective feedback. Light induced changes in the refractive index cause the output to switch from a cross state to a bar state with input power levels of only a few milliwatts.
Keywords :
Bragg gratings; coupled mode analysis; optical beam splitters; optical switches; refractive index; semiconductor optical amplifiers; semiconductor switches; all-optical switching; all-optical switching element; angled-grating distributed-feedback laser; angled-grating semiconductor Bragg amplifier; bar state; cross state; device geometry; forward Bragg diffraction; input power level; laser output; light induced changes; periodically corrugated semiconductor laser amplifier; reflective feedback; refractive index; Diffraction; Distributed feedback devices; Gratings; Laser beams; Laser feedback; Optical control; Optical feedback; Power semiconductor switches; Semiconductor lasers; Semiconductor optical amplifiers;
Journal_Title :
Photonics Technology Letters, IEEE
