Title :
A 24-channel wavelength-selectable Er-fiber ring laser with intracavity waveguide-grating-router and semiconductor Fabry-Perot filter
Author :
Liou, K.Y. ; Koren, U. ; Chen, C. ; Burrows, E.C. ; Dreyer, K. ; Sulhoff, J.W.
Author_Institution :
AT&T Bell Lab., Crawford Hill Lab., Holmdel, NJ, USA
Abstract :
We present an Er-doped fiber ring laser that operates with a single wavelength, which is selectable from any channel wavelength of a 24-channel silica waveguide grating router. A semiconductor Fabry-Perot optical amplifier is used as an intracavity narrow-band filter to stabilize laser oscillation in a single axial mode. We show by experiment and a theoretical model that the long cavity mode buildup time of the Er-fiber laser and multiple passes through the intracavity filter can effectively stabilize the laser output in a single mode. An electroabsorption modulator is used to modulate the laser output at a selected wavelength. Error-free performance is demonstrated, we believe for the first time, for a waveguide grating router fiber laser at 5 Gb/s.
Keywords :
Fabry-Perot resonators; diffraction gratings; electro-optical modulation; electroabsorption; erbium; fibre lasers; laser frequency stability; optical communication equipment; optical waveguide filters; ring lasers; telecommunication network routing; 24-channel silica waveguide grating router; 24-channel wavelength-selectable Er-fiber ring laser; 5 Gbit/s; channel wavelength; electroabsorption modulator; error-free performance; intracavity narrow-band filter; intracavity waveguide-grating-router; laser output; selected wavelength; semiconductor Fabry-Perot filter; semiconductor Fabry-Perot optical amplifier; single axial mode; single wavelength; stabilize laser oscillation; waveguide grating router fiber laser; Fiber gratings; Fiber lasers; Laser modes; Laser stability; Laser theory; Optical waveguides; Ring lasers; Semiconductor lasers; Semiconductor optical amplifiers; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
