Title :
2.5-Gb/s modulated widely tunable laser using an electroabsorption modulated DFB array and MEMS selection
Author :
Ton, D. ; Yoffe, G.W. ; Heanue, J.F. ; Emanuel, M.A. ; Zou, S.Y. ; Kubicky, J. ; Pezeshki, B. ; Vail, E.C.
Author_Institution :
Santur Corp., Fremont, CA, USA
fDate :
6/1/2004 12:00:00 AM
Abstract :
A widely tunable 2.5-Gb/s modulated source using a distributed feedback (DFB) array and electroabsorption (EA) modulators is demonstrated. In order to overcome the optical bandwidth limitation of a single modulator, a 12 element array of modulators with varying bandgaps is integrated with a corresponding DFB array at different wavelengths. Selective area growth enables the bandgap of the modulators to be finely adjusted at a 10-μm pitch. A microelectromechanical system mirror selects the output of a particular EA and couples the light into fiber. Uniform high-speed modulation could be obtained in a butterfly package over a 36-nm tuning range.
Keywords :
distributed feedback lasers; electro-optical modulation; electroabsorption; laser arrays; laser mirrors; laser tuning; micromechanical devices; micromirrors; optical communication equipment; optical design techniques; optical fabrication; packaging; 2.5 Gbit/s; DFB array; MEMS selection; bandgaps; butterfly package; distributed feedback array; electroabsorption modulation; microelectromechanical system; modulated widely tunable laser; optical bandwidth limitation; Distributed feedback devices; High speed optical techniques; Integrated optics; Laser feedback; Micromechanical devices; Optical arrays; Optical feedback; Optical modulation; Photonic band gap; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.827123
