Title :
Modal and modulation characteristics of multimode VCSELs under external feedback for very short reach communications
Author :
Gross, Y. ; Lasri, J. ; Orenstein, M.
Author_Institution :
Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel
Abstract :
We report the characteristics of VCSELs while experiencing optical feedback i.e. due to an unisolated coupling to multimode fibers. The experiments and modeling with controlled feedback resulted in a span of phenomena - starting from modified CW lasing, distorted modal distribution as well as flattened small signal modulation response. The connection between the results and the internal laser parameters, especially the nonlinearity, are examined
Keywords :
electro-optical modulation; frequency response; laser feedback; laser modes; optical transmitters; semiconductor lasers; surface emitting lasers; 1 to 10 Gbit/s; controlled feedback; distorted modal distribution; external feedback; flattened small signal modulation response; internal laser parameters; modal characteristics; modified CW lasing; modulation characteristics; multimode VCSEL; nonlinearity; optical communication; optical feedback; optical transmitters; unisolated multimode fiber coupling; very short reach communications; Distributed feedback devices; Fiber lasers; Frequency; Laser feedback; Laser noise; Laser theory; Optical distortion; Optical feedback; Polarization; Vertical cavity surface emitting lasers;
Conference_Titel :
Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE
Conference_Location :
Rio Grande
Print_ISBN :
0-7803-5947-X
DOI :
10.1109/LEOS.2000.894141
