Title :
Peripheral coupled waveguide traveling-wave electroabsorption modulator
Author :
Zhuang, Y. ; Wu, Y. ; Chang, W.S.C. ; Yu, P.K.L. ; Mathai, S. ; Wu, M. ; Tishinin, D. ; Liou, K.Y.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, San Diego, CA, USA
Abstract :
We present the design and preliminary analysis of an efficient and wide bandwidth peripheral coupled waveguide traveling-wave electroabsorption modulator (PCW-TW-EAM), which aims to decouple the optical waveguide and the microwave transmission line. The optical waveguide mode of this device is designed to closely match to a single mode fiber mode for the ease of coupling. The waveguide has presently shown an optical propagation loss of /spl sim/2dB/mm at the modulation wavelength which is essential for wide bandwidth and high modulation efficiency to be achieved in the same design. Simulations indicate that equivalent V/sub /spl pi// less than 1V over a very large bandwidth can be obtained.
Keywords :
electro-optical modulation; electroabsorption; microwave photonics; optical couplers; optical losses; bandwidth; design analysis; microwave transmission line; modulation efficiency; optical decoupling; optical propagation loss; optical waveguide; peripheral coupled waveguide traveling-wave electroabsorption modulator; single mode fiber coupling; Bandwidth; Microwave devices; Optical coupling; Optical design; Optical devices; Optical fiber devices; Optical modulation; Optical propagation; Optical waveguides; Transmission lines;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1212625
