Title :
Passive active resonant coupler (PARC) platform with mode expander
Author :
Saini, S.S. ; Dagenais, M. ; Johnson, F.G. ; Stone, D.R. ; Shen, H. ; Zhou, W. ; Pamulapati, J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA
Abstract :
Summary form only given.There is a need for integrating various active and passive devices on a single substrate to increase the functionality of optical modules. In our previous work, we had proposed and demonstrated a platform technology for this purpose called the passive active resonant coupler (PARC). We have integrated a mode expander to the PARC platform by incorporating three waveguides in the vertical direction. The top waveguide is the active waveguide (AW) optimized for gain at 1.55 /spl mu/m. The middle waveguide is a confined passive waveguide (CPW) optimized for passive devices like splitters etc. The bottom waveguide is a large loosely confined passive waveguide ILPW) optimized for high coupling efficiency to a cleaved standard single-mode fiber. The mode is coupled between respective waveguides using resonant coupling over a taper.
Keywords :
integrated optics; optical design techniques; optical directional couplers; optical losses; optical waveguides; optimisation; semiconductor quantum wells; PARC platform; active waveguide; bottom waveguide; cleaved standard single-mode fiber; confined passive waveguide; high coupling efficiency; middle waveguide; mode expander; optical beam splitters; optical modules; passive active resonant coupler platform; passive devices; platform technology; resonant coupling; top waveguide; vertical direction; Coupling circuits; Laser modes; Mars; Optical fiber devices; Optical waveguides; Photorefractive effect; Photorefractive materials; RNA; Resonance; USA Councils;
Conference_Titel :
Lasers and Electro-Optics, 2000. (CLEO 2000). Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-634-6
DOI :
10.1109/CLEO.2000.906656
