Optical coupling analysis of dual-waveguide structure for monolithic integration of photonic devices

Author

Kang, Young-Shik ; Kim, Sung-Bock ; Chung, Yong-Duck ; Kim, Jeha

Author_Institution

Basic Res. Lab., ETRI, Daejeon, South Korea

Volume

17

Issue

11

fYear

2005

Firstpage

2304

Lastpage

2306

Abstract

We proposed the dual-waveguide structure (DWS) with spot size converters and demonstrated the monolithic integration of both photodetector (PD) and electroabsorption modulator (EAM) based on the DWS. The coupling loss between the device facet and a lensed fiber was as small as 2.13 dB. The responsivity of PD and the extinction ratio of EAM were 0.58 A/W and 20 dB at -4 V_dc, respectively. From the optical coupling analysis, it was proved that the dual-waveguide scheme provided one of the best solutions for the monolithic integration of optoelectronic devices.

Keywords

electro-optical modulation; electroabsorption; integrated optics; integrated optoelectronics; lenses; monolithic integrated circuits; optical fibre couplers; optical fibre losses; optical waveguides; photodetectors; 2.13 dB; coupling loss; device facet; dual-waveguide structure; electroabsorption modulator; extinction ratio; lensed fiber; monolithic integration; optical coupling analysis; optoelectronic devices; photodetector; photonic devices; responsivity; spot size converters; Monolithic integrated circuits; Optical coupling; Optical devices; Optical fiber devices; Optical fiber losses; Optical losses; Optical modulation; Optical waveguides; Photodetectors; Propagation losses; Dual-waveguide structure (DWS); electroabsorption modulator (EAM); monolithic integration; spot size converter (SSC); waveguide photodiode;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.858053

Filename

1522301