Arbitrary ratio power splitters using angled silica on silicon multi-mode interference couplers

Author

Lai, Q. ; Bachmann, M. ; Hunziker, W. ; Besse, P.A. ; Melchior, H.

Author_Institution

Swiss Federal Inst. of Technol., Zurich, Switzerland

Volume

2

fYear

1996

fDate

19-19 Sept. 1996

Firstpage

127

Abstract

Planar power splitters with free selection of power splitting ratios have been realized in the form of angled multi-mode interference (MMI) couplers in silica on silicon. Through proper choice of the intersection angle between two MMI couplers, any splitting ratio between 0 and 100% can be selected. The splitting ratios are within /spl plusmn/2 percent of the theoretically calculated values. Fiber-to-fiber losses are 1.1 dB and 18.7 dB for the 100% and 0% outputs, respectively. Excess losses are below 0.5 dB and the polarization dependence is less than 0.1 dB. These planar silica on silicon power splitters are suitable devices both for stand alone with fiber pigtails as well as for integration with other active and passive waveguide components.

Keywords

Mach-Zehnder interferometers; light interference; optical couplers; optical fabrication; optical losses; optical planar waveguides; silicon; silicon compounds; 0.5 dB; 1.1 dB; 18.7 dB; SiO/sub 2/-Si; active waveguide components; angled silica; arbitrary ratio power splitters; excess losses; fiber pigtails; fiber-to-fiber losses; free selection; intersection angle; passive waveguide components; planar power splitters; polarization dependence; polarization independent power splitting ratios; power splitting ratios; silicon multi-mode interference couplers; splitting ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communication, 1996. ECOC '96. 22nd European Conference on

Conference_Location

Oslo, Norway

Print_ISBN

82-423-0418-1

Type

conf

Filename

715708