Abstract

We describe a compact double-layer waveguide grating splitter that not only achieves efficient coupling between single mode fiber and a silicon-on-insulator optical waveguide but also realizes effective splitting. By appropriate choice of waveguide/grating parameters, including thicknesses, periods, height, and fill factor to optimize the mode matching, coupling efficiency is improved and the value of power difference of each output port is also significantly decreased. The maximum of power difference between four output ports is about 6.2%; however, the minimum value is only 0.6% or so. Moreover, the average power difference of four output ports is lower than 10% for TE polarization light over the 10nm wavelength bandwidth centered at 1.54μm. In addition, the splitter structure has the best tolerance for grating fabrication with deviations of grating depth 90nm.

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
High-performance and compact binary blazed grating coupler based on an asymmetric subgrating structure and vertical coupling

Junbo Yang, Zhiping Zhou, Honghui Jia, Xueao Zhang, and ShiQiao Qin
Opt. Lett. 36(14) 2614-2617 (2011)

Reduced wavelength-dependent quarter-wave plate fabricated by a multilayered subwavelength structure

Wanji Yu, Akio Mizutani, Hisao Kikuta, and Tsuyoshi Konishi
Appl. Opt. 45(12) 2601-2606 (2006)

Investigation of the polarization-dependent diffraction of deep dielectric rectangular transmission gratings illuminated in Littrow mounting

Tina Clausnitzer, Thomas Kämpfe, Ernst-Bernhard Kley, Andreas Tünnermann, Alexandre Tishchenko, and Olivier Parriaux
Appl. Opt. 46(6) 819-826 (2007)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription