Abstract

We demonstrate contradirectional couplers in silicon-on-insulator rib waveguides using a CMOS compatible technology, in which a periodic dielectric perturbation is introduced in the coupling region between two different-sized rib waveguides. This structure enables high fabrication tolerances for narrow-bandwidth add-drop filters, using commercially available deep-ultraviolet lithography, that do not suffer from having a free spectral range. The simulation using coupled-mode theory and mode-profile calculations shows good agreement with experiment. A narrow bandwidth of 0.35nm and a low loss of less than 1dB have been achieved experimentally.

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Silicon photonic contradirectional couplers using subwavelength grating waveguides

Behnam Naghdi and Lawrence R. Chen
Opt. Express 24(20) 23429-23438 (2016)

FSR-free add–drop filter based on silicon grating-assisted contradirectional couplers

Huiye Qiu, Guomin Jiang, Ting Hu, Haifeng Shao, Ping Yu, Jianyi Yang, and Xiaoqing Jiang
Opt. Lett. 38(1) 1-3 (2013)

Coupler-apodized Bragg-grating add–drop filter

Wei Shi, Han Yun, Charlie Lin, Jonas Flueckiger, Nicolas A. F. Jaeger, and Lukas Chrostowski
Opt. Lett. 38(16) 3068-3070 (2013)

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 (6)

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

Equations (3)

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