Design of a compact polarization rotator for silicon-based slot waveguides

Yin Xu; Jiayuan Wang; Jinbiao Xiao; Xiaohan Sun

doi:10.1117/12.2066807

21 August 2014 Design of a compact polarization rotator for silicon-based slot waveguides

Yin Xu, Jiayuan Wang, Jinbiao Xiao, Xiaohan Sun

Proceedings Volume 9233, International Symposium on Photonics and Optoelectronics 2014; 923322 (2014) https://doi.org/10.1117/12.2066807
Event: International Symposium on Photonics and Optoelectronics (SOPO 2014), 2014, Suzhou, China

Abstract

A design scheme of compact polarization rotator (PR) for silicon-based slot waveguides is proposed, where the slot including the upper claddings is filled with liquid crystals (LCs). With this design, the transverse field components of eigenmodes supported by the slot waveguides have almost identical amplitudes due to the anisotropic features of the LCs, leading to a high modal hybridness, which plays a pivotal role in designing an efficient PR. As a consequence, the input TE (TM) mode can be converted efficiently to the TM (TE) mode at the output port within a short length. The numerical results show that a PR of 11.3m in length at the operating wavelength of 1.55m is achieved with the extinction ratio and insertion loss of 12.6 (11.5) dB and 0.22 (0.30) dB, for TE-to-TM (TM-to-TE) conversion, respectively. Moreover, field evolution along the propagation distance through the PR is also demonstrated.

Citation Download Citation

Yin Xu, Jiayuan Wang, Jinbiao Xiao, and Xiaohan Sun "Design of a compact polarization rotator for silicon-based slot waveguides", Proc. SPIE 9233, International Symposium on Photonics and Optoelectronics 2014, 923322 (21 August 2014); https://doi.org/10.1117/12.2066807

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available