Sub-wavelength vertical coupling between polymer modulator platform and silicon photonics

Ruth E. Rubio-Noriega; Hugo E. Hernandez-Figueroa

doi:10.1117/12.2508660

4 March 2019 Sub-wavelength vertical coupling between polymer modulator platform and silicon photonics

Ruth E. Rubio-Noriega, Hugo E. Hernandez-Figueroa

Proceedings Volume 10921, Integrated Optics: Devices, Materials, and Technologies XXIII; 109211G (2019) https://doi.org/10.1117/12.2508660
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Thin-film polymer-on-silicon modulators are efficient devices which have shown potential for integration scalability due to chromophore-based electro-optic constant engineering. Assembling them into hybrid silicon-photonics integrated circuits poses an interesting challenge in terms of bandwidth and footprint. Accordingly, we propose the first, to the best of our knowledge, sub-wavelength silicon tapered structures to couple light vertically from a polymer film platform to a silicon-on-insulator chip. By designing horizontally tapered and longitudinally segmented waveguides in the subwavelength regime to couple light vertically, we can overcome the bandwidth limitations of grating couplers while still have considerable footprint reduction when compared to continuous linearly tapered evanescent vertical coupling. Our simulation results show that silicon-on-insulator-compatible linearly tapered segmented waveguides offer losses bellow 0.5 dB in the C and L bands with four times smaller coupling length than their continuous counterpart. Preliminary studies show that there is good horizontal misalignment tolerance up to 1.5 micrometers.

Conference Presentation

Citation Download Citation

Ruth E. Rubio-Noriega and Hugo E. Hernandez-Figueroa "Sub-wavelength vertical coupling between polymer modulator platform and silicon photonics", Proc. SPIE 10921, Integrated Optics: Devices, Materials, and Technologies XXIII, 109211G (4 March 2019); https://doi.org/10.1117/12.2508660

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