Share Email Print
cover

Proceedings Paper • new

Flexible waveguides with amorphous photonic materials
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Amorphous photonic materials offer an alternative to photonic crystals as a building block for photonic integrated circuits due to their shared short-range order. By using the inherent disorder of amorphous photonic materials, it is possible to design flexible-shaped waveguides that are free from restrictions of photonic crystals at various symmetry axes. Effects of disorder on photonic crystal waveguide boundaries have examined before, and it is shown that flexible waveguides with high transmission are possible by forming a wall of equidistant scatterers around the defect created inside amorphous material configuration. Based on this principle, waveguides with various flexible shapes are designed and fabricated for planar circuit applications. A silicon-on-insulator (SOI) slab with random configuration of air hole scatterers is used. The amorphous configuration is generated through realistic Monte Carlo simulations mimicking crystalline-to-amorphous transition of semiconductor crystals via an assigned Yukawa potential to individual particles. The design parameters such as average hole distance, slab thickness and hole radius are adjusted so that the waveguide is utilizable around 1550 nm telecommunications wavelength. Such waveguides on slab structures are characterized here and the level of randomness and band gap properties of amorphous configurations are analyzed in detail. These efforts have the potential to lead easier design of a wide range of components including but not limited to on-chip Mach-Zehnder interferometers, splitters, and Y-branches.

Paper Details

Date Published: 27 February 2019
PDF: 7 pages
Proc. SPIE 10914, Optical Components and Materials XVI, 1091410 (27 February 2019); doi: 10.1117/12.2510685
Show Author Affiliations
Murat Can Sarihan, Univ. of California, Los Angeles (United States)
Yildirim Batuhan Yilmaz, Middle East Technical Univ. (Turkey)
Mertcan Erdil, Middle East Technical Univ. (Turkey)
Mehmet Sirin Aras, Univ. of California, Los Angeles (United States)
Cenk Yanik, Sabanci Univ. (Turkey)
Chee Wei Wong, Univ. of California, Los Angeles (United States)
Serdar Kocaman, Middle East Technical Univ. (Turkey)


Published in SPIE Proceedings Vol. 10914:
Optical Components and Materials XVI
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

© SPIE. Terms of Use
Back to Top