Title :
Design, Fabrication, and Characterization of Si-Based ARROW-B Photonic Crystal Sharp-Bend Waveguides and Power Splitters
Author :
Chen, Jian-Hua ; Huang, Yang-Tung ; Yang, Yu-Lin ; Lu, Ming-Feng
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
7/15/2012 12:00:00 AM
Abstract :
Si-based type-B antiresonant reflecting optical waveguide (ARROW-B) photonic crystal waveguides (PCWs) with 60° bend, 120° bend, and Y-branch power splitter were first successfully fabricated and characterized. A simple capsule-shaped defect was designed to modulate the 60° and 120° photonic crystal (PC) bend corners and Y-branch PC power splitters. In the preliminary experiments, the average bend losses of 60° and 120° PC bend waveguides for both polarizations were lower than 1.5 and 4.2 dB/bend, respectively. For the Y-branch PC power splitters, power imbalances for both polarizations were all lower than 0.7 dB. It shows that the fabricated Si-based ARROW-B PCWs can provide good light sharp-bend ability and power-split ability.
Keywords :
integrated optics; light polarisation; optical beam splitters; optical design techniques; optical fabrication; optical losses; optical modulation; optical waveguides; photonic crystals; silicon-on-insulator; PC bend corners; PC bend waveguides; Si; Si-based ARROW-B photonic crystal sharp-bend waveguides; Si-based type-B antiresonant reflecting optical waveguide; Y-branch PC power splitters; average bend losses; capsule-shaped defect design; light sharp-bend ability; optical design; optical fabrication; optical modulation; photonic crystal bend corners; polarizations; power imbalances; power-split ability; Couplings; Optical device fabrication; Optical fiber communication; Optical waveguides; Photonic crystals; Photonics; Antiresonant reflecting optical waveguide (ARROW); bend waveguide; photonic crystal (PC); photonic crystal waveguide (PCW); power splitter;
Journal_Title :
Lightwave Technology, Journal of
Conference_Location :
5/3/2012 12:00:00 AM
DOI :
10.1109/JLT.2012.2197671