Title :
Proposal for an Ultracompact Polarization-Beam Splitter Based on a Photonic-Crystal-Assisted Multimode Interference Coupler
Author :
Shi, Yaocheng ; Dai, Daoxin ; He, Sailing
Author_Institution :
State Key Lab. for Modern Opt. Instrum., Zhejiang Univ.
fDate :
6/1/2007 12:00:00 AM
Abstract :
An ultracompact polarization-beam splitter (PBS) combining a multimode interference (MMI) coupler and some photonic crystal (PC) structures is presented. The MMI coupler is designed to collect polarized powers reflected by or transmitted through an internal PC structure. The simulation result shows that the designed PBS is very short (about 50 mum), and has a low insertion loss, a high extinction ratio, and a broad bandwidth
Keywords :
integrated optics; light polarisation; light reflection; optical beam splitters; optical couplers; optical losses; photonic crystals; 50 mum; extinction ratio; insertion loss; multimode interference coupler; photonic crystal; planar lightwave circuit; polarization-beam splitter; polarized power reflection; polarized power transmission; ultracompact beam splitter; Circuit simulation; Helium; Insertion loss; Interference; Optical interferometry; Optical losses; Optical polarization; Optical sensors; Photonic crystals; Proposals; Multimode interference (MMI); photonic crystal (PC); planar lightwave circuit; polarization-beam splitter (PBS);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.897297
