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.

Volume

19

Issue

11

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

825

Lastpage

827

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);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.897297

Filename

4182416