LP01 and LP11 mutual coupling conversion in a two-mode fiber Bragg grating

Chuang Wu, Zhengyong Liu, Kit Man Chung, Ming Leung Vincent Tse, F.Y. Chan, Pak Tao Lau, Chao Lu, Hwayaw Tam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

A fiber Bragg grating is inscribed in a two-mode fiber using a 193-nm excimer
laser and a phase mask. Strong LP01 and LP11 mutual coupling as large as 22.5 dB,
which corresponds to a modal conversion efficiency of more than 99%, is experimentally
achieved. The intermodal coupling mechanism is theoretically analyzed through a finite
element method. This device can be used as a low-cost reflective LP01 $ LP11 converter.
Original languageEnglish
Pages (from-to)1080-1086
JournalIEEE Photonics Journal
Volume4
Issue number4
DOIs
Publication statusPublished - 4 Apr 2012

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