Broadband Mode Converter Based on Photonic Crystal Fiber

Author

Shanyong Cai ; Song Yu ; Mingying Lan ; Li Gao ; Song Nie ; Wanyi Gu

Author_Institution

State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

27

Issue

5

fYear

2015

fDate

March1, 1 2015

Firstpage

474

Lastpage

477

Abstract

In this letter, the scheme of a tapered mode-selective coupler based on photonic crystal fiber (PCF) is proposed. Three typical mode converters, such as LP₀₁ to LP_11a, LP₀₁ to LP_11b, and LP₀₁ to LP₂₁, are described and simulated in detail. The coupling loss and bandwidth is calculated to evaluate those mode converters. The results demonstrate that those mode converters are broadband and low-loss devices. In addition, those mode converters are insensitive to the orthogonal polarizations. They can be fabricated using PCF postprocessing technique and are useful for future mode-division multiplexing optical fiber communication systems.

Keywords

holey fibres; optical fibre couplers; optical fibre losses; photonic crystals; LP₀₁-LP_11a mode converters; LP₀₁-LP_11b mode converters; LP₀₁-LP₂₁ mode converters; broadband mode converter; coupling bandwidth; coupling loss; mode-division multiplexing optical fiber communication systems; orthogonal polarizations; photonic crystal fiber; tapered mode-selective coupler; Broadband communication; Couplers; Couplings; Multiplexing; Optical fiber communication; Optimized production technology; Photonics; Mode-division multiplexing; mode converter; mode-division multiplexing; photonic crystal fiber; tapered mode-selective coupler;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2377495

Filename

6975046