Saturable Absorber Based on Graphene-Covered-Microfiber

Author

Xiaoying He ; Zhi-Bo Liu ; Wang, D.N. ; Minwei Yang ; Tian Yi Hu ; Jian-Guo Tian

Author_Institution

Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China

Volume

25

Issue

14

fYear

2013

fDate

15-Jul-13

Firstpage

1392

Lastpage

1394

Abstract

A polarization-dependent saturable absorber is developed by the use of graphene-polymer film covered microfiber. The evanescent field of the guided mode propagating along the microfiber can effectively interact with graphene. Polarization analysis shows that the single-layer graphene-based saturable absorber is more sensitive to polarization and has larger modulation depth than that of multi-layer graphene. Such a saturable absorber exhibits large saturable absorption power of >56.03 mW, and is easy to fabricate and compatible with optical fiber system. It has high potential in wide range of photonics applications.

Keywords

graphene; holey fibres; optical fibre fabrication; optical fibre losses; optical fibre polarisation; optical modulation; optical multilayers; optical polymers; optical saturable absorption; polymer films; C; evanescent field; graphene-polymer film covered microfiber; guided mode propagation; modulation depth; multilayer graphene; optical fiber system; photonics applications; polarization analysis; polarization-dependent saturable absorber; saturable absorption power; single-layer graphene-based saturable absorber; Saturable absorber; graphene; microfiber;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2266114

Filename

6544567