Comb-Filter Based on In-Fiber Mach-Zehnder Interferometer Using a Twin-Core Fiber

Author

Fan, Linyong ; Jiang, Weiwei ; Feng, Suchun ; Zhao, Ruifeng ; Zheng, Siwen ; Li, Huanlu ; Pei, Li ; Jian, Shuisheng

Author_Institution

Inst. of Lightwave Technol., Beijing Jiaotong Univ., Beijing, China

fYear

2010

fDate

19-21 June 2010

Firstpage

1

Lastpage

4

Abstract

A comb-filter based on in-fiber Mach-Zehnder interferometer (MZI) is experimentally fabricated by splicing a section of single mode noncircular twin-core fiber (TCF) between two single mode fibers (SMFs). The wavelength spacing between the adjacent transmission peaks was numerically and experimentally analyzed, and it is associated with the effective index difference of the two cores and the length of the TCF. The wavelength spacing between the adjacent transmission peaks can be narrowed by increasing the length of the TCF or the effective index difference of the two cores. This device is compact and easy to be fabricated.

Keywords

Mach-Zehnder interferometers; fibre optic sensors; optical fibre fabrication; optical fibre filters; splicing; comb-filter; effective index difference; in-fiber Mach-Zehnder interferometer; transmission peak; twin-core fiber; wavelength spacing; Arm; Erbium-doped fiber amplifier; Interference; Optical fiber communication; Optical fiber devices; Optical fiber networks; Optical fiber sensors; Optical interferometry; Sagnac interferometers; Splicing;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronic (SOPO), 2010 Symposium on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4963-7

Electronic_ISBN

978-1-4244-4964-4

Type

conf

DOI

10.1109/SOPO.2010.5504127

Filename

5504127