Title :
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
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;
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
DOI :
10.1109/SOPO.2010.5504127
