Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17362
Title: Fiber in-line Mach-Zehnder interferometer constructed by selective infiltration of two air holes in photonic crystal fiber
Authors: Yang, M
Wang, DN 
Wang, Y
Liao, CR
Issue Date: 2011
Publisher: Optical Society of America
Source: Optics letters, 2011, v. 36, no. 5, p. 636-638 How to cite?
Journal: Optics letters 
Abstract: A fiber in-line Mach-Zehnder interferometer is fabricated through selective infiltrating of two adjacent air holes of the innermost layer in the solid core photonic crystal fiber, assisted by femtosecond laser micromachining. The liquid infiltrated has higher refractive index than that of the background silica, and, hence, the two rods created can support a guide mode with lower effective refractive index than that of silica. The interference is produced by the fiber fundamental mode and the guide mode. The free spectral range (FSR) of the interferometer is found to be dependent on the photonic crystal fiber length, and a large FSR corresponds to a short photonic crystal fiber length. Such an interferometer device is robust and exhibits extremely high temperature sensitivity (?7.3 nm/?XC for the photonic crystal fiber length of 3.4 cm) and flexible operation capability.
URI: http://hdl.handle.net/10397/17362
ISSN: 0146-9592
EISSN: 1539-4794
DOI: 10.1364/OL.36.000636
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