Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/40855
Title: Hollow-core photonic bandgap fiber Mach-Zehnder interferometer based on a long period grating and an offset-splice joint
Authors: Yu, X
Ju, J
Jin, W 
Zhang, J
Liu, S
Keywords: Carbon dioxide lasers
Dichroic prisms
Fusion splicing
Interferometers
Mach-Zehnder interferometer
Issue Date: 2012
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2012, v. 8421, 84216T How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: We report a compact in-fiber Mach-Zehnder interferometer (MZI) made along a hollow-core photonic bandgap fiber (HC-PBF). The MZI uses a long period grating (LPG) and an offset-splice joint (OSJ) which act as beam splitter and combiner respectively. The LPG was produced by use of a high frequency pulsed CO2 laser, and the OSJ was made in serial with the LPG by using a commercial fusion splicer. The interference is between the fundamental core mode (FCM) and a high-order core mode (HOCM). The proposed interferometer was experimentally tested for temperature and strain measurements, and the sensitivities of the interference fringe dip wavelength to temperature and strain are 107.5 pm/ (°C-m) and -1.24 pm/με, respectively.
Description: 22nd International Conference on Optical Fiber Sensors, Beijing, China, 15-19 Oct 2012
URI: http://hdl.handle.net/10397/40855
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.966812
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