Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7649
Title: Tunable phase-shifted fiber Bragg grating based on femtosecond laser fabricated in-grating bubble
Authors: Liao, C
Xu, L
Wang, C
Wang, DN 
Wang, Y
Wang, Q
Yang, K
Li, Z
Zhong, X
Zhou, J
Liu, Y
Issue Date: 2013
Publisher: Optical Society of America
Source: Optics letters, 2013, v. 38, no. 21, p. 4473-4476 How to cite?
Journal: Optics letters 
Abstract: We present a type of phase-shifted fiber Bragg gratings based on an in-grating bubble fabricated by femtosecond (fs) laser ablation together with a fusion-splicing technique. A microchannel vertically crossing the bubble is drilled by fs laser to allow liquid to flow in or out. By filling different refractive index (RI) liquid into the bubble, the phase-shift peak is found to experience a linear red shift with the increase of RI, while little contribution to the change of phase shift comes from the temperature and axial strain. Therefore, such a PS-FBG could be used to develop a promising tunable optical filter and sensor.
URI: http://hdl.handle.net/10397/7649
ISSN: 0146-9592
EISSN: 1539-4794
DOI: 10.1364/OL.38.004473
Appears in Collections:Journal/Magazine Article

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