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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 | Source: | Optics letters, 2013, v. 38, no. 21, p. 4473-4476 | 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. | Publisher: | Optical Society of America | Journal: | Optics letters | ISSN: | 0146-9592 | EISSN: | 1539-4794 | DOI: | 10.1364/OL.38.004473 |
Appears in Collections: | Journal/Magazine Article |
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Liao_Tunable_Phase-shifted_Fiber.pdf | 688.02 kB | Adobe PDF | View/Open |
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