title: Optical refractometer based on a birefringent Bragg grating written in an H-shaped fiber.
abstract: An optical refractometer based on a birefringent (Hi-Bi) fiber Bragg grating (FBG) written in a new H-shaped fiber structure is proposed. This structure is formed by opening the two holes of a side-hole fiber using chemical etching. When the Hi-Bi FBG is immersed in different liquids, different responses of the slow and fast wavelengths are obtained. The refractometer is also capable of simultaneous measurement of refractive index and temperature.
authors.affiliation: INESC Porto, Porto, Portugal. ofrazao@inescporto.pt
authors.forename: O
authors.initials: O
authors.lastname: Frazão
authors.forename: T
authors.initials: T
authors.lastname: Martynkien
authors.forename: J M
authors.initials: JM
authors.lastname: Baptista
authors.forename: J L
authors.initials: JL
authors.lastname: Santos
authors.forename: W
authors.initials: W
authors.lastname: Urbanczyk
authors.forename: J
authors.initials: J
authors.lastname: Wojcik