$Optical refractometer based on a birefringent Bragg grating written in an H-shaped fiber$

Optical refractometer based on a birefringent Bragg grating written in an H-shaped fiber

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 resp...

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Veröffentlicht in:	Optics letters 2009, Vol.34 (1), p.76-78
Hauptverfasser:	FRAZAO, O, MARTYNKIEN, T, BAPTISTA, J. M, SANTOS, J. L, URBANCZYK, W, WOJCIK, J
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Fiber optics Fundamental areas of phenomenology (including applications) General equipment and techniques Instruments, apparatus, components and techniques common to several branches of physics and astronomy Optical instruments, equipment and techniques Optics Other fiber-optical devices Physics Refractometers and reflectometers Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing Sensors, gyros
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Beschreibung
Zusammenfassung:	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.
ISSN:	0146-9592 1539-4794
DOI:	10.1364/OL.34.000076