Highly birefringent suspended-core photonic microcells for refractive-index sensing

Journal Article · Mon Aug 11 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4892962· OSTI ID:22317979

Wang, Chao ^[1]; Jin, Wa; Ma, Jun; Jin, Wei; Yang, Fan; Ho, Hoi Lut ^[1]; Liao, Changrui; Wang, Yiping ^[2]

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1. Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong (China)
2. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province, Shenzhen University, Shenzhen 518060 (China)

An in-line photonic microcell with a highly birefringent suspended microfiber core is fabricated by locally heating and pressurizing selected air-holes of an endless single mode photonic crystal fiber. The microfiber core has rhombus-like cross-sectional geometry and could achieve a high birefringence of up to 10{sup −2}. The microfiber core is fixed at the center of the microcell by thin struts attached to an outer jacket tube, which protects and isolates the microfiber from environmental contaminations. Highly sensitive and robust refractive index sensors based on such microcells are experimentally demonstrated.

• OSTI ID: 22317979
• Journal Information: Applied Physics Letters, Vol. 105, Issue 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BIREFRINGENCE
CRYSTALS
FIBERS
HEATING
MICROSTRUCTURE
PRESSURIZATION
REFRACTIVE INDEX