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Proceedings Paper

Tapered photonic crystal fiber interferometer with enhanced sensitivity
Author(s): Sun-jie Qiu; Ye Chen; Jun-long Kou; Fei Xu; Yan-qing Lu
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Paper Abstract

We fabricate a miniature tapered photonic crystal fiber (PCF) interferometer with enhanced sensitivity by a new acid microdroplets etching method. This method, without elongating the PCF, moving and re-fixing the device during etching and measuring refractive index sensitivity, is very simple, cost-efficient and highly stable over time. We investigate the refractive index sensing properties with different PCF diameters both theoretically and experimentally. The size decreases and the sensitivity increases an order of magnitude after etching the PCF. If we can optimize the etching process, we can fabricate more uniformly and thinly tapered PCF interferometer with higher sensitivity (~ 100 times) theoretically in the future.

Paper Details

Date Published: 29 November 2011
PDF: 6 pages
Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 83071I (29 November 2011); doi: 10.1117/12.903958
Show Author Affiliations
Sun-jie Qiu, Nanjing Univ. (China)
Ye Chen, Nanjing Univ. (China)
Jun-long Kou, Nanjing Univ. (China)
Fei Xu, Nanjing Univ. (China)
Nanjing Univ. High-Tech Institute at Suzhou (China)
Yan-qing Lu, Nanjing Univ. (China)

Published in SPIE Proceedings Vol. 8307:
Passive Components and Fiber-Based Devices VIII
Bishnu P. Pal, Editor(s)

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