Acta Photonica Sinica, Volume. 35, Issue 7, 1066(2006)
The Probe Coupling Beam Limiting in Fiber Optic Evanescent Wave Biosensor
The matching radius of fiber probes with given conditions ation based on the theory of mode matching.The ray tracing of exciting laser propagation in the tapered probe with the calculated matching radius is analysed.The analyzing results indicate: if the probe coupling beams were without limitation,some rays would not satisfy the conditions of total internal reflection when they were propagated in tapered probe and would leak out the probe. In this case,the biosensor system would get false detection result and affected the system reliability. It presented this problem and resolved it in the system designing procedures.
Get Citation
Copy Citation Text
Deng Lixin, Feng Ying. The Probe Coupling Beam Limiting in Fiber Optic Evanescent Wave Biosensor[J]. Acta Photonica Sinica, 2006, 35(7): 1066
Category:
Received: Mar. 7, 2005
Accepted: --
Published Online: Jun. 3, 2010
The Author Email: Lixin Deng (dlx2001dlx@sohu.com)
CSTR:32186.14.