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7 February 2007 10-channel fiber array fabrication technique for parallel optical coherence tomography system
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Optical Coherence Tomography (OCT) shows great promise for low intrusive biomedical imaging applications. A parallel OCT system is a novel technique that replaces mechanical transverse scanning with electronic scanning. This will reduce the time required to acquire image data. In this system an array of small diameter fibers is required to obtain an image in the transverse direction. Each fiber in the array is configured in an interferometer and is used to image one pixel in the transverse direction. In this paper we describe a technique to package 15&mgr;m diameter fibers on a siliconsilica substrate to be used in a 2mm endoscopic probe tip. Single mode fibers are etched to reduce the cladding diameter from 125&mgr;m to 15&mgr;m. Etched fibers are placed into a 4mm by 150&mgr;m trench in a silicon-silica substrate and secured with UV glue. Active alignment was used to simplify the lay out of the fibers and minimize unwanted horizontal displacement of the fibers. A 10-channel fiber array was built, tested and later incorporated into a parallel optical coherence system. This paper describes the packaging, testing, and operation of the array in a parallel OCT system.
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Lina J. Arauz, Yuan Luo, Jose E. Castillo, Raymond K. Kostuk, and Jennifer Barton "10-channel fiber array fabrication technique for parallel optical coherence tomography system", Proc. SPIE 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI, 64292H (7 February 2007);

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