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Fiber optic tunable probe for endoscopic optical coherence tomography

Khaled Aljasem, Armin Werber, Andreas Seifert and Hans Zappe

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A novel miniaturized fiber optic tunable endoscopic probe based on a pneumatically actuated micro-lens is presented. The probe has a diameter of ~4 mm and is integrated into a time-domain optical coherence tomography (OCT) system. The integration of the tunable lens with the OCT system leads to a uniformly high lateral resolution and high contrast of the OCT images over the entire scan depth. In addition, the tunable probe can be considered as a platform for integrating multiple microsystems, including particularly scanning micro-mirrors, in a single high-performance endoscopic OCT system.


PACS

87.63.L- Visual imaging

42.81.Pa Sensors, gyros

07.60.Vg Fiber-optic instruments

42.79.Bh Lenses, prisms and mirrors

42.30.Wb Image reconstruction; tomography

Subjects

Instrumentation and measurement

Optics, quantum optics and lasers

Medical physics

Dates

Issue 4 (April 2008)

Received 16 October 2007, accepted for publication 13 December 2007

Published 3 April 2008



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