A Caltech Library Service

Paired-angle-rotation scanning optical coherence tomography forward-imaging probe

Wu, Jigang and Conry, Michael and Gu, Chunhui and Wang, Fei and Yaqoob, Zahid and Yang, Changhuei (2006) Paired-angle-rotation scanning optical coherence tomography forward-imaging probe. Optics Letters, 31 (9). pp. 1265-1267. ISSN 0146-9592.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


We report a novel forward-imaging optical coherence tomography (OCT), needle-probe paired-angle-rotation scanning OCT (PARS-OCT) probe. The probe uses two rotating angled gradient-index lenses to scan the output OCT probe beam over a wide angular arc (∼19° half-angle) of the region forward of the probe. Among other advantages, this probe design is readily amenable to miniaturization and is capable of a variety of scan modes, including volumetric scans. To demonstrate the advantages of the probe design, we have constructed a prototype probe with an outer diameter of 1.65 mm and employed it to acquire four OCT images, with a 45° angle between adjacent images, of the gill structure of a Xenopus laevis tadpole. The system sensitivity was measured to be 93 dB by using the prototype probe with an illumination power of 450 μW on the sample. Moreover, the axial and the lateral resolutions of the probe are 9.3 and 10.3-12.5 μm, respectively.

Item Type:Article
Related URLs:
URLURL TypeDescription
Yang, Changhuei0000-0001-8791-0354
Additional Information:© 2006 Optical Society of America Original Manuscript: December 22, 2005; Manuscript Accepted: January 31, 2006 This research was supported by funding from the National Institutes of Health, 5R21EB004602-02.
Funding AgencyGrant Number
Subject Keywords:Fiber optic imaging; Medical optics instrumentation; Scanners; Endoscopic imaging; Medical and biological imaging; Optical coherence tomography
Issue or Number:9
Record Number:CaltechAUTHORS:WUJol06
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4132
Deposited By: Archive Administrator
Deposited On:28 Jul 2006
Last Modified:09 Mar 2020 13:19

Repository Staff Only: item control page