Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Cost-effective all-fiber autocorrelator-based 1300-nm OCT system

[+] Author Affiliations
Felix Feldchtein

Imalux Corp. (USA) and Institute of Applied Physics (Russia)

Jeff Bush

Optiphase, Inc. (USA)

Grigory Gelikonov, Valentin Gelikonov

Institute of Applied Physics (Russia)

Sergey Piyevsky

Imalux Corp. (USA)

Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, 349 (April 19, 2005); doi:10.1117/12.589502
Text Size: A A A
From Conference Volume 5690

  • Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX
  • Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto
  • San Jose, CA | January 22, 2005

abstract

We report a design and implementation of an Optical Coherence Tomography (OCT) system based on new topology-a probe with partial reflection from a fiber tip, connected with an all-fiber autocorrelator with Faraday mirrors. The system is made of communication fiber SMF-28 and doesn"t need any electronic means (like polarization diversity receiver) to compensate for static and dynamic polarization distortions, associated with birefringence of a flexible fiberoptic probe. Because of the system topology, it no longer requires a full optical length matching arm (reference arm) and is therefore insensitive to the probe length and wave dispersion properties. The system is implementing time-domain scanning with Doppler detection, with two piezofiber delay elements, one for AC in-depth scanning, and another for DC adjustment of coherence gate scanning range. It uses a 6 mW, 55 nm bandwidth superluminescent diode with 1300 nm central wavelength, and has 15 μm in-depth (free space) and 25 μm lateral resolution, 0.7 frames per second acquisition rate. It has a catheter-based, en face, 8 Fr diameter universal probe, suitable for endoscopic imaging. Simplicity and cost effectiveness of the new topology result in the creation of a commercially available, FDA cleared system for medical OCT imaging. Theoretical and experimental optimization of the system, including optimization of probe fiber tip "reference" reflection coefficient, has been performed. Special waveform is applied to the AC piezofiber delay line, resulting in good stability of the scanning velocity and instantaneous Doppler frequency over a 70% duty cycle, which enables use of narrow bandpass signal filtering such that signal to noise performance is optimized.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Felix Feldchtein ; Jeff Bush ; Grigory Gelikonov ; Valentin Gelikonov and Sergey Piyevsky
"Cost-effective all-fiber autocorrelator-based 1300-nm OCT system", Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, 349 (April 19, 2005); doi:10.1117/12.589502; http://dx.doi.org/10.1117/12.589502


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.