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Proceedings Article

Broadband SLD-based source for retina investigations

[+] Author Affiliations
Carla C. Rosa

INESC Porto (Portugal) and Univ. do Porto (Portugal)

Vladimir Shidlovski

Superlum Diodes Ltd. (Russia)

John A. Rogers

Ophthalmic Technologies Inc. (Canada)

Richard B. Rosen

New York Eye and Ear Infirmary (USA)

Adrian G. Podoleanu

Univ. of Kent/Canterbury (United Kingdom)

Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, 540 (April 19, 2005); doi:10.1117/12.592839
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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

Two and three SLD diodes are grouped together in order to obtain a compounded source of wide band for OCT investigations. One SLD has a two-lobe spectrum around 840 nm and a compounded spectrum is achieved by using SLDs of smaller wavelengths. This has two advantages: (1) the smaller the wavelength the lower the loss of power through the vitreous due to water absorption; (2) medium band, standard SLDs if used bring a more significant reduction to the coherence length than their counterparts, of medium band but centered at longer wavelength. We show that it is possible to obtain high resolution OCT images with an inexpensive, compact, and easy to operate source.

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

Carla C. Rosa ; Vladimir Shidlovski ; John A. Rogers ; Richard B. Rosen and Adrian G. Podoleanu
"Broadband SLD-based source for retina investigations", Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, 540 (April 19, 2005); doi:10.1117/12.592839; http://dx.doi.org/10.1117/12.592839


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