CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume PC11948 > Article
Presentation
7 March 2022 Active spectrometer matching for excess noise suppression in balanced visible light OCT
Aaron M. Kho, Vivek Srinivasan
Author Affiliations +
Proceedings Volume PC11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI; PC119480V (2022) https://doi.org/10.1117/12.2608009
Event: SPIE BiOS, 2022, San Francisco, California, United States
Abstract
We present a novel approach to actively match the sampling of two linear array spectrometers to a precision of 0.001% of their total spectral range. We show that with a simple scaled subtraction of data from matched spectrometers, we are able to achieve more than two orders-of-magnitude excess noise suppression in balanced spectral domain visible light Optical Coherence Tomography. We demonstrate retinal imaging with visible light OCT at high-speed (70,000 axial scans per second) and low power (125 microwatts) at near the shot noise limit, even using a relatively inexpensive supercontinuum light source with a 30 MHz repetition rate.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Aaron M. Kho and Vivek Srinivasan "Active spectrometer matching for excess noise suppression in balanced visible light OCT", Proc. SPIE PC11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI, PC119480V (7 March 2022); https://doi.org/10.1117/12.2608009
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Optical coherence tomography
Spectroscopy
Visible radiation
Retinal scanning
Cameras
Imaging systems
Light sources
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top