07355716 is referenced by 211 patents and cites 237 patents.

Apparatus, method, logic arrangement and storage medium are provided for increasing the sensitivity in the detection of optical coherence tomography and low coherence interferometry (“LCI”) signals by detecting a parallel set of spectral bands, each band being a unique combination of optical frequencies. The LCI broad bandwidth source can be split into N spectral bands. The N spectral bands can be individually detected and processed to provide an increase in the signal-to-noise ratio by a factor of N. Each spectral band may be detected by a separate photo detector and amplified. For each spectral band, the signal can be band p3 filtered around the signal band by analog electronics and digitized, or, alternatively, the signal may be digitized and band pass filtered in software. As a consequence, the shot noise contribution to the signal is likely reduced by a factor equal to the number of spectral bands, while the signal amplitude can remain the same. The reduction of the shot noise increases the dynamic range and sensitivity of the system.

Title
Apparatus and method for ranging and noise reduction of low coherence interferometry LCI and optical coherence tomography OCT signals by parallel detection of spectral bands
Application Number
10/501276
Publication Number
7355716 (B2)
Application Date
January 24, 2003
Publication Date
April 8, 2008
Inventor
Brett E Bouma
Quincy
MA, US
Guillermo J Tearney
Cambridge
MA, US
Johannes F de Boer
Somerville
MA, US
Agent
Dorsey & Whitney
Assignee
The General Hospital Corporation
MA, US
IPC
G01B 11/02
G01B 9/02
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