发明名称 |
FREQUENCY-ENCODED PARALLEL OCT AND ASSOCIATED SYSTEMS AND METHODS |
摘要 |
Methods and apparatus for performing optical coherence-domain reflectometry (OCDR) and optical coherence tomography (OCT) include techniques for increasing the number of depths of a sample that can be scanned simultaneously; these techniques relax or eliminate pathlength scanning requirements of the delay line. Depth encoding and differentiating/separating of depth-related data is accomplished using several frequency-encoding approaches, such as multiple-pathlength delay line that imposes a different frequency shift one each different pathlength or delay by employing a rotating reflective cylinder, stretching a fiber optic member, tilting a mirror to impose a linear phase ramp on the spectrum of the light wave, operating an accousto-optic beam deflector. Use of Mach-Zehnder interferometers and cascades of Mach-Zehnder interferometers with respective path lengths between its two arms to obtain frequency encoding for OCDR and OCT. |
申请公布号 |
WO02071042(A2) |
申请公布日期 |
2002.09.12 |
申请号 |
WO2002US02532 |
申请日期 |
2002.01.29 |
申请人 |
IZATT, JOSEPH, A.;ROLLINS, ANDREW, M. |
发明人 |
IZATT, JOSEPH, A.;ROLLINS, ANDREW, M. |
分类号 |
A61B5/00;G01B9/02;G01N21/47 |
主分类号 |
A61B5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|