Design of a spectrometer for all-reflective optics-based line scan Fourier domain optical coherence tomography

Mohammad Kamal; Narayanswamy Sivakumar; Muthukumaran Packirisamy

doi:10.1117/12.873105

22 September 2010 Design of a spectrometer for all-reflective optics-based line scan Fourier domain optical coherence tomography

Mohammad Kamal, Narayanswamy Sivakumar, Muthukumaran Packirisamy

Author Affiliations +

Proceedings Volume 7750, Photonics North 2010; 775020 (2010) https://doi.org/10.1117/12.873105
Event: Photonics North 2010, 2010, Niagara Falls, Canada

Abstract

Optical design of a spectrometer for all-reflective optics based line scan Fourier domain optical coherence tomography (FD-OCT) imaging has been reported in this work for high-speed scanning. FD-OCT imaging data acquisition offers significantly improved imaging speed in the depth direction compared to conventional time domain optical coherence tomography (TD-OCT). On the other hand, line focused scanning improve imaging speed in the transverse direction compare to commonly used flying spot scanning. Combination of FD-OCT acquisition and line focused scanner can give higher imaging speed. Spectrometer is a critical submodule in FD-OCT system. Apart from the spectrometer optical resolution, and detector array resolution, the chromatic aberration should be considered to design a high-quality FD-OCT imaging spectrometer. The proposed imaging spectrometer consists of a planer reflective grating, off-axis parabolic cylindrical mirror and a CCD array detector. Mirror focusing reduces the chromatic aberration because of its insensitivity to the wavelength of the laser beam, therefore the spectrometer image quality enhanced by the reflective optics focusing. Spot profile fall-off characteristic was analyzed by using ZEMAX optical design software.

Citation Download Citation

Mohammad Kamal, Narayanswamy Sivakumar, and Muthukumaran Packirisamy "Design of a spectrometer for all-reflective optics-based line scan Fourier domain optical coherence tomography", Proc. SPIE 7750, Photonics North 2010, 775020 (22 September 2010); https://doi.org/10.1117/12.873105

ACCESS THE FULL ARTICLE

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