Multi-probe photonic time-stretch optical coherence tomography

Hossein Asghari; Max Hushahn

doi:10.1117/12.2608916

7 March 2022 Multi-probe photonic time-stretch optical coherence tomography

Hossein Asghari, Max Hushahn

Proceedings Volume 11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI; 119480K (2022) https://doi.org/10.1117/12.2608916
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

Time-stretch dispersive Fourier transform is an all-optical processing method for real-time Fourier transformation of ultrafast optical signals that allows for the implementation of Optical Coherence Tomography (OCT) at tens of MHz Ascan rates. In this work we propose and demonstrate a Time-Stretch OCT (TS-OCT) method that supports multiple probes with minimal increase in complexity and cost of the system. The new method can be employed to expand the scannable area of TS-OCT system without sacrificing the x-y spatial resolution. The proposed method is based on using a Wavelength Division Multiplexer (WDM) device in the signal arm of the TS-OCT system connected to multiple independent imaging probes. The signal path in majority of the system is common for all the probe signals including the interferometer, highly dispersive element, optical amplifier, photo receiver, and digitizer channel. Different probe spectra interference signals are separated digitally in digital post processing on the computer. This method allows to have the benefit of multi-probe systems in TS-OCT systems with minimal increase in the system complexity and cost.

Citation Download Citation

Hossein Asghari and Max Hushahn "Multi-probe photonic time-stretch optical coherence tomography", Proc. SPIE 11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI, 119480K (7 March 2022); https://doi.org/10.1117/12.2608916

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optical coherence tomography

Wavelength division multiplexing

Mirrors

3D image processing

Optical amplifiers

Solids

Imaging systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years