Title :
Power-efficient grating-based scanning optical delay line: time-domain configuration
Author :
Piao, D. ; Zhu, Q.
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Connecticut, Storrs, CT, USA
Abstract :
A power-efficient, grating-based, time-domain rapid scanning optical delay line (TD-RSOD) suitable for optical coherence tomography (OCT) is presented. The 6 dB power efficiency of this TD-RSOD over conventional double-pass Fourier-domain RSOD (FD-RSOD) provides approximately 4 dB SNR advantage in a typical balanced-detection OCT. The scanning performance of TD-RSOD is comparable to that of FD-RSOD.
Keywords :
optical delay lines; optical tomography; phase modulation; time-domain analysis; optical coherence tomography; power-efficient grating-based scanning optical delay line; scanning performance; time-domain configuration;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040095
