Authors:	G. Yurtsever, Nicolas Weiss, Jeroen Kalkman, Ton G. van Leeuwen, R. Baets
Title:	Ultra-compact silicon photonic integrated interferometer for swept-source optical coherence tomography
Format:	International Journal
Publication date:	9/2014
Journal/Conference/Book:	Optics Letters
Editor/Publisher:	OSA,
Volume(Issue):	39(17) p.5228-5231
DOI:	10.1364/ol.39.005228
Citations:	44 (Dimensions.ai - last update: 14/4/2024) 27 (OpenCitations - last update: 19/4/2024) Look up on Google Scholar
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Abstract

We demonstrate an ultra compact silicon integrated photonic interferometer for swept-source optical coherence tomography (SS OCT). The footprint of the integrated interferometer is only 0.75 x 5 mm2. The design consists of three 2x2 splitters, a 13 cm physical length (50.4 cm optical length) reference arm and grating couplers. The photonic integrated circuit was used as the interferometer of a SS OCT system. The sensitivity of the system was measured to be -62 dB with 115 µW power delivered to the sample. Using the system, we demonstrate cross-sectional OCT imaging of a layered tissue phantom. We also discuss potential improvements in passive silicon photonic integrated circuit design and integration with active components.

Related Research Topics

• Integrated Optical Coherence Tomography Components