Ultra-compact silicon photonic integrated interferometer for swept-source optical coherence tomography

Autor: Nicolás Weiss, Jeroen Kalkman, Ton G. van Leeuwen, Gunay Yurtsever, Roel Baets
Přispěvatelé: Other Research, Biomedical Engineering and Physics, ACS - Amsterdam Cardiovascular Sciences, CCA -Cancer Center Amsterdam
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Optics letters, 39(17), 5228-5231. The Optical Society
OPTICS LETTERS
Optics Letters, 39 (17), 2014
ISSN: 0146-9592
Popis: 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 0.75×5??mm2. The design consists of three 2×2 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 an SS-OCT system. The sensitivity of the system was measured to be ?62??dB with 115 ?W 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.
Databáze: OpenAIRE