Green multi-SLED source for high-resolution visible OCT

M. Duelk; N. Primerov; J. Rios; S. Gloor; C. Jobson; T. von Niederhäusern; M. Malinverni; A. Castiglia; M. Rossetti; C. Vélez

doi:10.1117/12.3005651

12 March 2024 Green multi-SLED source for high-resolution visible OCT

M. Duelk, N. Primerov, J. Rios, S. Gloor, C. Jobson, T. von Niederhäusern, M. Malinverni, A. Castiglia, M. Rossetti, C. Vélez

Author Affiliations +

Proceedings Volume 12830, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVIII; 1283004 (2024) https://doi.org/10.1117/12.3005651
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

We demonstrate the first broadband light source based on spectral combination of four superluminescent diodes (SLEDs) in the cyan-to-green wavelength range, suitable for high-resolution, visible optical coherence tomography (OCT). Two integrated combined-SLED sources, each comprising two wavelength-shifted green SLEDs, are realized through micro-optical module integration. Each of those two combined-SLED sources is delivering a highly polarized output spectrum at a polarization-maintaining (PM) fiber. The output of the two PM fibers is then spectrally combined with a free-space, micro-optical combiner module to a common, single-mode fiber output with a broadband output spectrum having a 10dB wavelength range from 481nm to 519nm, a 3dB bandwidth of 32nm and a coherence length of 4.5 microns in air.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

M. Duelk, N. Primerov, J. Rios, S. Gloor, C. Jobson, T. von Niederhäusern, M. Malinverni, A. Castiglia, M. Rossetti, and C. Vélez "Green multi-SLED source for high-resolution visible OCT", Proc. SPIE 12830, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVIII, 1283004 (12 March 2024); https://doi.org/10.1117/12.3005651

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