1300-nm ultra-broadband, high-power combined-SLED source integrated in 14-pin butterfly module for UHR-OCT

S. Gloor; J. Ojeda; N. Primerov; L. Merker; R. Rezzonico; T. von Niederhäusern; M. Duelk; C. Velez

doi:10.1117/12.2616122

9 December 2021 1300-nm ultra-broadband, high-power combined-SLED source integrated in 14-pin butterfly module for UHR-OCT

S. Gloor, J. Ojeda, N. Primerov, L. Merker, R. Rezzonico, T. von Niederhäusern, M. Duelk, C. Velez

Author Affiliations +

Proceedings Volume 11924, Optical Coherence Imaging Techniques and Imaging in Scattering Media IV; 1192417 (2021) https://doi.org/10.1117/12.2616122
Event: European Conferences on Biomedical Optics, 2021, Online Only

Abstract

We demonstrate a 1300-nm ultra-broadband and compact light source module with 180 nm FWHM optical bandwidth and 22 mW of output power, realized with four superluminescent diodes (SLEDs) that are integrated on a temperature-stabilized, free-space, micro-optical bench in a standard 14-pin Butterfly package. The light output of four SLED chips at 1220 nm, 1270 nm, 1310 nm and 1360 nm is collimated by micro-optical collimation lenses, spectrally combined through free-space dielectric edge filters and focused into a SMF-28 single-mode fiber. The combined broadband spectrum corresponds to a coherence length of 5.4 μm in air, suitable for ultra-high-resolution OCT systems at 1300 nm.

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S. Gloor, J. Ojeda, N. Primerov, L. Merker, R. Rezzonico, T. von Niederhäusern, M. Duelk, and C. Velez "1300-nm ultra-broadband, high-power combined-SLED source integrated in 14-pin butterfly module for UHR-OCT", Proc. SPIE 11924, Optical Coherence Imaging Techniques and Imaging in Scattering Media IV, 1192417 (9 December 2021); https://doi.org/10.1117/12.2616122

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