Automated heterodyne method to characterize semiconductor based akinetic swept laser sources

Carlos Reyes; Tomasz Piwonski; Brian Corbett; Brendan Roycroft

doi:10.1117/12.2526376

19 July 2019 Automated heterodyne method to characterize semiconductor based akinetic swept laser sources

Carlos Reyes, Tomasz Piwonski, Brian Corbett, Brendan Roycroft

Proceedings Volume 11078, Optical Coherence Imaging Techniques and Imaging in Scattering Media III; 110780X (2019) https://doi.org/10.1117/12.2526376
Event: European Conferences on Biomedical Optics, 2019, Munich, Germany

Abstract

An automated heterodyne method is proposed to characterize sampled grating distributed Bragg reflector (SG-DBR) lasers in terms of their lasing output wavelength, side-mode suppression ratio (SMSR) and output power. Such lasers are the core of akinetic all-semiconductor based swept sources for Optical Coherence Tomography (OCT) systems. The purpose of the paper is to demonstrate the technique and obtain a broader optical and electrical understanding in DC and AC operation. A JDSU Agile SG-DBR laser was characterized and found to have a tuning range ≈ 60 nm, a center wavelength λ_c = 1540 nm and average lasing power of 10 mW. The result of the AC characterization is a ‘tuning dictionary' that contains 379 tuning points (10 μs per tuning point).

Citation Download Citation

Carlos Reyes, Tomasz Piwonski, Brian Corbett, and Brendan Roycroft "Automated heterodyne method to characterize semiconductor based akinetic swept laser sources", Proc. SPIE 11078, Optical Coherence Imaging Techniques and Imaging in Scattering Media III, 110780X (19 July 2019); https://doi.org/10.1117/12.2526376

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