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1 April 2024 Mid-IR supercontinuum noise reduction by SPM
Rasmus E. Hansen, Callum R. Smith, Asbjørn M. Moltke, Christian R. Petersen, Sidharthan Raghuraman, Seongwoo Yoo, Ole Bang
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Proceedings Volume PC12865, Fiber Lasers XXI: Technology and Systems; PC128650I (2024) https://doi.org/10.1117/12.3002332
Event: SPIE LASE, 2024, San Francisco, California, United States
Abstract
We experimentally and numerically demonstrate a simple and general technique to reduce the noise of modulational instability and soliton-based broadband supercontinuum lasers at the pulse-to-pulse level. Because of the requirement of low cost and high average power, such supercontinuum lasers constitute 99% of today’s commercially available supercontinuum lasers. The technique relies on adding a short normal dispersion fiber to force the spectrally and temporally distributed solitons to spectrally broaden through self-phase modulation (SPM) and thereby overlap to average out the noise. We experimentally demonstrate that this SPM technique provides significant noise reduction over a broad bandwidth.
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Rasmus E. Hansen, Callum R. Smith, Asbjørn M. Moltke, Christian R. Petersen, Sidharthan Raghuraman, Seongwoo Yoo, and Ole Bang "Mid-IR supercontinuum noise reduction by SPM", Proc. SPIE PC12865, Fiber Lasers XXI: Technology and Systems, PC128650I (1 April 2024); https://doi.org/10.1117/12.3002332
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KEYWORDS
Denoising
Scanning probe microscopy
Mid-IR
Solitons
Quantum noise
Modulation
Optical coherence tomography
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