Tunable low-coherence light source with high spectral brightness
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Published:2021-04-01
Issue:4
Volume:51
Page:287-292
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ISSN:1063-7818
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Container-title:Quantum Electronics
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language:
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Short-container-title:Quantum Electron.
Author:
Shidlovskii V.R.,Shramenko M.V.,Yakubovich S.D.
Abstract
Abstract
Operation of a tunable tandem-type low-coherence light source with high spectral brightness based on commercially available optical elements (superluminescent diode, semiconductor optical amplifier, and bulk dwiffraction grating) is studied experimentally. A unique combination of the output source characteristics, namely, a spectral power density of 36 mW nm−1, a wavelength tuning range of 35 nm (834 – 869 nm), and a more than 20-dB excess of the central peak intensity over the superluminescent pedestal, is experimentally obtained. It is shown that the output radiation spectrum with a width of 1.4 nm has a smooth bell-shaped profile with side lobes lying below the superluminescent pedestal. It is proved that such a light source is of practical interest for various applications.
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Statistical and Nonlinear Physics,Electronic, Optical and Magnetic Materials