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Tunable DFBLaser Sources: The Right Choice For EDFA and System-level Testing

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Tunable DFBLaser Sources: The Right Choice For EDFA and System-level Testing

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  • Author: Olivier Plomteux, Nathalie Dube
This article will review the critical parameters of tunable laser sources (TLS) applicable to EDFA and system testing. With the objective of increasing confidence in EDFA testing as well as system qualification and manufacturing, we will also examine the performance characteristics of a tunable DFB laser source and present its principal advantages. Controlling monochromatic laser central wavelength has been a hot R&D topic for the past 20 years. From probing atmospheric gases to solid-state materials, the narrow emission linewidth and relatively high power characteristics of TLSs has been essential to spectroscopy and interferometry measurements. It is a unique tool, which triggered the development and industrialization of new technologies.

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