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21 February 2020 Novel miniature 2 μm Watt-level PM single clad Tm-doped fiber amplifier
Robert E. Tench, Alexandre Amavigan, Jean-Marc Delavaux, Thierry Robin, Beniot Cadier, Arnaud Laurent
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Proceedings Volume 11260, Fiber Lasers XVII: Technology and Systems; 112600Y (2020) https://doi.org/10.1117/12.2544953
Event: SPIE LASE, 2020, San Francisco, California, United States
Abstract
Recent developments in LIDAR, atmospheric sensing, and WDM transmission system experiments highlight the need for large bandwidth, high dynamic range polarization-maintaining (PM) optical amplifiers in the 1.9—2.1 μm band. While some results for all-double-clad PM amplifier designs have been presented, single clad PM amplifiers are particularly attractive in these applications because of their potential for high gain and low noise figures approaching the quantum limit. There is also a strong and growing need for need for compact and rugged amplifiers to boost modest (1 mW CW) semiconductor laser source output powers in a space/satellite environment. In this paper, we report first experimental results for a newly developed single clad PM Thulium-doped fiber with the parameters shown in Table 1 below and an optical signal bandwidth of < 120 nm, and then present performance of a miniature packaged optical amplifier using this new fiber.
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Robert E. Tench, Alexandre Amavigan, Jean-Marc Delavaux, Thierry Robin, Beniot Cadier, and Arnaud Laurent "Novel miniature 2 μm Watt-level PM single clad Tm-doped fiber amplifier", Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 112600Y (21 February 2020); https://doi.org/10.1117/12.2544953
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KEYWORDS
Optical amplifiers
Fiber amplifiers
LIDAR
Phase modulation
Quantum efficiency
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