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  4. 25W, 2µm Broadband Polarization-Maintaining Hybrid Ho- and Tm-Doped Fiber Amplifier
 
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2019
Conference Paper
Title

25W, 2µm Broadband Polarization-Maintaining Hybrid Ho- and Tm-Doped Fiber Amplifier

Abstract
Current developments in LIDAR and atmospheric sensing experiments highlight the need for multi-watt, large bandwidth, high dynamic range polarization-maintaining optical amplifiers in the eye safe 1.9-2.15 mm band. So far, as an illustration of the previous state of the art for high power devices, multi-watt Tm-doped fiber amplifiers (TDFAs) have been demonstrated by Goodno et al. with an output power of 608 W at a signal wavelength of 2040 nm. As for Ho-doped fiber amplifiers (HDFAs) Hemming et al. have reported output powers of 265 W at 2110 nm. For this HDFA, a double clad Ho-doped fiber pumped by high power fiber lasers made the configuration complex and yielded an optical slope efficiency of 41%. Both of these achievements were with standard (non-polarization-maintaining) fiber.
Author(s)
Tench, Robert E.
Romano, Clément  
Delavaux, Jean-Marc
Mainwork
Fiber lasers XVI. Technology and systems  
Conference
Conference "Fiber Lasers - Technology and Systems" 2018  
Open Access
File(s)
Download (689.68 KB)
Rights
Use according to copyright law
DOI
10.24406/publica-r-403930
10.1117/12.2505436
Language
English
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
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