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EPJ Techniques and Instrumentation
Figure 1 | EPJ Techniques and Instrumentation

Figure 1

From: Conception, modelling, and characterization of a fiber amplifier with a simple and easy-to-repair configuration intended for the use in harsh environments

Figure 1

Optical system of the YDFA. Abbreviations are OI: optical isolator, PBS: polarization beam splitter, FC: fiber coupler, FF: fiber-to-fiber connector, PM: power meter, GP: glass plate, and BB: beam block. The splice points of the optical fiber are denoted with crosses and label numbers. In particular, splice points 4 and 5 connect the YDF, depicted in the bold green line

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