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Ubwoko butandukanye bwa amplifiers buratandukanye cyane mubitekerezo byumutungo wuzuze. For example, rare-earth-doped laser gain media can store substantial amounts of energy, whereas optical parametric amplifiers provide amplification only as long as the pump beam is present. As another example, semiconductor optical amplifiers store much less energy than fiber amplifiers, and this has important implications for optical fiber communications. -
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