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device for the generation and amplification of coherent electromagnetic radiation, and method of manufacturing the same
device for the generation and amplification of coherent electromagnetic radiation, and method of manufacturing the same
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机译:用于产生和放大相干电磁辐射的装置及其制造方法
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摘要
A semiconductor laser/amplifier is disclosed in which the radiation oscillates only in one longitudinal mode. According to the invention this is achieved by a strip-shaped active region which exhibits periodic variations in amplification (and preferably also in the amplification profile) in its longitudinal direction over at least a part of its length. The period of the amplification variation is at least ten times the wavelength of the radiation.
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