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A new method by utilizing Brillouin backscattering of optical fiber to suppress the time delay signature (TDS) of an external cavity semiconductor laser is proposed and experimentally demonstrated. When the average power of the injected chaotic laser is within the range of 400–1500 mW, the TDS can be significantly suppressed with the G.655 fiber of the 0.5, 2, 4.5, or 6 km length. The G.652 fiber...
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