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Experimental results on a synchronously pumped, all single-mode fiber Raman laser with a low threshold of 740 mW are reported. Suppression of gain fluctuations due to pump phase noise has been achieved by implementing a fiber coupler of high multiplexing effect. Multistokes generation of low-noise optical pulse trains atλ = 1.12 andλ = 1.18 has also been obtained with a subwatt pump threshold.
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Desurvire et al. (1987) studied this question.
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