来源:《Photonics Research》2019年第02期  作者:GUANGWEI CHEN;WENLEI LI;GUOMEI WANG;WENFU ZHANG;CHAO ZENG;WEI ZHAO;
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Generation of coexisting high-energy pulses in a mode-locked all-fiber laser with a nonlinear multimodal interference technique

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We demonstrate a passively mode-locked all-fiber laser incorporating a piece of graded-index multimode fiber as a mode-locking modulator based on a nonlinear multimodal interference technique, which generates two types of coexisting high-energy ultrashort pulses [i.e., the conventional soliton(CS) and the stretched pulse(SP)]. The CS with pulse energy as high as 0.38 n J is obtained at the pump level of 130 mW. When the pump increases to175 mW, the high-energy SP occurs at a suitable nonlinear p(本文共计6页)......[继续阅读本文]

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