Main > Chinese Optics Letters >  Volume 16 >  Issue 8 >  Page 080601 > Article
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  • Received: Apr. 14, 2018

    Accepted: Jun. 25, 2018

    Posted: Jan. 17, 2019

    Published Online: Aug. 2, 2018

    The Author Email: Longfei Wang (wanmeiguiji@gmail.com), Danping Chen (dpchen2008@aliyun.com)

    DOI: 10.3788/COL201816.080601

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    Meng Li, Longfei Wang, Shuai Han, Chunlei Yu, Danping Chen, Wei Chen, Lili Hu. Large-mode-area neodymium-doped all-solid double-cladding silicate photonic bandgap fiber with an index step of ∼0.5%[J]. Chinese Optics Letters, 2018, 16(8): 080601

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Cross-section of the fabricated fiber. Inset: magnified image of inner cladding.

Fig. 1. Cross-section of the fabricated fiber. Inset: magnified image of inner cladding.

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Mode patterns of (a) FM and (b) HOMmax. The OFs of the FM and the HOMmax are 58.13% and 12.35%, respectively. The CLs of the FM and the HOMmax are 0.01 dB/m and 221 dB/m.

Fig. 2. Mode patterns of (a) FM and (b) HOMmax. The OFs of the FM and the HOMmax are 58.13% and 12.35%, respectively. The CLs of the FM and the HOMmax are 0.01 dB/m and 221 dB/m.

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Measured output power as a function of the absorbed pumping power. Inset: fiber laser spectrum.

Fig. 3. Measured output power as a function of the absorbed pumping power. Inset: fiber laser spectrum.

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Measured M2 factor of the bandgap fiber. Inset: beam pattern in the far-field.

Fig. 4. Measured M2 factor of the bandgap fiber. Inset: beam pattern in the far-field.

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