Large-mode-area neodymium-doped all-solid double-cladding silicate photonic bandgap fiber with an index step of ∼0.5%

Meng Li; Longfei Wang; Shuai Han; Chunlei Yu; Danping Chen; Wei Chen; Lili Hu

doi:10.3788/COL201816.080601

Chinese Optics Letters, Volume. 16, Issue 8, 080601(2018)

Large-mode-area neodymium-doped all-solid double-cladding silicate photonic bandgap fiber with an index step of ∼0.5%

Meng Li^1,2, Longfei Wang^1、*, Shuai Han^1,2, Chunlei Yu¹, Danping Chen^1、**, Wei Chen¹, and Lili Hu¹

¹Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

²University of Chinese Academy of Sciences, Beijing 100049, China

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

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

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

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Table 1. Thermal Properties of the Glassesa
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Table 1. Thermal Properties of the Glassesa
Glass $T_{g}$ (°C) $T_{s}$ (°C) $T_{d}$ (°C) $α$ ( $10^{- 7} / K$ )
N0312 590 660 830 88
G1 558 735 840 99
G2 564 744 840 90
G3 399 653 780 85

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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%," Chin.Opt.Lett. 16, 080601 (2018)

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