Seven-core neodymium-doped phosphate all-solid photonic crystal fibers

被引：4

作者：

Wang, Longfei ^{[1
,2
]}

He, Dongbing ^{[1
,2
]}

Feng, Suya ^{[1
,2
]}

Yu, Chunlei ^{[1
,2
]}

Hu, Lili ^{[1
,2
]}

Chen, Danping ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab High Power Laser Mat, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

LASER PHYSICS | 2016年 / 26卷 / 01期

关键词：

multicore; all-solid laser; photonic crystal fiber; refractive index mismatch; soft glasses; HIGH-POWER; PHASE-LOCKING; OUTPUT POWER; LASER; SELECTION; GLASS;

D O I：

10.1088/1054-660X/26/1/015104

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a single-mode seven-core Nd-doped phosphate photonic crystal fiber with all-solid structure with an effective mode field diameter of 108 mu m. The multicore fiber is first theoretically investigated through the finite-difference time-domain method. Then the in-phase mode is selected experimentally by a far-field mode-filtering method. The obtained in-phase mode has 7 mrad mode field divergences, which approximately agrees with the predicted 5.6 mrad in seven-core fiber. Output power of 15.5 W was extracted from a 25 cm fiber with slope efficiency of 57%.

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页数：4

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