Mode field adaptation between single-mode fiber and large mode area fiber by thermally expanded core technique

Zhou, Xuanfeng; Chen, Zilun; Chen, Haihuan; Li, Jie; Hou, Jing

doi:10.1016/j.optlastec.2012.08.015

Cited by 28 publications

(10 citation statements)

References 15 publications

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“…Therefore, the mid-IR SC generation efficiency would be improved by reducing those losses e.g. the splicing loss caused by mode field mismatch can be reduced with the thermally expanded core technique [32], and the mechanical splicing loss can be reduced by using the fusion splicing method instead of the mechanical splicing. However, the efficiency decrease caused by spectral broadening is still a problem to be solved.…”

Section: Resultsmentioning

confidence: 99%

High power all fiber mid-IR supercontinuum generation in a ZBLAN fiber pumped by a 2 μm MOPA system

Yang¹,

Zhang²,

Yin³

et al. 2013

Opt. Express

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High power all fiber mid-IR supercontinuum (SC) generation in a ZBLAN fiber pumped by a 2 μm master oscillator power amplifier (MOPA) system is demonstrated. A semiconductor saturable absorber mirror (SESAM) passively mode-locked laser with pulse width of 26 ps at 1960 nm is used as the seed of the MOPA system. A laser spectrum extending from ~1.9 μm to beyond 2.6 μm is generated in a subsequent thulium-doped fiber amplifier (TDFA). Then, the spectrum is further broadened to the mid-IR region in the ZBLAN fiber. A mid-IR SC extending from 1.9 to 3.9 μm with 7.11 W average output power is obtained based on a large mode area TDFA, the SC power for wavelengths longer than 2.5 μm is 3.52 W with a power ratio of 49.5% with respect to the total SC power. The overall optical conversion efficiency from the 790 nm pump of the large mode area TDFA to the total SC output is 10.4%. To the best of our knowledge, both the 7.11 W total average power and 3.52 W average power in wavelengths beyond 2.5 μm are the highest power ever reported for a mid-IR SC generation in ZBLAN fiber pumped by 2 μm fiber lasers and TDFAs.

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Section: Resultsmentioning

confidence: 99%

High power all fiber mid-IR supercontinuum generation in a ZBLAN fiber pumped by a 2 μm MOPA system

Yang¹,

Zhang²,

Yin³

et al. 2013

Opt. Express

Self Cite

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“…The signal port of the combiner and the input port of the aforementioned AIFG are connected by a mode field adapter (MFA). The MFA is a home-made device based on a thermally expanded core technique [29]. The output port of the AIFG is further spliced with a few-mode FBG.…”

Section: Principle Of Aifgmentioning

confidence: 99%

All-Fiber Laser With Agile Mode-Switching Capability Through Intra-Cavity Conversion

Huang

et al. 2020

IEEE Photonics J.

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“…This is why the authors of a paper [91] were able to achieve approximately 95% signal transmission efficiency, despite a very large core and mode field diameter difference of used fibers. Two configurations of MFA, where at the input the authors have used firstly a 4/125 µm SM fiber, and secondly a 5/125 µm SM fiber, while a 15/130 µm LMA fiber was used as the output (in both cases) [94]. The MFAs achieved signal transmission efficiency of approximately 93% and 91%, respectively, with only the TEC method used for fabrication process.…”

Section: Mode Field Adaptorsmentioning

confidence: 99%

High-Power Passive Fiber Components for All-Fiber Lasers and Amplifiers Application—Design and Fabrication

Stachowiak

2018

Photonics

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The most important components for application in high-power all-fiber lasers and amplifiers are, most of all, power combiners, but also mode field adaptors. This paper summarizes recent achievements in the area of development and fabrication of high-power passive fiber components. The principles of operation and basic design and fabrication criteria, which have to be taken into account while designing the aforementioned components, are explained in detail. The most recent impressive achievements are summarized and described.

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Mode field adaptation between single-mode fiber and large mode area fiber by thermally expanded core technique

Cited by 28 publications

References 15 publications

High power all fiber mid-IR supercontinuum generation in a ZBLAN fiber pumped by a 2 μm MOPA system

High power all fiber mid-IR supercontinuum generation in a ZBLAN fiber pumped by a 2 μm MOPA system

All-Fiber Laser With Agile Mode-Switching Capability Through Intra-Cavity Conversion

High-Power Passive Fiber Components for All-Fiber Lasers and Amplifiers Application—Design and Fabrication

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