Splice Loss Optimization of a Photonic Bandgap Fiber via a High V-Number Fiber

Gao, Shoufei; Tian, Cuiping

doi:10.1109/lpt.2014.2349519

Cited by 13 publications

(4 citation statements)

References 12 publications

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“…There is no Raman power saturation in the current works, so if more pump power were coupled into the HC-PCFs, a higher output Raman power would be obtained. A useful way is to use a higher-power 1.5 µm pump source and introduce transition fibers to reduce the fusion-splice loss between HC-PCFs and solid-core fibers [62]. To realize an all-fiber structure, it is necessary to solve the problem of HC-PCFs being fusion-spliced with the solid-core fibers in the gas-filled state, which may face the danger of gas leakage and combustion [63].…”

Section: Discussionmentioning

confidence: 99%

Application of Hollow-Core Photonic Crystal Fibers in Gas Raman Lasers Operating at 1.7 μm

Jun

Wang

2021

Crystals

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A 1.7 μm pulsed laser plays an important role in bioimaging, gas detection, and so on. Fiber gas Raman lasers (FGRLs) based on hollow-core photonic crystal fibers (HC-PCFs) provide a novel and effective method for fiber lasers operating at 1.7 μm. Compared with traditional methods, FGRLs have more advantages in generating high-power 1.7 μm pulsed lasers. This paper reviews the studies of 1.7 μm FGRLs, briefly describes the principle and characteristics of HC-PCFs and gas-stimulated Raman scattering (SRS), and systematical characterizes 1.7 μm FGRLs in aspects of output spectral coverage, power-limiting factors, and a theoretical model. When the fiber length and pump power are constant, a relatively high gas pressure and appropriate pump peak power are the key to achieving high-power 1.7 μm Raman output. Furthermore, the development direction of 1.7 μm FGRLs is also explored.

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Section: Discussionmentioning

confidence: 99%

Application of Hollow-Core Photonic Crystal Fibers in Gas Raman Lasers Operating at 1.7 μm

Jun

Wang

2021

Crystals

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“…The interface coupling loss between a SMF and a tapered HOF nanospike shown in Fig. 1(b) can be calculated using a full vector method [42], [43], The equations are described in terms of the normalized vector electric field E i and magnetic field H i of the HE 11 mode of the SMF, and the corresponding fields E t and H t of the subwavelength core HOF. The calculated modes are normalized to carry 1 W power,…”

Section: Optimized Interface Coupling Lossmentioning

confidence: 99%

“…This full-vector numerical method takes into account important factors such as the mode field diameter (MFD), mode shape and the Fresnel reflection between two fiber interfaces [42], [43]. All these factors are critical in determining the coupling loss.…”

Section: Optimized Interface Coupling Lossmentioning

confidence: 99%

Analysis of Coupling Losses for All-Fiber Integration of Subwavelength Core Hybrid Optical Fibers

Xiao

Dong

et al. 2018

IEEE Photonics J.

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Coupling losses for all-fiber integration of subwavelength core hybrid optical fibers have been first analyzed and optimized in detail. We have taken into account the effects of mode size, mode shape, effective refractive index, tapering beat length, interface, and endface reflections on the coupling loss. By optimizing parameters such as the subwavelength core diameter, single mode condition, and transition length, the coupling losses can be reduced. In addition, the influence of the core fabrication and misalignment tolerances have been explored. The results will benefit the all-fiber integration of hybrid optical fibers and their nanoengineering realization.

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“…The splicing loss of other reports about the splicing between the solid-core fiber and HC-PCF was about 1.8 dB [18] and 0.79 dB [19] . In 2014, the intermediate fiber was used between the HC-PCF and single mode fiber (SMF), and the overall insertion loss was 0.73 dB [20] . The main reason for the insertion loss is the mismatch of the mode field.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient and stable coupling of kilowatt-level continuous wave laser into hollow-core fibers

et al. 2022

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Fiber gas lasers based on gas-filled hollow-core fibers (HCFs) perfectly combine the advantages of fiber lasers and gas lasers and have obtained fast development in the past years. However, stable and efficient coupling of high-power pump lasers into the HCFs is one of the key problems to be solved. In this paper, we study the coupling of high-power continuous wave fiber lasers into anti-resonant HCFs through an end-cap. By optimizing the splicing parameters, a maximum laser power of 1167 W was injected into the 1-m-long HCFs, and 1021 W was obtained at the output end, giving a total transmission efficiency of ∼87.5%. A more than 1 h test showed the stability of such a coupling method. Meanwhile, the laser beam quality was well maintained. This work opens new opportunities for stable and highly efficient coupling of high-power lasers into HCFs, which is significant for its applications in many other fields besides high-power fiber gas lasers, such as high-power laser delivering.

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Splice Loss Optimization of a Photonic Bandgap Fiber via a High V-Number Fiber

Cited by 13 publications

References 12 publications

Application of Hollow-Core Photonic Crystal Fibers in Gas Raman Lasers Operating at 1.7 μm

Application of Hollow-Core Photonic Crystal Fibers in Gas Raman Lasers Operating at 1.7 μm

Analysis of Coupling Losses for All-Fiber Integration of Subwavelength Core Hybrid Optical Fibers

Highly efficient and stable coupling of kilowatt-level continuous wave laser into hollow-core fibers

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