Adaptive mode solver for varying refractive index profile’s waveguides with modified spectral element method

Zhu, Jianxin; Hao, Yang

doi:10.1364/josab.34.000538

J. Opt. Soc. Am. B

2017

DOI: 10.1364/josab.34.000538

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Adaptive mode solver for varying refractive index profile’s waveguides with modified spectral element method

Jianxin Zhu

Yang Hao

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Cited by 5 publications

(1 citation statement)

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“…Mid-infrared (MIR) lasers in the wavelength band of ~3.0 µm play an increasingly significant role in practical applications in terms of remote sensing, free-space communication, frequency metrology and gas sensing because of their high transmittance in several atmospheric gases (N 2 , O 2 , etc) and due to their strong absorption by various molecules (CO 2 , N 2 O, CH 4 , etc) [1,2]. Meanwhile, due to the strong absorption in water (absorption coefficient ~10 4 cm −1 ), these laser sources have gained significant attention in medical applications, such as dental tissue ablation, vitreoretinal surgery and cardiovascular surgery [3,4].…”

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confidence: 99%

Continuous-wave-tunable and passively Q-switched 2.9 µm Ho,Pr:LiLuF₄ lasers

et al. 2018

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A wavelength tuning experiment of a continuous-wave Ho,Pr:LiLuF 4 bulk laser operating at 2900 nm has been demonstrated for the first time. Two wavelength-tunable bands in the ranges of 2830-2902 nm and 2945-2956 nm were obtained. In addition, by using a semiconductor saturable absorber mirror, a high-peak-power passively Q-switched operation was realized. The shortest pulse width was 395 ns with a repetition rate of 7.29 kHz, corresponding to a peak power of 51.1 W. The results indicate the potential of Ho,Pr:LLF crystals for continuouswave-tunable and passively Q-switched lasers operating at ~3.0 µm.

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mentioning

confidence: 99%

Continuous-wave-tunable and passively Q-switched 2.9 µm Ho,Pr:LiLuF₄ lasers

et al. 2018

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Two-color pump schemes for Er-doped tellurite fiber lasers and amplifiers at 2.7–2.8 µm

Anashkina¹,

Andrianov²,

Дорофеев³

et al. 2019

Laser Phys. Lett.

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We propose two-color pump schemes for CW Er-doped tellurite fiber lasers and amplifiers in the 2.7–2.8 µm range at the transition. The use of the first pump wavelength of 0.98 µm () or 1.56 µm () and the second pump wavelength of 1.7 µm () allows obtaining gain at relatively low powers. We have performed a theoretical study of laser operation under two-color pump on the basis of the experimentally measured parameters of the specially prepared Er-doped tellurite fiber from TeO2–ZnO–La2O3–Na2O glass. It has been shown numerically that, for an optimal fiber length, the small-signal gain may exceed 18 dB and laser generation may be achieved with a relatively low threshold of a few hundreds of mW and a maximum slope efficiency can be ~40%. In addition, we have demonstrated in experiment a prototype of the power-scalable Er silica fiber source generating simultaneously near 1.56 and 1.7 µm, which may be used for implementing the proposed two-color pumped laser and amplifier.

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Based on ZrO₂/graphene/ZrO₂ Q-switched mid-infrared Er³⁺:ZBLAN fiber laser

Zhang

Ning

et al. 2019

Laser Phys. Lett.

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ZrO 2 nanoparticles with an average size of ~40 nm are prepared by an electrical arc discharge method. Here, we fabricated a saturable absorber mirror (SAM) by spin-coating ZrO 2 , graphene and ZrO 2 onto a homemade high-reflective mirror. Stable Q-switching operation in Er 3+ :ZBLAN fiber laser is achieved by using the as-prepared ZrO 2 /graphene/ ZrO 2 SAM. Compared with ZrO 2 SAM, the ZrO 2 /graphene/ZrO 2 SAM has a lower Q-switching threshold and wider range of repetition rates. The maximum average output power of 285 mW is obtained with the repetition rate of 106.61 kHz, pulse width of 0.908 µs and timing jitter of 0.514% at the pump power of 4.84 W by using the ZrO 2 /graphene/ ZrO 2 SAM.

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Adaptive mode solver for varying refractive index profile’s waveguides with modified spectral element method

Cited by 5 publications

References 35 publications

Continuous-wave-tunable and passively Q-switched 2.9 µm Ho,Pr:LiLuF₄ lasers

Continuous-wave-tunable and passively Q-switched 2.9 µm Ho,Pr:LiLuF₄ lasers

Two-color pump schemes for Er-doped tellurite fiber lasers and amplifiers at 2.7–2.8 µm

Based on ZrO₂/graphene/ZrO₂ Q-switched mid-infrared Er³⁺:ZBLAN fiber laser

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Adaptive mode solver for varying refractive index profile’s waveguides with modified spectral element method

Cited by 5 publications

References 35 publications

Continuous-wave-tunable and passively Q-switched 2.9 µm Ho,Pr:LiLuF4 lasers

Continuous-wave-tunable and passively Q-switched 2.9 µm Ho,Pr:LiLuF4 lasers

Two-color pump schemes for Er-doped tellurite fiber lasers and amplifiers at 2.7–2.8 µm

Based on ZrO2/graphene/ZrO2 Q-switched mid-infrared Er3+:ZBLAN fiber laser

Contact Info

Product

Resources

About

Continuous-wave-tunable and passively Q-switched 2.9 µm Ho,Pr:LiLuF₄ lasers

Continuous-wave-tunable and passively Q-switched 2.9 µm Ho,Pr:LiLuF₄ lasers

Based on ZrO₂/graphene/ZrO₂ Q-switched mid-infrared Er³⁺:ZBLAN fiber laser