The Design of &gt;2000-nm, ∼100-MHz Ultrafast Tm-Doped Fiber Soliton Laser Source

Feng, Tianli; Shang, Jingcheng; Zhao, Shengzhi; Liu, Yizhou; Zhao, Yuefeng; Song, Yu; Li, Tao; Wang, Chun; Yang, Kejian; Hu, Ping; Mao, Jiajia

doi:10.1109/jlt.2021.3130405

Cited by 11 publications

(3 citation statements)

References 68 publications

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“…For example, a 2.108 μm high-energy nanosecond pulse from an all-fiber holmium-doped amplification system has been applied in ZGP-OPO and obtained a mid-infrared conversion efficiency of up to 59% [ 7 ] . By employing thulium-doped fiber (TDF) [ 10 , 11 ] , thulium-holmium co-doped fiber (THDF) [ 12 ] , holmium-doped fiber (HDF) [ 13 , 14 ] , pulsed laser at wavelengths exceeding 2 μm have been achieved. Compared with TDF and THDF, HDF pumped by a 1950 nm laser has higher lasing efficiency, especially in the emission range of 2050–2150 nm [ 15 ] .…”

Section: Introductionmentioning

confidence: 99%

2.1 m, high-energy dissipative soliton resonance from a holmium-doped fiber laser system

Zhao

Zhang²,

Zhu³

et al. 2023

High Pow Laser Sci Eng

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We propose a 2.1 μm high energy dissipative soliton resonant (DSR) fiber laser system based on mode-locked seed laser and dual-stage amplifiers. In the seed laser, nonlinear amplifying loop mirror technique is employed to realize mode-locking. The utilization of in-band pump scheme and long gain fiber enables effective exciting 2.1 μm pulses. A section of ultra-high numerical aperture fiber (UHNAF) with normal dispersion and high nonlinearity and an output coupler with large coupling ratio are used to achieve high energy DSR. By optimizing the UHNAF length to 55 m, a 2103.7 nm, 88.1 nJ DSR with a 3-dB spectral bandwidth of 0.48 nm and a pulse width of 17.1 ns is obtained under proper intracavity polarization state and pump power. The output power and conversion efficiency are 0.233 W and 4.57 %, respectively, both an order of magnitude higher than previously reported holmium-doped DSR seed lasers. Thanks to the high output power and

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Section: Introductionmentioning

confidence: 99%

2.1 m, high-energy dissipative soliton resonance from a holmium-doped fiber laser system

Zhao

Zhang²,

Zhu³

et al. 2023

High Pow Laser Sci Eng

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“…The seed soliton pulse with the s-polarized orientation is generated from a nonlinear polarization rotation-based Tmdoped mode-locking fiber oscillator, 25) which delivers an average power of 110 mW with the peak-to-peak power fluctuation of <2.1% (2.3 mW) at the pump power of 1.45 W [see Fig. 2(a)].…”

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confidence: 99%

Investigation on the spectrum smoothing effect in an ultrafast Tm-doped fiber chirped pulse amplifier

Shang

Zhao

Liu

et al. 2022

Appl. Phys. Express

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We investigate the spectrum smoothing effect of the amplified soliton pulse in an ultrafast Tm-doped fiber chirped pulse amplifier (CPA), in which the soliton pulse is amplified to 7.3 W with a pulse duration of ~350 fs. The experimental investigation reveals that the spectrum smoothing effect arises from the polarization filtering effect of the grating-based pulse compressor, which is further confirmed by a theoretical simulation. This effect not only smooths the amplified laser spectrum, but also improves the pulse contrast ratio.

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“…4) Generally, the >2000 nm emission wavelength is required to avoid the water vapor absorption when the ultrafast fiber laser is applied in free space, such as pumping optical parametric oscillator (OPO) and high resolution astronomical spectrographs. 4,5) With the gain fibers of Tm-doped, Tm/Hoco-doped or Ho-doped fiber, the >2000 nm ultrafast fiber laser can be realized. Although Tm-doped fiber has a wide gain spectrum, it is challenging to obtain >2000 nm emission for Tm-doped fiber laser due to the poor gain in the long wavelength region.…”

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confidence: 99%

Passively mode-locked dual-wavelength Ho-doped fiber laser with noise-like pulse regime

Mao

Zhou

et al. 2022

Jpn. J. Appl. Phys.

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We experimentally and theoretically investigate the noise-like pulse (NLP) generation in a nonlinear polarization rotation (NPR)-based mode-locked Ho-doped fiber ring laser, which can optionally operate in the dual-wavelength regime. By carefully changing the pump power and polarization state, the dual-wavelength NLP regime at 2041.9 nm and 2083.3 nm is finally achieved, which correspond to a pulse energy of 11.84 nJ and a pulse duration of 849 fs. It is believed to be the first report on the dual-wavelength NLP operation from the previously reported Ho-doped fiber lasers.

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The Design of >2000-nm, ∼100-MHz Ultrafast Tm-Doped Fiber Soliton Laser Source

Cited by 11 publications

References 68 publications

2.1 m, high-energy dissipative soliton resonance from a holmium-doped fiber laser system

2.1 m, high-energy dissipative soliton resonance from a holmium-doped fiber laser system

Investigation on the spectrum smoothing effect in an ultrafast Tm-doped fiber chirped pulse amplifier

Passively mode-locked dual-wavelength Ho-doped fiber laser with noise-like pulse regime

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