High-Energy Passively Mode-Locked Raman Fiber Laser Pumped by a CW Multimode Laser

Kuang, Qingqiang; Zhan, Li; Gu, Zhaochang; Wang, Zhiqiang

doi:10.1109/jlt.2014.2375339

Cited by 19 publications

(5 citation statements)

References 24 publications

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“…Therefore, NPR could act like an effective fast SA. NPR modelocked Raman fiber lasers have been well studied and reported by many research groups [35][36][37][38]. For example, Kuang et al demonstrated a passively mode-locked Raman fiber laser based on NPR with a high nonlinear fiber (HNLF) cavity [36].…”

Section: Nonlinear Polarization Rotationmentioning

confidence: 99%

“…Compared with fiber oscillators, ASE sources have much lower intensity fluctuation, and thus are more suitable to serve as the pump for mode-locked Raman fiber laser. Secondly, an all-fiber Lyot filter was embedded into the cavity to trigger the dissipative [36] soliton (DS), which is a more stable attractor and could have higher pulse energy than conventional soliton [8]. Last but not least, we shortened the cavity length by applying a piece of 70 m long fiber with high Raman gain coefficient as the gain medium.…”

Section: Nonlinear Polarization Rotationmentioning

confidence: 99%

“…4 (a) Scheme of the NPR-based mode-locked Raman fiber laser with a HNLF cavity. (b) Pulse train and (c) expanded temporal characteristic of the Raman pulses[36]…”

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confidence: 99%

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Ultrafast Raman fiber laser: a review and prospect

Zhou

Pan

et al. 2022

PhotoniX

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Ultrafast Raman fiber laser has been proved to be an effective method to obtain ultrafast optical pulses at special wavelength. Yet, compared with conventional rare-earth doped counterparts, it is challenging for Raman fiber lasers to generate pulses with high pulse energy and short pulse duration. Here, we review three categories of ultrafast Raman fiber laser technologies and give detailed discussions on the advantages and challenges of each. In regards to mode-locking, different saturable-absorbers-based fiber lasers are compared and their common problem resulting from long cavity length are discussed. In terms of synchronously-pumping, several approaches to match the repetition rate of pulsed pump with the length of Raman fiber cavity are discussed, while the technical complexity of each method is analyzed. Moreover, the recently developed technology termed as nonlinear optical gain modulation (NOGM) is introduced, which turns out to be a simple and quality solution to generate high-energy femtosecond pulses with wavelength agility. Compared with the others, NOGM gathers various advantages including simple structure, long-term stability, high pulse energy and short pulse duration, which may effectively promote application expansion of ultrafast Raman fiber laser in the near future.

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Section: Nonlinear Polarization Rotationmentioning

confidence: 99%

Section: Nonlinear Polarization Rotationmentioning

confidence: 99%

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Ultrafast Raman fiber laser: a review and prospect

Zhou

Pan

et al. 2022

PhotoniX

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“…[12,13] The materialbased SAs often suffer thermal damage and oxidation, thus limiting the intracavity laser power and long-term stability of the fiber laser. The alternative techniques to solve the problems are the use of SAs based on fiber nonlinearity, such as nonlinear polarization evolution, [14,15] nonlinear optical loop mirror (NOLM), [16,17] nonlinear amplifying loop mirror (NALM), [18,19] Mamyshev oscillator, [20,21] and nonlinear multimode interference. [22,23] Among them, phase-biased NOLM and NALM would be favored because of fast recovery time, high damage threshold, good self-starting (SS) ability, low-cost, and the possibility of all-polarization-maintaining (PM) fiber implementation.…”

Section: Introductionmentioning

confidence: 99%

Suppression of multi-pulse formation in all-polarization-maintaining figure-9 erbium-doped fiber mode-locked laser*

Shi¹,

Dong²,

Pan³

et al. 2021

Chinese Phys. B

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We report on a novel architecture to suppress the multi-pulse formation in an all-polarization-maintaining figure-9 erbium-doped fiber laser under high pump power. A 2×2 fiber coupler is introduced into the phase-biased nonlinear amplifying loop mirror to extract part of intracavity laser power as a laser output, and the dependence of output couple ratio of fiber coupler on the mode-locking state is experimentally investigated. The intracavity nonlinear effect is mitigated by lowering the intracavity laser power, which is conducive to avoiding the multi-pulse formation. In the meantime, the loss-imbalance induced by fiber coupler is helpful in improving the self-starting ability. With the proposed laser structure, the multiple pulse formation can be suppressed and high power single pulse train can be obtained. The laser emits three pulse trains which is convenient for some applications. Finally, the output power values of three ports are 5.3 mW, 51.3 mW, and 13.2 mW, respectively. The total single pulse output power is 69.8 mW, which is more than 10 times the result without OC2. The total slope efficiency is about 10.1%. The repetition rate of three pulse trains is 21.17 MHz, and the pulse widths are 2.8 ps, 2.63 ps, and 6.66 ps, respectively.

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“…Until now, passively mode-locked Raman fiber lasers have been demonstrated using nonlinear saturable absorption effect based on various techniques, such as dissipative four-wave mixing, 16) dissipative Faraday instability, 17,18) broadband two-dimensional material saturable absorbers, [19][20][21][22] semiconductor saturable absorber mirror, 23) nonlinear amplifying loop mirror, 24,25) and nonlinear polarization rotation (NPR). 26,27) However, most mode-locked Raman fiber lasers adopt long cavities to acquire enough gain and operate at fundamental cavity frequencies, leading to a low pulse repetition rate. The above shortcoming of mode-locked Raman fiber lasers will greatly limit their applications in many areas, such as communication, lithography and so on.…”

mentioning

confidence: 99%

Ultra-high order harmonic mode-locking of a Raman fiber laser

Chen

Liu

et al. 2019

Appl. Phys. Express

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An ultra-high order harmonically mode-locked Raman fiber laser with a high signal-to-noise ratio has been proposed and demonstrated. We apply the nonlinear polarization rotation (NPR) technique as the mode-locker in the Raman fiber laser. The underlying harmonic mode-locking (HML) mechanism is discussed to achieve ultra-high order HML in the Raman fiber laser. Up to 5044th ultra-high order HML has been obtained with a signal-to-noise ratio of up to 42.5 dB. To the best of our knowledge, this is the highest order of passive HML achieved so far from a Raman fiber laser using NPR or similar techniques.

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High-Energy Passively Mode-Locked Raman Fiber Laser Pumped by a CW Multimode Laser

Cited by 19 publications

References 24 publications

Ultrafast Raman fiber laser: a review and prospect

Ultrafast Raman fiber laser: a review and prospect

Suppression of multi-pulse formation in all-polarization-maintaining figure-9 erbium-doped fiber mode-locked laser*

Ultra-high order harmonic mode-locking of a Raman fiber laser

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