Thulium-doped mode-locked all-fiber laser based on NALM and carbon nanotube saturable absorber

Chernysheva, Maria; Krylov, A. A.; Kryukov, P. G.; Arutyunyan, N. R.; Pozharov, A. S.; Obraztsova, E. D.; Dianov, E. M.

doi:10.1364/oe.20.00b124

Cited by 73 publications

(28 citation statements)

References 15 publications

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“…In addition, ultrashort pulse generation can be ensured using mechanisms based on the nonlinear optical Kerr-effect, such as NPE49, nonlinear optical or amplifying loop mirrors (NOLM or NALM)50. Recently, a combination of material SAs and nonlinear effects has been used to demonstrate its potential for higher-power and higher-quality ultrashort pulse formation345152. Though both graphene and s-TMDs offer wideband operation, they typically feature small modulation depths4553.…”

Section: Methodsmentioning

confidence: 99%

Double-Wall Carbon Nanotube Hybrid Mode-Locker in Tm-doped Fibre Laser: A Novel Mechanism for Robust Bound-State Solitons Generation

Chernysheva

Bednyakova

Araimi

et al. 2017

Sci Rep

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The complex nonlinear dynamics of mode-locked fibre lasers, including a broad variety of dissipative structures and self-organization effects, have drawn significant research interest. Around the 2 μm band, conventional saturable absorbers (SAs) possess small modulation depth and slow relaxation time and, therefore, are incapable of ensuring complex inter-pulse dynamics and bound-state soliton generation. We present observation of multi-soliton complex generation in mode-locked thulium (Tm)-doped fibre laser, using double-wall carbon nanotubes (DWNT-SA) and nonlinear polarisation evolution (NPE). The rigid structure of DWNTs ensures high modulation depth (64%), fast relaxation (1.25 ps) and high thermal damage threshold. This enables formation of 560-fs soliton pulses; two-soliton bound-state with 560 fs pulse duration and 1.37 ps separation; and singlet+doublet soliton structures with 1.8 ps duration and 6 ps separation. Numerical simulations based on the vectorial nonlinear Schr¨odinger equation demonstrate a transition from single-pulse to two-soliton bound-states generation. The results imply that DWNTs are an excellent SA for the formation of steady single- and multi-soliton structures around 2 μm region, which could not be supported by single-wall carbon nanotubes (SWNTs). The combination of the potential bandwidth resource around 2 μm with the soliton molecule concept for encoding two bits of data per clock period opens exciting opportunities for data-carrying capacity enhancement.

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Section: Methodsmentioning

confidence: 99%

Double-Wall Carbon Nanotube Hybrid Mode-Locker in Tm-doped Fibre Laser: A Novel Mechanism for Robust Bound-State Solitons Generation

Chernysheva

Bednyakova

Araimi

et al. 2017

Sci Rep

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“…In [70] first introduced this technique to Tm-doped fibre lasers ( Figure 18A). The NALM is formed by a 20:80 fibre coupler and dispersion managed by normal dispersion germanium-silica fibre (GeO 2 /SiO 2 ) [239].…”

Section: Thulium (Tm)-doped Fibre Lasersmentioning

confidence: 99%

Carbon nanotubes for ultrafast fibre lasers

et al. 2016

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Carbon nanotubes (CNTs) possess both remarkable optical properties and high potential for integration in various photonic devices. We overview, here, recent progress in CNT applications in fibre optics putting particular emphasis on fibre lasers. We discuss fabrication and characterisation of different CNTs, development of CNTbased saturable absorbers (CNT-SA), their integration and operation in fibre laser cavities putting emphasis on stateof-the-art fibre lasers, mode locked using CNT-SA. We discuss new design concepts of high-performance ultrafast operation fibre lasers covering ytterbium (Yb), bismuth (Bi), erbium (Er), thulium (Tm) and holmium (Ho)-doped fibre lasers.

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“…그 중 펨토초 레벨의 극초단 펄스 레이저를 구현하기 위해서는 수 동형 모드잠금 방법을 사용하여야 하는 것으로 알려져 있다. 특히 펨토초 극초단 펄스를 생성하기 위해서는 일반적으로 반응시간이 극히 짧은 수동형 포화흡수체의 비선형 흡수 현 상을 이용하거나 편광기를 공진기 내부에 삽입하여 공진하 는 빔이 광섬유내 에서 Kerr 비선형 현상으로 인해 편광이 [15,16] Carbon Nanotube, [17] Graphene, [18][19][20][21] Topological Insulator [22] [27]…”

Section: 서 론unclassified

Passively Mode-Locked 1.93-㎛ All-Fiberized Femtosecond MOPA Laser Using a Gold-Deposited Side-Polished Fiber

정민완¹,

구준회²,

이주한³

2014

Korean Journal of Optics and Photonics

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We experimentally demonstrate the use of a gold-deposited side-polished fiber as a 2-μm-band polarizing device to produce mode-locked pulses from a thulium/holmium-codoped fiber ring cavity. The mode-locking effect was induced by nonlinear transmission caused by the gold-deposited side-polished fiber, due to nonlinear polarization rotation of the oscillated beam within the fiberized cavity. It is also shown that ~558-fs pulses with a peak power of ~6.7 kW could readily be produced at a wavelength of 1935 nm through subsequent thulium/holmium-codoped fiber amplification, due to the higher-order soliton compression effect.

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Thulium-doped mode-locked all-fiber laser based on NALM and carbon nanotube saturable absorber

Cited by 73 publications

References 15 publications

Double-Wall Carbon Nanotube Hybrid Mode-Locker in Tm-doped Fibre Laser: A Novel Mechanism for Robust Bound-State Solitons Generation

Double-Wall Carbon Nanotube Hybrid Mode-Locker in Tm-doped Fibre Laser: A Novel Mechanism for Robust Bound-State Solitons Generation

Carbon nanotubes for ultrafast fibre lasers

Passively Mode-Locked 1.93-㎛ All-Fiberized Femtosecond MOPA Laser Using a Gold-Deposited Side-Polished Fiber

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