Soliton mode-locked fiber laser based on topological insulator Bi 2 Te 3 nanosheets at 2 μm

We reported diverse soliton operations in a thulium/holmium-doped fiber laser by taking advantage of a tapered fiber-based topological insulator (TI) Bi2Te3 saturable absorber (SA). The SA had a nonsaturable loss of ∼53.5% and a modulation depth of 9.8%. Stable fundamentally mode-locked solitons at 1909.5 nm with distinct Kelly sidebands on the output spectrum, a pulse repetition rate of 21.5 MHz, and a measured pulse width of 1.26 ps were observed in the work. By increasing the pump power, both bunched solitons with soliton number up to 15 and harmonically mode-locked solitons with harmonic order up to 10 were obtained. To our knowledge, this is the first report of both bunched solitons and harmonically mode-locked solitons in a fiber laser at 2 μm region incorporated with TIs.

[1]  James P. Gordon,et al.  Experimental observation of picosecond pulse narrowing and solitons in optical fibers (A) , 1980 .

[2]  Ke Yin,et al.  Thirteen watt all-fiber mid-infrared supercontinuum generation in a single mode ZBLAN fiber pumped by a 2 μm MOPA system. , 2014, Optics letters.

[3]  Junsu Lee,et al.  All-normal-dispersion dissipative-soliton fiber laser at 1.06 µm using a bulk-structured Bi2Te3 topological insulator-deposited side-polished fiber , 2014 .

[4]  Jaroslaw Sotor,et al.  Mode-locked Er-doped fiber laser based on liquid phase exfoliated Sb2Te3 topological insulator , 2014 .

[5]  D. Hsieh,et al.  A topological Dirac insulator in a quantum spin Hall phase , 2008, Nature.

[6]  Zhengqian Luo,et al.  Topological-Insulator Passively Q-Switched Double-Clad Fiber Laser at 2 $\mu$m Wavelength , 2014, IEEE Journal of Selected Topics in Quantum Electronics.

[7]  Shuangchun Wen,et al.  Ultra-short pulse generation by a topological insulator based saturable absorber , 2012 .

[8]  Shuangchun Wen,et al.  Ytterbium-doped fiber laser passively mode locked by few-layer Molybdenum Disulfide (MoS2) saturable absorber functioned with evanescent field interaction , 2014, Scientific Reports.

[9]  Kyunghwan Oh,et al.  Mode-locking of Er-doped fiber laser using a multilayer MoS2 thin film as a saturable absorber in both anomalous and normal dispersion regimes. , 2014, Optics express.

[10]  Junsu Lee,et al.  A femtosecond pulse fiber laser at 1935 nm using a bulk-structured Bi2Te3 topological insulator. , 2014, Optics express.

[11]  Heping Li,et al.  Ultrafast erbium-doped fiber laser mode-locked by a CVD-grown molybdenum disulfide (MoS2) saturable absorber. , 2014, Optics express.

[12]  A. Luo,et al.  Vector dissipative soliton resonance in a fiber laser. , 2013, Optics express.

[13]  S. Wen,et al.  Molybdenum disulfide (MoS₂) as a broadband saturable absorber for ultra-fast photonics. , 2014, Optics express.

[14]  Martin Richardson,et al.  High peak-power mid-infrared ZnGeP₂ optical parametric oscillator pumped by a Tm:fiber master oscillator power amplifier system. , 2014, Optics letters.

[15]  Michel J. F. Digonnet,et al.  Advances in 2-μm Tm-doped mode-locked fiber lasers , 2014 .

[16]  Jaroslaw Sotor,et al.  Mode-locking in Er-doped fiber laser based on mechanically exfoliated Sb_2Te_3 saturable absorber , 2014 .

[17]  Dietmar Kracht,et al.  Pulse characteristics of a passively mode-locked thulium fiber laser with positive and negative cavity dispersion. , 2010, Optics express.

[18]  Le Nguyen Binh,et al.  Ultra-Fast Fiber Lasers: Principles and Applications with MATLAB® Models , 2010 .

[19]  D. Tang,et al.  Bunch of restless vector solitons in a fiber laser with SESAM. , 2009, Optics express.

[20]  Philippe Emplit,et al.  Towards mode-locked fiber laser using topological insulators , 2012 .

[21]  Shuangchun Wen,et al.  Wavelength-tunable picosecond soliton fiber laser with Topological Insulator: Bi2Se3 as a mode locker. , 2012, Optics express.

[22]  P. Grelu,et al.  Rains of solitons in a fiber laser. , 2009, Optics express.

[23]  D. Tang,et al.  Polarization rotation vector solitons in a graphene mode-locked fiber laser. , 2012, Optics express.

[24]  Masud Mansuripur,et al.  Femtosecond laser pulse generation with a fiber taper embedded in carbon nanotube/polymer composite. , 2007, Optics letters.

[25]  C. Lu,et al.  Bound soliton fiber laser , 2002, 0910.5806.

[26]  A. Pal,et al.  "All-fiber" tunable laser in the 2 μm region, designed for CO2 detection. , 2012, Applied optics.

[27]  Yves Jaouen,et al.  Eyesafe high peak power pulsed fiber lasers limited by fiber nonlinearity , 2014 .

[28]  M. Liu,et al.  2 GHz passively harmonic mode-locked fiber laser by a microfiber-based topological insulator saturable absorber. , 2013, Optics letters.