Coherence analysis of noise-like pulses generated by an erbium-doped fiber mode-locked laser

Abstract

The noise-like pulses (NLPs) with tunable fraction of the pedestal height in the whole intensity autocorrelation (AC) trace are numerically demonstrated in the designed erbium-doped fiber (EDF) mode-locked laser, which contains the saturable absorber (SA) with nonlinear polarization rotation (NPR), sinusoidal-shaped or Gaussian-shaped filter, two segments of EDFs, and two pieces of single-mode fibers (SMFs) with normal dispersion and anomalous dispersion, respectively. The pedestal ratio of the intensity AC trace can be tuned by changing the gain saturation energies of EDFs. The results show that when the net cavity dispersion is 1.06 ps², the tuning range of the pedestal ratio for the NLPs can reach its maximum values, which are 0.51–0.89 and 0.58–0.88 for the sinusoidal-shaped and Gaussian-shaped filters, respectively. In addition, an appropriate choice of filter bandwidth is also conducive to obtain a wide range of the tuning pedestal ratio for the intensity AC trace.

Keywords

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References

[[1]] Sergey S, Sergey K, Sergey K, et al.. Three key regimes of single pulse generation per round trip of all-normal-dispersion fiber lasers mode-locked with nonlinear polarization rotation[J]. Optics express, 2012, 20(24): 27447-27453,

[[2]] Nelson L E, Jones D J, Tamura K, et al.. Ultrashort-pulse fiber ring lasers[J]. Applied physics, 1997, B65(2): 277-294,

[[3]] Han X X. Conventional soliton or stretched pulse delivered by nanotube-mode-locked fiber laser[J]. Applied optics, 2018, 57(4): 807-811,

[[4]] Chong A, Wright L G, Wise F W. Ultrafast fiber lasers based on self-similar pulse evolution: a review of current progress[J]. Reports on progress in physics, 2015, 78(11): 113901,

[[5]] Grelu P, Akhmediev N. Dissipative solitons for mode-locked lasers[J]. Nature photonics, 2012, 6(2): 84-92,

[[6]] Chang W, Ankiewicz A, Soto-Crespo J M, et al.. Dissipative soliton resonances[J]. Physical review E, 2008, 78(2): 023830,

[[7]] Horowitz M, Barad Y, Silberberg Y. Noise-like pulses with a broadband spectrum generated from an erbium-doped fiber laser[J]. Optics letters, 1997, 22(11): 799-801,

[[8]] Li X, Zhang S, Liu J, et al.. Using reverse saturable absorption to boost broadband noise-like pulses[J]. Journal of lightwave technology, 2020, 38(14): 3769-3774,

[[9]] Meng F, Lapre C, Billet C, et al.. Intracavity incoherent supercontinuum dynamics and rogue waves in a broadband dissipative soliton laser[J]. Nature communication, 2021, 12: 5567,

[[10]] Li C, Kong C, Wong K K Y. High energy noise-like pulse generation from a mode-locked thulium-doped fiber laser at 1.7 µm[J]. IEEE photonics journal, 2019, 99: 1

[[11]] Boucon A, Barviau B, Fatome J, et al.. Noise-like pulses generated at high harmonics in a partially-mode-locked km-long Raman fiber laser[J]. Applied physics, 2012, 106(2): 283-287,

[[12]] Li J, Wang C, Wang P. Tunable noise-like pulse and Q-switched erbium-doped fiber laser[J]. Optics express, 2022, 30(4): 4768-4781,

[[13]] Mashiko Y, Fujita E, Tokurakawa M. Tunable noise-like pulse generation in mode-locked Tm fiber laser with a SESAM[J]. Optics express, 2016, 24(23): 26515,

[[14]] Li X, Zhang S, Yang Z. . Noise-like pulse fiber lasers[C], 2022 New York IEEE 1-3

[[15]] Keren S, Horowitz M. . Interrogation of fiber gratings using spectral interferometry of a low-coherence light source[C], 2020 New York IEEE

[[16]] Marschall S, Klein T, Wieser W, et al.. Fourier domain mode-locked swept source at 1050 nm based on a tapered amplifier[J]. Optics express, 2010, 18(15): 15820,

[[17]] Keren S, Brand E, Levi Y, et al.. Data storage in optical fibers and reconstruction by use of low-coherence spectral interferometry[J]. Optics letters, 2022, 27(2): 125-127,

[[18]] Sergey K, Sergey K, Sergey S, et al.. Generation of double-scale femto/picosecond optical lumps in mode-locked fiber lasers[J]. Optics express, 2009, 17(23): 20707,

[[19]] Zhao Q, Pan W W, Zeng X L, et al.. Partially coherent noise-like pulse generation in amplified spontaneous Raman emission[J]. Applied optics, 2018, 57(9): 2282-2286,

[[20]] Xu R Q, Xu F J, Song Y R, et al.. Impact of spectral filtering on pulse breaking-up and noise-like pulse generation in all-normal dispersion fiber lasers[J]. Optics express, 2020, 28(15): 21348-21358,

[[21]] Li X L, Zhang S M, Liu J M, et al.. Efficient method to improve the distribution probability of dissipative soliton and noise-like pulse in all-normal-dispersion fiber lasers[J]. Optics express, 2022, 30(4): 6161-6175,

[[22]] Liu S, Yan F, Li Y, et al.. Noise-like pulse generation from a thulium-doped fiber laser using nonlinear polarization rotation with different net anomalous dispersion[J]. Photonics research, 2016, 4(6): 318-321,

[[23]] Tang D Y, Zhao L M, Zhao B. Soliton collapse and bunched noise-like pulse generation in a passively mode-locked fiber ring laser[J]. Optics express, 2005, 13(7): 2289-2294,

[[24]] Lei D, Yang H, Dong H, et al.. Effect of birefringence on the bandwidth of noise-like pulse in an erbium-doped fiber laser[J]. Journal of modern optics, 2009, 56(4): 572-576,

[[25]] Dong T H, Lin J Q, Zhou Y, et al.. Noise-like square pulses in a linear-cavity NPR mode-locked Yb-doped fiber laser[J]. Optics and laser technology, 2021, 136(1): 106740,

[[26]] Luo A P, Luo Z C, Liu H, et al.. Noise-like pulse trapping in a figure-eight fiber laser[J]. Optics express, 2015, 23: 10421,

[[27]] Xu R Q, Tian J R, Song Y R. Noise-like pulses with a 14.5 fs spike generated in an Yb-doped fiber nonlinear amplifier[J]. Optics letters, 2018, 43(8): 1910,

[[28]] Lauterio-Cruz J P, Hernandez-Garcia J C, Pottiez O, et al.. High energy noise-like pulsing in a double-clad Er/Yb figure-of-eight fiber laser[J]. Optics express, 2016, 24(13): 13778-13787,

[[29]] Tang Y X, Liu Z W, Fu W, et al.. Self-similar pulse evolution in a fiber laser with a comb-like dispersion-decreasing fiber[J]. Optics letters, 2016, 41(10): 2290-2293,

[[30]] YOFC dispersion compensating fiber (DCF)[EB/OL]. (2023-01-25) [2023-05-26]. http://en.yofc.com/view/2370.html.

[[31]] Liu Z, Zhang S, Wise F W. Rogue waves in a normal-dispersion fiber laser[J]. Optics letters, 2015, 4: 1366-1369,

[[32]] Genier E, Bowen P, Sylvestre T, et al.. Amplitude noise and coherence degradation of femtosecond supercontinuum generation in all-normal-dispersion fibers[J]. Journal of the optical society of America B, 2019, 36(2): A161,

[[33]] Cheng Z C, Li H H, Wang P. Simulation of generation of dissipative soliton, dissipative soliton resonance and noise-like pulse in Yb-doped mode-locked fiber lasers[J]. Optics express, 2015, 23(5): 5972-5981,

[[34]] Dudley J M, Genty G, Stéphane C. Supercontinuum generation in photonic crystal fiber[J]. Review of modern physics, 2006, 78: 1135,

[[35]] Zaytsev A K, Lin C H, You Y J, et al.. A controllable noise-like operation regime in a Yb-doped dispersion-mapped fiber ring laser[J]. Laser physics letters, 2013, 10(4): 045104,

[[36]] Zhang Z C, Wang S, Pu Y J, et al.. Improving the formation probability and stability of noise-like pulse by weakening the spectrum filtering effect[J]. Optics express, 2012, 30(18): 31998-32009,