scholarly journals Automated mode locking in nonlinear polarization rotation fiber lasers by detection of a discontinuous jump in the polarization state

2015 ◽  
Vol 23 (5) ◽  
pp. 6738 ◽  
Author(s):  
Michel Olivier ◽  
Marc-Daniel Gagnon ◽  
Michel Piché
Keyword(s):  
Fiber Lasers ◽  
Polarization State ◽  
Mode Locking ◽  
Polarization Rotation ◽  
Nonlinear Polarization ◽  
Nonlinear Polarization Rotation

scholarly journals Numerical Study on the Soliton Mode-Locking of the Er3+-Doped Fluoride Fiber Laser at ~3 μm with Nonlinear Polarization Rotation

Photonics ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 25 ◽  
Author(s):  
Feijuan Zhang ◽  
Wenyan Yan ◽  
Shengnan Liang ◽  
Chao Tan ◽  
Pinghua Tang
Keyword(s):  
Fiber Laser ◽  
Fiber Lasers ◽  
Numerical Study ◽  
High Energy ◽  
Mode Locking ◽  
Polarization Rotation ◽  
Nonlinear Polarization ◽  
Fiber Ring ◽  
Fluoride Fiber ◽  
Nonlinear Polarization Rotation

Recent interest in the application of mid-infrared (mid-IR) lasers has made the generation of ~3 µm ultrafast pulses a hot topic. Recently, the generation of femtosecond-scale pulses in Er3+-doped fluoride fiber lasers has been realized by nonlinear polarization rotation (NPR). However, a numerical study on these fiber lasers has not been reported yet. In this work, the output properties of the NPR passively mode-locked Er3+-doped fluoride fiber ring laser in ~3 µm have been numerically investigated based on the coupled Ginzburg–Landu equation. The simulation results indicate that stable uniform solitons (0.75 nJ) with the pulse duration of femtosecond-scale can be generated from this fiber laser. This numerical investigation can provide some reference for developing the high energy femtosecond soliton fiber lasers in the mid-IR.

scholarly journals Q-switched mode locking noise-like pulse generation from a thulium-doped all-fiber laser based on nonlinear polarization rotation

2021 ◽  
pp. 100115
Author(s):  
R. López Estopier ◽  
A. Camarillo Avilés ◽  
M. Bello Jiménez ◽  
O. Pottiez ◽  
M. Durán Sánchez ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Mode Locking ◽  
Pulse Generation ◽  
Polarization Rotation ◽  
Nonlinear Polarization ◽  
Nonlinear Polarization Rotation

scholarly journals The Investigation on Ultrafast Pulse Formation in a Tm–Ho-Codoped Mode-Locking Fiber Oscillator

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3460
Author(s):  
Jingcheng Shang ◽  
Yizhou Liu ◽  
Shengzhi Zhao ◽  
Yuefeng Zhao ◽  
Yuzhi Song ◽  
...  
Keyword(s):  
Maximum Output Power ◽  
Single Pulse ◽  
Mode Locking ◽  
Maximum Output ◽  
Polarization Rotation ◽  
Nonlinear Polarization ◽  
Soliton Pulse ◽  
Proper Design ◽  
Nonlinear Polarization Rotation ◽  
Pulse Formation

We experimentally investigate the formation of various pulses from a thulium–holmium (Tm–Ho)-codoped nonlinear polarization rotation (NPR) mode-locking fiber oscillator. The ultrafast fiber oscillator can simultaneously operate in the noise-like and soliton mode-locking regimes with two different emission wavelengths located around 1947 and 2010 nm, which are believed to be induced from the laser transition of Tm3+ and Ho3+ ions respectively. When the noise-like pulse (NLP) and soliton pulse (SP) co-exist inside the laser oscillator, a maximum output power of 295 mW is achieved with a pulse repetition rate of 19.85-MHz, corresponding to a total single pulse energy of 14.86 nJ. By adjusting the wave plates, the fiber oscillator could also deliver the dual-NLPs or dual-SPs at dual wavelengths, or single NLP and single SP at one wavelength. The highest 61-order harmonic soliton pulse and 33.4-nJ-NLP are also realized respectively with proper design of the fiber cavity.

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