Fundamental and Harmonic Self Mode-locking in Mid IR Heavily Doped Fiber Lasers

Abstract: Harmonic self mode-locking effects are observed in heavily doped fiber lasers operating near 3 μm. The temporal profiles for the output of an Er-ZBLAN fiber laser operating at ~2.7 μm and an Ho, Pr-ZBLAN fiber laser operating at ~2.87 μm are reported. Stable second harmonic mode-locking is observed in the Er-ZBLAN fiber laser under 970nm pumping for an Er concentration of 50000 ppm, while unstable harmonic mode-locking of order of between 1-1/7 times the round cavity round trip time was observed for the higher concentration of 80000 ppm and for all pump powers. Unstable harmonic mode-locking is observed in the Ho, Pr-ZBLAN fiber laser when pumped at 1064nm, for fiber lengths up to 13m and for all pump powers. The experimental mode-locked pulse train periods are found to be consistent with theoretical analysis. The origin and properties of harmonic self mode-locking in heavily doped ZBLAN fiber lasers operated near 3 μm are discussed. Keywords: Er-ZBLAN fiber laser, Ho, Pr-ZBLAN fiber laser, Self mode-locking, Harmonic self mode-locking. PACS: Fiber lasers, 42.55.Wd, Mode locking, 42.60.Fc.

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Harmonic mode-locking and sub-round-trip time nonlinear dynamics of electro-optically controlled solid state laser

Journal of Physics Conference Series ◽

10.1088/1742-6596/990/1/012004 ◽

2018 ◽

Vol 990 ◽

pp. 012004

Author(s):

M V Gorbunkov ◽

Yu Ya Maslova ◽

V A Petukhov ◽

M A Semenov ◽

Yu V Shabalin ◽

...

Keyword(s):

Nonlinear Dynamics ◽

Solid State ◽

Mode Locking ◽

Solid State Laser ◽

Round Trip Time ◽

Round Trip ◽

Harmonic Mode ◽

State Laser ◽

Trip Time

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Round-trip time and dispersion optimization in a dual-wavelength actively mode-locked Er-doped fiber laser including nonchirped fiber Bragg gratings

IEEE Photonics Technology Letters ◽

10.1109/68.789703 ◽

1999 ◽

Vol 11 (10) ◽

pp. 1238-1240 ◽

Cited By ~ 19

Author(s):

O. Deparis ◽

R. Kiyan ◽

E. Salik ◽

D. Starodubov ◽

J. Feinberg ◽

...

Keyword(s):

Fiber Laser ◽

Fiber Bragg Gratings ◽

Bragg Gratings ◽

Dual Wavelength ◽

Round Trip Time ◽

Round Trip ◽

Trip Time ◽

Er Doped

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DISSIPATIVE SOLITON PULSATIONS WITH PERIODS BEYOND THE LASER CAVITY ROUND TRIP TIME

Journal of Nonlinear Optical Physics & Materials ◽

10.1142/s0218863505002645 ◽

2005 ◽

Vol 14 (02) ◽

pp. 177-194 ◽

Cited By ~ 8

Author(s):

N. AKHMEDIEV ◽

J. M. SOTO-CRESPO ◽

M. GRAPINET ◽

Ph. GRELU

Keyword(s):

Phase Space ◽

Nonlinear System ◽

Fiber Laser ◽

Laser Cavity ◽

Continuous Model ◽

Round Trip Time ◽

Round Trip ◽

Infinite Dimensional ◽

Trip Time ◽

Dimensional Phase Space

We review recent results on periodic pulsations of the soliton parameters in a passively mode-locked fiber laser. Solitons change their shape, amplitude, width and velocity periodically in time. These pulsations are limit cycles of a dissipative nonlinear system in an infinite-dimensional phase space. Pulsation periods can vary from a few to hundreds of round trips. We present a continuous model of a laser as well as a model with parameter management. The results of the modeling are supported with experimental results obtained using a fiber laser.

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