THEORETICAL ANALYSIS OF FAST AND SLOW SATURABLE ABSORBER MODE LOCKING ERBIUM DOPED FIBER LASERS

The single-, dual- and triple-wavelength passively mode-locked erbium-doped fiber lasers are demonstrated with MoS2 and polarization-dependent isolator (PD-ISO). The saturable absorber is fabricated by wrapping an MoS2 around a microfiber. The intracavity PD-ISO acts as a wavelength-tunable filter with a polarization controller (PC) by adjusting the linear birefringence. Single-wavelength mode-locked fiber laser can self-start with suitable pump power. With appropriate PC state, dual- and triple-wavelength operations can be observed when gains at different wavelengths reach a balance. It is noteworthy that dual-wavelength pulses exhibiting peak and dip sidebands, respectively, are demonstrated in the experiment. The proposed simple and multi-wavelength all-fiber conventional soliton lasers could possess potential applications in numerous fields, such as sensors, THz generations and optical communications.

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Environmentally stable Er-fiber mode-locked pulse generation and amplification by spectrally filtered and phase-biased nonlinear amplifying long-loop mirror

High Power Laser Science and Engineering ◽

10.1017/hpl.2019.29 ◽

2019 ◽

Vol 7 ◽

Cited By ~ 2

Author(s):

Zhengru Guo ◽

Qiang Hao ◽

Junsong Peng ◽

Heping Zeng

Keyword(s):

Repetition Rate ◽

Fiber Lasers ◽

Fiber Amplifier ◽

Mode Locking ◽

Pulse Generation ◽

Erbium Doped ◽

Polarization Maintaining Fiber ◽

Fiber Mode ◽

Polarization Maintaining ◽

Loop Mirror

We report on environmentally stable long-cavity ultrashort erbium-doped fiber lasers, which self-start mode-locking at quite low thresholds by using spectrally filtered and phase-biased nonlinear amplifying long-loop mirrors. By employing 100-m polarization-maintaining fiber (PMF) in the nonlinear loop, the fundamental repetition rate reaches 1.84 MHz and no practical limitation is found to further decrease the repetition rate. The filter used in the long loop not only suppresses Kelly sidebands of the solitons, but also eliminates the amplified spontaneous emission which exists widely in low-repetition-rate ultrafast fiber lasers. The bandwidth of the filter is optimized by using a numerical model. The laser emits approximately 3-ps pulses with an energy of 17.4 pJ, which is further boosted to $1.5~\unicode[STIX]{x03BC}\text{J}$ by using a fiber amplifier.

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Q-switched erbium-doped fiber lasers based on copper nanoparticles saturable absorber

Journal of Physics Conference Series ◽

10.1088/1742-6596/1371/1/012028 ◽

2019 ◽

Vol 1371 ◽

pp. 012028

Author(s):

E I Ismail ◽

F Ahmad ◽

S Ambran ◽

A A Latiff ◽

S W Harun

Keyword(s):

Saturable Absorber ◽

Copper Nanoparticles ◽

Fiber Lasers ◽

Erbium Doped

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Nonlinear fiber external cavity mode locking of erbium-doped fiber lasers

Journal of the Optical Society of America B ◽

10.1364/josab.10.001166 ◽

1993 ◽

Vol 10 (7) ◽

pp. 1166 ◽

Cited By ~ 18

Author(s):

T. Geisler ◽

K. A. Shore ◽

M. P. Soerensen ◽

J. Mørk ◽

J. Mark ◽

...

Keyword(s):

Fiber Lasers ◽

Cavity Mode ◽

External Cavity ◽

Mode Locking ◽

Erbium Doped ◽

Nonlinear Fiber

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All-polarization-maintaining Femtosecond Erbium-doped Fiber Lasers Using Graphene Oxide Saturable Absorber

Advanced Solid-State Lasers Congress ◽

10.1364/assl.2013.atu3a.17 ◽

2013 ◽

Author(s):

Jia Xu ◽

Sida Wu ◽

Jiang Liu ◽

Quan-Hong Yang ◽

Pu Wang

Keyword(s):

Graphene Oxide ◽

Saturable Absorber ◽

Fiber Lasers ◽

Erbium Doped ◽

Polarization Maintaining

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Towards an optimum saturable absorber for the multi-gigahertz harmonic mode locking of fiber lasers

Photonics Research ◽

10.1364/prj.7.001094 ◽

2019 ◽

Vol 7 (9) ◽

pp. 1094 ◽

Cited By ~ 2

Author(s):

Jakub Bogusławski ◽

Grzegorz Soboń ◽

Rafał Zybała ◽

Jarosław Sotor

Keyword(s):

Saturable Absorber ◽

Fiber Lasers ◽

Mode Locking ◽

Harmonic Mode

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Fundamental and harmonic mode-locking in erbium-doped fiber laser based on graphene saturable absorber

Optics Communications ◽

10.1016/j.optcom.2012.03.002 ◽

2012 ◽

Vol 285 (13-14) ◽

pp. 3174-3178 ◽

Cited By ~ 38

Author(s):

Jaroslaw Sotor ◽

Grzegorz Sobon ◽

Karol Krzempek ◽

Krzysztof M. Abramski

Keyword(s):

Fiber Laser ◽

Saturable Absorber ◽

Mode Locking ◽

Harmonic Mode ◽

Erbium Doped ◽

Graphene Saturable Absorber

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HIGHLY FE-DOPED InGaAs/InP SATURABLE ABSORBER MODE-LOCKING OF AN ERBIUM FIBER LASER

Journal of Nonlinear Optical Physics & Materials ◽

10.1142/s021886350500289x ◽

2005 ◽

Vol 14 (03) ◽

pp. 427-437 ◽

Cited By ~ 1

Author(s):

J.-B. LECOURT ◽

B. ORTAÇ ◽

M. GUÉZO ◽

C. LABBÉ ◽

H. FOLLIOT ◽

...

Keyword(s):

Quantum Wells ◽

Saturable Absorber ◽

Mode Locking ◽

Multiple Quantum ◽

Average Output ◽

Picosecond Pulses ◽

Inp Substrate ◽

Semiconductor Saturable Absorber ◽

Erbium Doped ◽

Maximum Average Output Power

Erbium-doped unidirectional fiber ring laser has been passively mode-locked with a novel ultra-fast semiconductor saturable absorber used in transmission. The structure is based on InGaAs/InP multiple quantum wells grown on an InP substrate. Different structures with recovery time down to picosecond have been tested. Relaxation time reduction have been obtained by iron doping. With such structures, detrimental regimes such as Q-switch and Q-switch/ModeLock regimes have been avoided. Solitonic and slightly stretched-pulse dispersion regimes have been tested. The laser delivers for both, completely self-starting picosecond pulses of 8 mW maximum average output power at a repetition rate around 25 MHz.

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