Properties of artificial saturable absorbers based on NALM with two pumped active fibres

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Properties of artificial saturable absorbers based on NALM with two pumped active fibres. / Kokhanovskiy, Alexey ; Kobtsev, Sergey; Ivanenko, Aleksey et al.

In: Laser Physics Letters, Vol. 15, No. 12, 125101, 01.12.2018.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{573e1c02703b4569a6f25d7e82560b25,

title = "Properties of artificial saturable absorbers based on NALM with two pumped active fibres",

abstract = "This work reports for the first time the study of an artificial saturable absorber based on a non-linear amplifying loop mirror (NALM2) with two independently pumped active media instead of one (NALM). It is demonstrated that an adjustment of the ratio of the pump source power levels leads to a variation of the saturable power of an NALM2-based artificial saturable absorber within relatively broad limits. The transmission dependence of NALM2 upon peak power and variation of its shape as a function of the ratio of pump source power levels are established. The dynamics of the duration and shape of picosecond pulses at radiation peak powers close to the saturation power of NALM2 is also studied. It is shown that proper adjustment of the ratio of pump source power levels allows the maximal NALM2 saturation power to be shifted into a higher peak power of radiation pulses. The identified properties of NALM2 make it a universal saturable absorber for mode locking in fibre lasers with a variable peak pulse of ultra-short output pulses.",

keywords = "mode-locked lasers, nonlinear optical devices, nonlinear optics, optical properties, pulse propagation and temporal solitons, DISSIPATIVE-SOLITON-RESONANCE, LASER, LOOP MIRROR, DEGRADATION, POWER, PULSES",

author = "Alexey Kokhanovskiy and Sergey Kobtsev and Aleksey Ivanenko and Sergey Smirnov",

note = "Publisher Copyright: {\textcopyright} 2018 Astro Ltd.",

year = "2018",

month = dec,

day = "1",

doi = "10.1088/1612-202X/aae21c",

language = "English",

volume = "15",

journal = "Laser Physics Letters",

issn = "1612-2011",

publisher = "IOP Publishing Ltd.",

number = "12",

}

RIS

TY - JOUR

T1 - Properties of artificial saturable absorbers based on NALM with two pumped active fibres

AU - Kokhanovskiy, Alexey

AU - Kobtsev, Sergey

AU - Ivanenko, Aleksey

AU - Smirnov, Sergey

PY - 2018/12/1

Y1 - 2018/12/1

N2 - This work reports for the first time the study of an artificial saturable absorber based on a non-linear amplifying loop mirror (NALM2) with two independently pumped active media instead of one (NALM). It is demonstrated that an adjustment of the ratio of the pump source power levels leads to a variation of the saturable power of an NALM2-based artificial saturable absorber within relatively broad limits. The transmission dependence of NALM2 upon peak power and variation of its shape as a function of the ratio of pump source power levels are established. The dynamics of the duration and shape of picosecond pulses at radiation peak powers close to the saturation power of NALM2 is also studied. It is shown that proper adjustment of the ratio of pump source power levels allows the maximal NALM2 saturation power to be shifted into a higher peak power of radiation pulses. The identified properties of NALM2 make it a universal saturable absorber for mode locking in fibre lasers with a variable peak pulse of ultra-short output pulses.

AB - This work reports for the first time the study of an artificial saturable absorber based on a non-linear amplifying loop mirror (NALM2) with two independently pumped active media instead of one (NALM). It is demonstrated that an adjustment of the ratio of the pump source power levels leads to a variation of the saturable power of an NALM2-based artificial saturable absorber within relatively broad limits. The transmission dependence of NALM2 upon peak power and variation of its shape as a function of the ratio of pump source power levels are established. The dynamics of the duration and shape of picosecond pulses at radiation peak powers close to the saturation power of NALM2 is also studied. It is shown that proper adjustment of the ratio of pump source power levels allows the maximal NALM2 saturation power to be shifted into a higher peak power of radiation pulses. The identified properties of NALM2 make it a universal saturable absorber for mode locking in fibre lasers with a variable peak pulse of ultra-short output pulses.

KW - mode-locked lasers

KW - nonlinear optical devices

KW - nonlinear optics

KW - optical properties

KW - pulse propagation and temporal solitons

KW - DISSIPATIVE-SOLITON-RESONANCE

KW - LASER

KW - LOOP MIRROR

KW - DEGRADATION

KW - POWER

KW - PULSES

UR - http://www.scopus.com/inward/record.url?scp=85058442779&partnerID=8YFLogxK

U2 - 10.1088/1612-202X/aae21c

DO - 10.1088/1612-202X/aae21c

M3 - Article

AN - SCOPUS:85058442779

VL - 15

JO - Laser Physics Letters

JF - Laser Physics Letters

SN - 1612-2011

IS - 12

M1 - 125101

ER -

ID: 17877156