Pulse bursts generation at 10 GHz intra-burst repetition rate in quasi-lossless mode-locked erbium-doped fibre laser

Maria Chernysheva, Srikanth Sugavanam, Dmitri Churkin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Summary form only given. `Burst' operating mode of mode-locked fiber lasers, presented for the first time in [1], has recently gained high potential in hard and soft tissue ablation [2, 3]. Pulse bursts consist of temporally closely spaced pulses, which during the ablation prevent rapid cycles of material heating and cooling. Bursts are typically generated at low repetition rate, which allows lower average power at the same level of the energy, therefore, avoiding long-term heat accumulation in the material. Hence, burst mode operation is superior in terms of energy required, ablation speed and avoidance of thermal effects, compared to uniform pulse trains. Currently to achieve the pulse burst generation, several acousto-optic modulators are introduced in the laser system to crop window of seed laser output pulse train or direct pulse burst generation from highly-pumped lasers [4, 5]. Here we propose a new concept of generating such pulse bursts using an ultralong mode-locked fibre laser, based on quasi-lossless concept, where the short laser cavity is enhanced with a long fiber span, forming a distributed Raman amplifier. This relaxes the restriction on non-compensated losses inherent in traditional ultralong soliton lasers and enables effective wave breaking and multiple-pulsing phenomena.
Original languageEnglish
Title of host publicationThe European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
PublisherOptical Society of America
VolumePart F82-CLEO_Europe 2017
ISBN (Electronic)9781557528209
Publication statusPublished - 29 Jun 2017
EventThe European Conference on Lasers and Electro-Optics, CLEO_Europe 2017 - Munich, Germany
Duration: 25 Jun 201729 Jun 2017

Conference

ConferenceThe European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
CountryGermany
CityMunich
Period25/06/1729/06/17

Fingerprint

Erbium
Fiber lasers
Laser modes
Ablation
Mode-locked fiber lasers
Laser pulses
Lasers
Laser resonators
Solitons
Thermal effects
Modulators
Crops
Seed
Optics
Tissue
Cooling
Heating
Fibers

Cite this

Chernysheva, M., Sugavanam, S., & Churkin, D. (2017). Pulse bursts generation at 10 GHz intra-burst repetition rate in quasi-lossless mode-locked erbium-doped fibre laser. In The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017 (Vol. Part F82-CLEO_Europe 2017). Optical Society of America.
Chernysheva, Maria ; Sugavanam, Srikanth ; Churkin, Dmitri. / Pulse bursts generation at 10 GHz intra-burst repetition rate in quasi-lossless mode-locked erbium-doped fibre laser. The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017. Vol. Part F82-CLEO_Europe 2017 Optical Society of America, 2017.
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abstract = "Summary form only given. `Burst' operating mode of mode-locked fiber lasers, presented for the first time in [1], has recently gained high potential in hard and soft tissue ablation [2, 3]. Pulse bursts consist of temporally closely spaced pulses, which during the ablation prevent rapid cycles of material heating and cooling. Bursts are typically generated at low repetition rate, which allows lower average power at the same level of the energy, therefore, avoiding long-term heat accumulation in the material. Hence, burst mode operation is superior in terms of energy required, ablation speed and avoidance of thermal effects, compared to uniform pulse trains. Currently to achieve the pulse burst generation, several acousto-optic modulators are introduced in the laser system to crop window of seed laser output pulse train or direct pulse burst generation from highly-pumped lasers [4, 5]. Here we propose a new concept of generating such pulse bursts using an ultralong mode-locked fibre laser, based on quasi-lossless concept, where the short laser cavity is enhanced with a long fiber span, forming a distributed Raman amplifier. This relaxes the restriction on non-compensated losses inherent in traditional ultralong soliton lasers and enables effective wave breaking and multiple-pulsing phenomena.",
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Chernysheva, M, Sugavanam, S & Churkin, D 2017, Pulse bursts generation at 10 GHz intra-burst repetition rate in quasi-lossless mode-locked erbium-doped fibre laser. in The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017. vol. Part F82-CLEO_Europe 2017, Optical Society of America, The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017, Munich, Germany, 25/06/17.

Pulse bursts generation at 10 GHz intra-burst repetition rate in quasi-lossless mode-locked erbium-doped fibre laser. / Chernysheva, Maria; Sugavanam, Srikanth; Churkin, Dmitri.

The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017. Vol. Part F82-CLEO_Europe 2017 Optical Society of America, 2017.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Pulse bursts generation at 10 GHz intra-burst repetition rate in quasi-lossless mode-locked erbium-doped fibre laser

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PY - 2017/6/29

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N2 - Summary form only given. `Burst' operating mode of mode-locked fiber lasers, presented for the first time in [1], has recently gained high potential in hard and soft tissue ablation [2, 3]. Pulse bursts consist of temporally closely spaced pulses, which during the ablation prevent rapid cycles of material heating and cooling. Bursts are typically generated at low repetition rate, which allows lower average power at the same level of the energy, therefore, avoiding long-term heat accumulation in the material. Hence, burst mode operation is superior in terms of energy required, ablation speed and avoidance of thermal effects, compared to uniform pulse trains. Currently to achieve the pulse burst generation, several acousto-optic modulators are introduced in the laser system to crop window of seed laser output pulse train or direct pulse burst generation from highly-pumped lasers [4, 5]. Here we propose a new concept of generating such pulse bursts using an ultralong mode-locked fibre laser, based on quasi-lossless concept, where the short laser cavity is enhanced with a long fiber span, forming a distributed Raman amplifier. This relaxes the restriction on non-compensated losses inherent in traditional ultralong soliton lasers and enables effective wave breaking and multiple-pulsing phenomena.

AB - Summary form only given. `Burst' operating mode of mode-locked fiber lasers, presented for the first time in [1], has recently gained high potential in hard and soft tissue ablation [2, 3]. Pulse bursts consist of temporally closely spaced pulses, which during the ablation prevent rapid cycles of material heating and cooling. Bursts are typically generated at low repetition rate, which allows lower average power at the same level of the energy, therefore, avoiding long-term heat accumulation in the material. Hence, burst mode operation is superior in terms of energy required, ablation speed and avoidance of thermal effects, compared to uniform pulse trains. Currently to achieve the pulse burst generation, several acousto-optic modulators are introduced in the laser system to crop window of seed laser output pulse train or direct pulse burst generation from highly-pumped lasers [4, 5]. Here we propose a new concept of generating such pulse bursts using an ultralong mode-locked fibre laser, based on quasi-lossless concept, where the short laser cavity is enhanced with a long fiber span, forming a distributed Raman amplifier. This relaxes the restriction on non-compensated losses inherent in traditional ultralong soliton lasers and enables effective wave breaking and multiple-pulsing phenomena.

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Chernysheva M, Sugavanam S, Churkin D. Pulse bursts generation at 10 GHz intra-burst repetition rate in quasi-lossless mode-locked erbium-doped fibre laser. In The European Conference on Lasers and Electro-Optics, CLEO_Europe 2017. Vol. Part F82-CLEO_Europe 2017. Optical Society of America. 2017