The generation of 1.2 µJ pulses from a Mamyshev oscillator based on a high concentration, large-mode-area Yb-doped fiber
The generation of 1.2 µJ pulses from a Mamyshev oscillator based on a high concentration, large-mode-area Yb-doped fiber
We demonstrate a high-energy and high-average power Mamyshev oscillator based on a high performance large-mode-area step-index germanosilicate-cladding Yb-doped fiber. The oscillation of higher-order modes is effectively suppressed by employing appropriate intracavity spatial mode filtering, allowing significant scaling of single pulse energy. The laser directly generates a nearly diffraction-limited beam with an average power of 17 W operating at the fundamental repetition rate of 14.01 MHz, corresponding to a pulse energy of 1.2 µJ. The pulses could be externally dechirped to ∼58 fs, leading to a peak power of ∼13 MW. To the best of our knowledge, this is the highest pulse energy with sub-100 fs duration ever obtained directly from a mode-locked fiber oscillator.
Mode locked fiber oscillator, ultrafast pulses
7175-7179
Lin, Di
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Xu, Duanyang
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He, Jing
712323ca-82ac-460a-8a66-cd5a54858b9e
Feng, Yutong
8257a816-5e4a-47bc-8aa2-e364c4d6e21e
Ren, Zhengqi
132134d5-1da7-494a-802a-08d7dd9f4451
Sidharthan, Raghuraman
3a64468c-0706-4cd6-8fab-2fbe65392c4b
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Yoo, Seongwoo
dcabaaed-490b-4024-8271-ea8048653faf
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
1 November 2022
Lin, Di
d858c2c7-6eab-49d8-87e7-6b71d9bad013
Xu, Duanyang
2eeb11e3-d31e-4552-a925-49a3ffd7da20
He, Jing
712323ca-82ac-460a-8a66-cd5a54858b9e
Feng, Yutong
8257a816-5e4a-47bc-8aa2-e364c4d6e21e
Ren, Zhengqi
132134d5-1da7-494a-802a-08d7dd9f4451
Sidharthan, Raghuraman
3a64468c-0706-4cd6-8fab-2fbe65392c4b
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Yoo, Seongwoo
dcabaaed-490b-4024-8271-ea8048653faf
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Lin, Di, Xu, Duanyang, He, Jing, Feng, Yutong, Ren, Zhengqi, Sidharthan, Raghuraman, Jung, Yongmin, Yoo, Seongwoo and Richardson, David J.
(2022)
The generation of 1.2 µJ pulses from a Mamyshev oscillator based on a high concentration, large-mode-area Yb-doped fiber.
IEEE Journal of Lightwave Technology, 40 (21), .
(doi:10.1109/JLT.2022.3198737).
Abstract
We demonstrate a high-energy and high-average power Mamyshev oscillator based on a high performance large-mode-area step-index germanosilicate-cladding Yb-doped fiber. The oscillation of higher-order modes is effectively suppressed by employing appropriate intracavity spatial mode filtering, allowing significant scaling of single pulse energy. The laser directly generates a nearly diffraction-limited beam with an average power of 17 W operating at the fundamental repetition rate of 14.01 MHz, corresponding to a pulse energy of 1.2 µJ. The pulses could be externally dechirped to ∼58 fs, leading to a peak power of ∼13 MW. To the best of our knowledge, this is the highest pulse energy with sub-100 fs duration ever obtained directly from a mode-locked fiber oscillator.
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Accepted/In Press date: 30 July 2022
e-pub ahead of print date: 16 August 2022
Published date: 1 November 2022
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Publisher Copyright:
© 1983-2012 IEEE.
Keywords:
Mode locked fiber oscillator, ultrafast pulses
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Local EPrints ID: 469506
URI: http://eprints.soton.ac.uk/id/eprint/469506
ISSN: 0733-8724
PURE UUID: 4ac632ff-49f1-4fda-8dc2-d4302be43ad3
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Date deposited: 16 Sep 2022 16:40
Last modified: 17 Mar 2024 03:15
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Contributors
Author:
Di Lin
Author:
Duanyang Xu
Author:
Jing He
Author:
Yutong Feng
Author:
Zhengqi Ren
Author:
Raghuraman Sidharthan
Author:
Seongwoo Yoo
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