Widely tunable actively mode-locked Bi-doped fiber laser operating in the O-band
Widely tunable actively mode-locked Bi-doped fiber laser operating in the O-band
Here, we propose an all-fiber actively mode-locked Bismuth (Bi)-doped fiber laser based on the use of an acousto-optic modulator. The mode-locked Bi-doped fiber laser produces 13ns pulses with a repetition rate of 1.683MHz at 1340nm. Higher harmonic mode-locking is achieved simply by changing the operating frequency of the acousto-optic modulator. The output power of the laser is 7mW and this is further amplified to 101mW using an external Bi-doped fiber amplifier. A peak power of 4.6W with a pulse energy of 60nJ is achieved after the master oscillator power amplifier. The stability of the laser is studied using an RF spectrum analyzer and an SNR of more than 60dB at the fundamental frequency of 1.683MHz was recorded. Furthermore, wavelength tuning of the Bi-doped fiber laser is explored and demonstrated from 1300 to 1370nm.
Bismuth, fiber lasers, laser mode locking, optical fibers
711-714
Thipparapu, Naresh Kumar
a36a2b4c-b75c-4976-a753-b5fab9e54150
Alam, Shaiful
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Wang, Yu
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Pidishety, Shankar
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Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
1 July 2022
Thipparapu, Naresh Kumar
a36a2b4c-b75c-4976-a753-b5fab9e54150
Alam, Shaiful
b6b47879-2fe3-476a-812d-f97389facc2c
Wang, Yu
782c5e8b-7ff6-4f4f-9046-5b6410d21249
Pidishety, Shankar
b693fa46-8454-4577-8166-6a8ae2d3f19c
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Thipparapu, Naresh Kumar, Alam, Shaiful, Wang, Yu, Pidishety, Shankar, Richardson, David J. and Sahu, Jayanta
(2022)
Widely tunable actively mode-locked Bi-doped fiber laser operating in the O-band.
IEEE Photonics Technology Letters, 34 (13), .
(doi:10.1109/LPT.2022.3147321).
Abstract
Here, we propose an all-fiber actively mode-locked Bismuth (Bi)-doped fiber laser based on the use of an acousto-optic modulator. The mode-locked Bi-doped fiber laser produces 13ns pulses with a repetition rate of 1.683MHz at 1340nm. Higher harmonic mode-locking is achieved simply by changing the operating frequency of the acousto-optic modulator. The output power of the laser is 7mW and this is further amplified to 101mW using an external Bi-doped fiber amplifier. A peak power of 4.6W with a pulse energy of 60nJ is achieved after the master oscillator power amplifier. The stability of the laser is studied using an RF spectrum analyzer and an SNR of more than 60dB at the fundamental frequency of 1.683MHz was recorded. Furthermore, wavelength tuning of the Bi-doped fiber laser is explored and demonstrated from 1300 to 1370nm.
Text
Widely tunable active mode-locked BDFL operating in the O-band - revised manuscript submitted
- Accepted Manuscript
More information
Accepted/In Press date: 20 January 2022
Published date: 1 July 2022
Additional Information:
Funding Information:
This work was supported by the U.K. Engineering and Physical Sciences Research Council (EPSRC) under the "Airguide Photonics" Program Grant EP/P030181/1.
Publisher Copyright:
© 1989-2012 IEEE.
Keywords:
Bismuth, fiber lasers, laser mode locking, optical fibers
Identifiers
Local EPrints ID: 456148
URI: http://eprints.soton.ac.uk/id/eprint/456148
ISSN: 1041-1135
PURE UUID: 5b06642d-2863-49f5-8861-48bbd640583e
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Date deposited: 26 Apr 2022 15:06
Last modified: 17 Mar 2024 02:53
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Contributors
Author:
Naresh Kumar Thipparapu
Author:
Shaiful Alam
Author:
Shankar Pidishety
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