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1.3 μm passively Q-Switched bismuth doped fiber laser using Nb2C saturable absorber

1.3 μm passively Q-Switched bismuth doped fiber laser using Nb2C saturable absorber
1.3 μm passively Q-Switched bismuth doped fiber laser using Nb2C saturable absorber
A tunable passively Q-switched fiber laser operating at 1.3 μm was demonstrated using bismuth-doped fiber (BDF) as the gain medium and using niobium carbide (Nb2C) as the saturable absorber (SA). The Nb2C was prepared using the solution casting method, and then fabricated into a film form for ease of integration into the laser cavity. Stable Q-switched pulses were observed as the pump power was increased from 820 to 1037 mW, generating pulses with increasing repetition rates from 10.1 kHz to 13.8 kHz and decreasing pulse widths from 17.54 to 7.58 μs. The all-fiber laser had a center wavelength at 1314 nm with a broad 3-dB bandwidth of 8.35 nm. The maximum output power and pulse energy of the Q-switched laser were 0.74 mW and 53.7 nJ, respectively. The laser was stable when tested for its long-term stability, where the peak frequency remained consistent at 13.8 kHz and the SNRs were maintained to be more than 60 dB throughout the entire test period. To the best of our knowledge, this is the first demonstration for a passively Q-switched fiber laser operating at 1.3 μm wavelength region using BDF as the gain medium.
Bismuth niobium carbide, Fiber laser, Q-switching, Saturable absorber
0925-3467
Ahmed, H,
b8c64b96-b320-41c3-907b-24883e82cd76
Azri, M.F.M.
da4eef5e-9094-4292-8db2-c48fb9b47ae7
Aidit, S.N.
d7f1f825-1a87-4053-9bc5-fe291c3044a1
Yusoff, N.
6d7c7248-c060-4d75-ac74-de595046bedf
Zamzuri, A.K.
4a5d692e-298a-4bb8-980c-db891007351b
Samion, M.Z.
65c4eb9b-7564-43cd-bff9-ee0a5952fd44
Wang, S.
c08cda8f-6794-4575-8314-7cbdf6dcd9ae
Wang, Y.
009a015a-532d-4866-a7b7-853da75f1015
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Ahmed, H,
b8c64b96-b320-41c3-907b-24883e82cd76
Azri, M.F.M.
da4eef5e-9094-4292-8db2-c48fb9b47ae7
Aidit, S.N.
d7f1f825-1a87-4053-9bc5-fe291c3044a1
Yusoff, N.
6d7c7248-c060-4d75-ac74-de595046bedf
Zamzuri, A.K.
4a5d692e-298a-4bb8-980c-db891007351b
Samion, M.Z.
65c4eb9b-7564-43cd-bff9-ee0a5952fd44
Wang, S.
c08cda8f-6794-4575-8314-7cbdf6dcd9ae
Wang, Y.
009a015a-532d-4866-a7b7-853da75f1015
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2

Ahmed, H,, Azri, M.F.M., Aidit, S.N., Yusoff, N., Zamzuri, A.K., Samion, M.Z., Wang, S., Wang, Y. and Sahu, Jayanta (2021) 1.3 μm passively Q-Switched bismuth doped fiber laser using Nb2C saturable absorber. Optical Materials, 116, [111087]. (doi:10.1016/j.optmat.2021.111087).

Record type: Article

Abstract

A tunable passively Q-switched fiber laser operating at 1.3 μm was demonstrated using bismuth-doped fiber (BDF) as the gain medium and using niobium carbide (Nb2C) as the saturable absorber (SA). The Nb2C was prepared using the solution casting method, and then fabricated into a film form for ease of integration into the laser cavity. Stable Q-switched pulses were observed as the pump power was increased from 820 to 1037 mW, generating pulses with increasing repetition rates from 10.1 kHz to 13.8 kHz and decreasing pulse widths from 17.54 to 7.58 μs. The all-fiber laser had a center wavelength at 1314 nm with a broad 3-dB bandwidth of 8.35 nm. The maximum output power and pulse energy of the Q-switched laser were 0.74 mW and 53.7 nJ, respectively. The laser was stable when tested for its long-term stability, where the peak frequency remained consistent at 13.8 kHz and the SNRs were maintained to be more than 60 dB throughout the entire test period. To the best of our knowledge, this is the first demonstration for a passively Q-switched fiber laser operating at 1.3 μm wavelength region using BDF as the gain medium.

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Accepted/In Press date: 8 April 2021
e-pub ahead of print date: 21 April 2021
Keywords: Bismuth niobium carbide, Fiber laser, Q-switching, Saturable absorber

Identifiers

Local EPrints ID: 449649
URI: http://eprints.soton.ac.uk/id/eprint/449649
ISSN: 0925-3467
PURE UUID: dc84038b-8622-4221-8191-3bd5c9d80b14
ORCID for Jayanta Sahu: ORCID iD orcid.org/0000-0003-3560-6152

Catalogue record

Date deposited: 10 Jun 2021 16:30
Last modified: 28 Apr 2022 01:48

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Contributors

Author: H, Ahmed
Author: M.F.M. Azri
Author: S.N. Aidit
Author: N. Yusoff
Author: A.K. Zamzuri
Author: M.Z. Samion
Author: S. Wang
Author: Y. Wang
Author: Jayanta Sahu ORCID iD

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