All-fiber E+S band continuously tunable bismuth-doped germanosilicate fiber laser
All-fiber E+S band continuously tunable bismuth-doped germanosilicate fiber laser
In this letter, we present an all-fiber bismuth (Bi)-doped germanosilicate fiber laser that is continuously tunable within the range of 1425 to 1475 nm, enabled by a tunable optical filter. A maximum output power of 86.4 mW was achieved at 1450 nm with a slope efficiency of 13.7%. It is, to the best of our knowledge, the first demonstration of an all-fiber tunable continuous-wave (CW) bismuth-doped fiber laser (BDFL) operating in the E+S band. Moreover, a bismuth-doped fiber amplifier (BDFA) was constructed to further scale the laser output power to 159.2 mW with a 21% slope efficiency. Across the 1425-1475 nm range, we achieved >117 mW output power with >50 dB in-band optical signal-to-noise ratio (OSNR).
141-144
Zhai, Ziwei
95caa116-8203-4b74-aa67-b5d00cf14e6d
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
19 December 2024
Zhai, Ziwei
95caa116-8203-4b74-aa67-b5d00cf14e6d
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Zhai, Ziwei and Sahu, Jayanta
(2024)
All-fiber E+S band continuously tunable bismuth-doped germanosilicate fiber laser.
Optics Letters, 50 (1), .
(doi:10.1364/OL.547001).
Abstract
In this letter, we present an all-fiber bismuth (Bi)-doped germanosilicate fiber laser that is continuously tunable within the range of 1425 to 1475 nm, enabled by a tunable optical filter. A maximum output power of 86.4 mW was achieved at 1450 nm with a slope efficiency of 13.7%. It is, to the best of our knowledge, the first demonstration of an all-fiber tunable continuous-wave (CW) bismuth-doped fiber laser (BDFL) operating in the E+S band. Moreover, a bismuth-doped fiber amplifier (BDFA) was constructed to further scale the laser output power to 159.2 mW with a 21% slope efficiency. Across the 1425-1475 nm range, we achieved >117 mW output power with >50 dB in-band optical signal-to-noise ratio (OSNR).
Text
ol-50-1-141
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Accepted/In Press date: 9 December 2024
Published date: 19 December 2024
Identifiers
Local EPrints ID: 497266
URI: http://eprints.soton.ac.uk/id/eprint/497266
ISSN: 0146-9592
PURE UUID: 229f53d4-c282-42b7-90ec-4852d0d6e7c8
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Date deposited: 16 Jan 2025 17:59
Last modified: 22 Aug 2025 01:48
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Author:
Ziwei Zhai
Author:
Jayanta Sahu
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