Laser diode-pumped dual-cavity high-power fiber laser emitting at 1150 nm employing hybrid gain

Yizhu Chen; Hu Xiao; Jiangming Xu; Jinyong Leng; Pu Zhou

doi:10.1364/AO.55.003824

Applied Optics
Vol. 55,
Issue 14,
pp. 3824-3828
(2016)
•https://doi.org/10.1364/AO.55.003824

Laser diode-pumped dual-cavity high-power fiber laser emitting at 1150 nm employing hybrid gain

Yizhu Chen, Hu Xiao, Jiangming Xu, Jinyong Leng, and Pu Zhou

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Yizhu Chen, Hu Xiao, Jiangming Xu, Jinyong Leng, and Pu Zhou, "Laser diode-pumped dual-cavity high-power fiber laser emitting at 1150 nm employing hybrid gain," Appl. Opt. 55, 3824-3828 (2016)

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Abstract

We demonstrate a laser diode-pumped dual-cavity high-power fiber laser emitting at 1150 nm. The laser employs Yb and Raman gains simultaneously. The fiber laser with a simple structure achieves high-efficiency operation while efficiently suppressing the amplified spontaneous emission and parasitic oscillation. The maximum output power at 1150 nm is 110.8 W, with an optical-to-optical efficiency of 57%. Further power scaling at 1150 nm is expected with the optimization of the system design.

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Parameter	Value
$N$	$5 \times 10^{25} / m^{3}$
$τ$	0.8 ms
$α_{p}$	0.003/m
$α_{s}$	0.005/m
$σ_{e}$	$2.43 \times 10^{- 24}$ ( $λ = 976 nm$ )
	$2.26 \times 10^{- 25}$ ( $λ = 1090 nm$ )
	$3.77 \times 10^{- 26}$ ( $λ = 1150 nm$ )
$σ_{a}$	$2.43 \times 10^{- 24}$ ( $λ = 976 nm$ )
	$1.3 \times 10^{- 27}$ ( $λ = 1090 nm$ )
	$2.15 \times 10^{- 29}$ ( $λ = 1150 nm$ )
$g_{R}$	$5.3 \times 10^{- 14} W^{- 1} m^{- 1}$
$Γ_{s}$	0.8
R1	0.9 ( $λ = 1090 nm$ )
	0.9 ( $λ = 1150 nm$ )
R2	0.9 ( $λ = 1090 nm$ )
	0.1 ( $λ = 1150 nm$ )

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