1.56 μm and 2.86 μm Raman lasers based on gas-filled anti-resonance hollow-core fiber

Wei Huang; Yulong Cui; Zhixian Li; Zhiyue Zhou; Zefeng Wang

doi:doi:10.3788/COL201917.071406

Chinese Optics Letters, 2019, 17 (7): 071406, Published Online: Jul. 9, 2019

1.56 μm and 2.86 μm Raman lasers based on gas-filled anti-resonance hollow-core fiber Download： 725次

Wei Huang ¹Yulong Cui ¹Zhixian Li ¹Zhiyue Zhou ¹Zefeng Wang ^1,2,3,*

Author Affiliations

¹ College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

² State Key Laboratory of Pulsed Power Laser Technology, Changsha 410073, China

³ Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha 410073, China

Figures & Tables

Fig. 1. Experimental setup: M, coated high-reflection mirror; $λ / 2$ , half-wave plate; PBS, polarization beam splitter; L, convex-plane lens; W, anti-reflection coated window with high transmission rate; GC, gas cell; PM, power meter; BP, band-pass filter.

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Fig. 2. Transmission spectra of (a) HCF1 and (b) HCF2 measured with the cut-off method. Insets: the scanning electron micrographs of the HCFs’ cross sections.

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Fig. 3. Measured optical spectra of 2 m deuterium-filled HCFs with different gas pressure and coupled pump power. VS, vibrational Stokes; VAS, vibrational anti-Stokes; RS, rotational Stokes; RAS, rotational anti-Stokes. VS1: 1560.9 nm; VAS1: 807.5 nm; VAS2: 650.5 nm; VAS3: 544.6 nm; RS1: 1113.6 nm; RAS1: 1019.4 nm; $VS 1 + RS 1$ : 1669 nm; $VS 1 + RAS 1$ : 1466 nm; $VS 1 + RS 2$ : 1793 nm; VS1 + RS3: 1937.2 nm. Ortho RS, rotational SRS of ortho deuterium.

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Fig. 4. Measured (a) pump and (b) Stokes pulse shape using a fast detector and a broad bandwidth oscilloscope with a 2 m HCF filled with 4 bar of deuterium gas.

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Fig. 5. (a) Output power and (b) Raman conversion efficiency at 1560.9 nm in a 2 m HCF change with incident pump power and deuterium pressure in the first stage.

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Fig. 6. Measured spectrum of the output of HCF2 in the second stage, measured with 2.2 m fiber length and 12 bar methane pressure. The change of the noise level at 1500 nm is due to the change of the OSAs, so the relative intensities should be taken only as indicative. Inset: measured fine spectrum near 1064.6 nm (left), 1560.9 nm (middle), and 2865.5 nm (right), respectively, with an OSA resolution of 0.02 nm.

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Fig. 7. (a) Output power and (b) Raman conversion efficiency at 2865.5 nm in a 2.2 m HCF changing with incident 1560.9 nm power and methane pressure in the second stage.

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Wei Huang, Yulong Cui, Zhixian Li, Zhiyue Zhou, Zefeng Wang. 1.56 μm and 2.86 μm Raman lasers based on gas-filled anti-resonance hollow-core fiber[J]. Chinese Optics Letters, 2019, 17(7): 071406.

1.56 μm and 2.86 μm Raman lasers based on gas-filled anti-resonance hollow-core fiber Download： 725次

Fig. 1. Experimental setup: M, coated high-reflection mirror; $λ / 2$ , half-wave plate; PBS, polarization beam splitter; L, convex-plane lens; W, anti-reflection coated window with high transmission rate; GC, gas cell; PM, power meter; BP, band-pass filter.

Fig. 2. Transmission spectra of (a) HCF1 and (b) HCF2 measured with the cut-off method. Insets: the scanning electron micrographs of the HCFs’ cross sections.

Fig. 4. Measured (a) pump and (b) Stokes pulse shape using a fast detector and a broad bandwidth oscilloscope with a 2 m HCF filled with 4 bar of deuterium gas.

Fig. 5. (a) Output power and (b) Raman conversion efficiency at 1560.9 nm in a 2 m HCF change with incident pump power and deuterium pressure in the first stage.

Fig. 7. (a) Output power and (b) Raman conversion efficiency at 2865.5 nm in a 2.2 m HCF changing with incident 1560.9 nm power and methane pressure in the second stage.

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1.56 μm and 2.86 μm Raman lasers based on gas-filled anti-resonance hollow-core fiber Download： 725次

Fig. 1. Experimental setup: M, coated high-reflection mirror; λ/2, half-wave plate; PBS, polarization beam splitter; L, convex-plane lens; W, anti-reflection coated window with high transmission rate; GC, gas cell; PM, power meter; BP, band-pass filter.

Fig. 2. Transmission spectra of (a) HCF1 and (b) HCF2 measured with the cut-off method. Insets: the scanning electron micrographs of the HCFs’ cross sections.

Fig. 4. Measured (a) pump and (b) Stokes pulse shape using a fast detector and a broad bandwidth oscilloscope with a 2 m HCF filled with 4 bar of deuterium gas.

Fig. 5. (a) Output power and (b) Raman conversion efficiency at 1560.9 nm in a 2 m HCF change with incident pump power and deuterium pressure in the first stage.

Fig. 7. (a) Output power and (b) Raman conversion efficiency at 2865.5 nm in a 2.2 m HCF changing with incident 1560.9 nm power and methane pressure in the second stage.

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Fig. 1. Experimental setup: M, coated high-reflection mirror; $λ / 2$ , half-wave plate; PBS, polarization beam splitter; L, convex-plane lens; W, anti-reflection coated window with high transmission rate; GC, gas cell; PM, power meter; BP, band-pass filter.