Tunable Supercontinuum Generation in Chalcogenide Suspension Core Fibers via Temperature Control

Zhongyao Wang; Tiantian Zhang; Weihua Shi

doi:10.3788/CJL202148.0306001

Chinese Journal of Lasers, Volume. 48, Issue 3, 0306001(2021)

Tunable Supercontinuum Generation in Chalcogenide Suspension Core Fibers via Temperature Control

Zhongyao Wang, Tiantian Zhang, and Weihua Shi^*

College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210023, China

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Figures & Tables(10)

Fig. 1. Preparation and mode diagrams of microstructure fiber. (a) Fiber cross section; (b) preparation of preforms by extrusion method; (c) basic mode diagram

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Fig. 2. Relationship between dispersion and wavelength when fiber core diameter is 3μm

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Fig. 3. SC generated under different fiber core diameters. (a) Fiber core diameter is 2μm; (b) fiber core diameter is 3μm; (c) fiber core diameter is 4μm; (d) fiber core diameter is 5μm

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Fig. 4. Tunable SC for different critical temperatures and initial pulse widths. (a) Initial pulse width is 280fs; (b) initial pulse width is 300fs; (c) initial pulse width is 320fs; (d) initial pulse width is 340fs

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Fig. 5. Tunable SC at different critical temperatures and peak powers. (a) Peak power is 18kW; (b) peak power is 20kW; (c) peak power is 22kW; (d) peak power is 24kW

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Fig. 6. Tunable SC produced at different temperatures

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Table 1. Material-related physical properties^[19-21]

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Table 1. Material-related physical properties^[19-21]

Material	Temperature range from freezingpoint to boiling point /℃	Temperature sensitivitycoefficient α /℃^-1	Refractive index(λ=20μm, 20 ℃)
Toluene	-95--110.6	5.273×10^-4	~1.476
As₂Se₃	360 (melting point)	—	~2.790

Table 2. Location of ZDW at critical temperatures for different fiber core diameters μm
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Table 2. Location of ZDW at critical temperatures for different fiber core diameters μm
Temperature /℃ 2μm 3μm 4μm 5μm
-90 2.64 3.14 3.55 3.93
110 2.61 3.10 3.50 3.90

Table 3. Nonlinear coefficients at different criticaltemperatures for different fiber core diameters 10^-9 W·nm^-1
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Table 3. Nonlinear coefficients at different criticaltemperatures for different fiber core diameters 10^-9 W·nm^-1
Temperature /℃ 2μm 3μm 4μm 5μm
-90 6.6097 2.8019 1.4122 0.8330
110 6.6905 2.8293 1.4245 0.8397

Table 4. Spectral flatness at critical temperatures for different fiber core diameters
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Table 4. Spectral flatness at critical temperatures for different fiber core diameters
Temperature /℃ 2μm 3μm 4μm 5μm
-90 0.8879 0.8765 0.9024 0.9156
110 0.8942 0.8714 0.9022 0.9156

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Zhongyao Wang, Tiantian Zhang, Weihua Shi. Tunable Supercontinuum Generation in Chalcogenide Suspension Core Fibers via Temperature Control[J]. Chinese Journal of Lasers, 2021, 48(3): 0306001

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Paper Information

Category: fiber optics and optical communications

Received: Jul. 21, 2020

Accepted: Sep. 7, 2020

Published Online: Feb. 2, 2021

The Author Email: Shi Weihua (shiwh@njupt.edu.cn)

DOI:10.3788/CJL202148.0306001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Material-related physical properties[19-21]

Table 1. Material-related physical properties[19-21]

Table 2. Location of ZDW at critical temperatures for different fiber core diameters μm

Table 2. Location of ZDW at critical temperatures for different fiber core diameters μm

Table 3. Nonlinear coefficients at different criticaltemperatures for different fiber core diameters 10-9 W·nm-1

Table 3. Nonlinear coefficients at different criticaltemperatures for different fiber core diameters 10-9 W·nm-1

Table 4. Spectral flatness at critical temperatures for different fiber core diameters

Table 4. Spectral flatness at critical temperatures for different fiber core diameters

Table 1. Material-related physical properties^[19-21]

Table 1. Material-related physical properties^[19-21]

Table 3. Nonlinear coefficients at different criticaltemperatures for different fiber core diameters 10^-9 W·nm^-1

Table 3. Nonlinear coefficients at different criticaltemperatures for different fiber core diameters 10^-9 W·nm^-1