Design of Two Kinds of Ultra-Broadband Single Polarization Single Mode Photonic Crystal Fibers

Linghong Jiang

doi:10.3788/LOP56.040602

Laser & Optoelectronics Progress, Volume. 56, Issue 4, 040602(2019)

Design of Two Kinds of Ultra-Broadband Single Polarization Single Mode Photonic Crystal Fibers

Linghong Jiang^*

Author Affiliations

Intelligence and Information Engineering College, Tangshan University, Tangshan, Hebei 063000, China

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Figures & Tables(11)

Fig. 1. Cross sections of two kinds of SPSM-PCFs. (a) Type 1; (b) type 2

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$Refractive index of o light and e light in E7 liquid crystal versus wavelength under different temperatures$

Fig. 2. Refractive index of o light and e light in E7 liquid crystal versus wavelength under different temperatures

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Fig. 3. Field distribution of FSM mode at 1.31 μm wavelength

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Fig. 4. Effect of additional air hole on effective index of liquid-crystal-filled PCF

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Fig. 5. SPSM transmission characteristics of PCF. (a) Wavelength-dependent effective index of fiber core; (b) wavelength-dependent confinement loss versus d0

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Fig. 6. SPSM transmission characteristics of PCF. (a) Wavelength-dependent effective index of fiber core; (b) wavelength-dependent confinement loss versus Λ1

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Fig. 7. SPSM transmission characteristic of PCF versus d2

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$Even and odd modes of dual-core PCF in two polarization directions. (a) Effective refractive index versus wavelength; (b) confinement loss versus wavelength$

Fig. 8. Even and odd modes of dual-core PCF in two polarization directions. (a) Effective refractive index versus wavelength; (b) confinement loss versus wavelength

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Fig. 9. Normalized power of dual-core SPSM-PCF wavelength splitter at 1.31 μm and 1.55 μm versus z

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Table 1. Effects of d2 and d0 on coupling lengths at resonance wavelengths of 1.31 μm and 1.55 μm

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Table 1. Effects of d2 and d0 on coupling lengths at resonance wavelengths of 1.31 μm and 1.55 μm

d₂ /μm	$\begin{matrix} {L^{y}}_{c} \end{matrix}$ (1.31)/ $\begin{matrix} {L^{y}}_{c} \end{matrix}$ (1.55)	d₀ /μm	$\begin{matrix} {L^{y}}_{c} \end{matrix}$ (1.31)/ $\begin{matrix} {L^{y}}_{c} \end{matrix}$ (1.55)
1.4	3.94 (1.053/0.267)	0.5	3.25 (0.569/0.175)
1.5	4.02 (1.061/0.264)	0.55	4.02 (1.061/0.264)
1.6	4.14 (1.067/0.258)	0.6	4.85 (1.973/0.407)
1.7	4.37 (1.070/0.245)	0.65	5.65 (3.579/0.634)

Table 2. Tolerance analysis of two kinds of PCFs

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Table 2. Tolerance analysis of two kinds of PCFs

Structure parametervariation	SPSM operation bandwidthof single-core PCF	SPSM operation bandwidthof dual-core PCF
Δd₂=0,Δd₀=0,ΔΛ₁=0	1460 nm (1.13-2.59 μm)	760 nm (0.98-1.74 μm)
Δd₂/ d₂=+1%	1450 nm (1.13-2.58 μm)	750 nm (0.98-1.73 μm)
Δd₂/d₂=-1%	1450 nm (1.15-2.60 μm)	770 nm (0.98-1.75 μm)
Δd₀/ d₀=+1%	1470 nm (1.15-2.62 μm)	780 nm (0.98-1.76 μm)
Δd₀/ d₀=-1%	1430 nm (1.12-2.55 μm)	750 nm (0.98-1.73 μm)
ΔΛ₁/Λ₁=+1%	1450 nm (1.15-2.60 μm)	750 nm (0.98-1.73 μm)
ΔΛ₁/Λ₁=+1%	1460 nm (1.12-2.58 μm)	740 nm (0.98-1.72 μm)
ΔΛ₁/Λ₁=+1%,Δd₂/d₂=+1%,Δd₀/ d₀=+1%	1460 nm (1.15-2.61 μm)	690 nm(1.05-1.74 μm)
ΔΛ₁/Λ₁=-1%,Δd₂/ d₂=-1%,Δd₀/d₀=-1%	1440 nm (1.11-2.55 μm)	670 nm(1.06-1.73 μm)

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Linghong Jiang. Design of Two Kinds of Ultra-Broadband Single Polarization Single Mode Photonic Crystal Fibers[J]. Laser & Optoelectronics Progress, 2019, 56(4): 040602

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Paper Information

Category: Fiber Optics and Optical Communications

Received: Jul. 24, 2018

Accepted: Sep. 4, 2018

Published Online: Jul. 31, 2019

The Author Email: Linghong Jiang (no1shajia@163.com)

DOI:10.3788/LOP56.040602

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology