Mode-division multiplexed transmission of wavelength-division multiplexing signals over a 100-km single-span orbital angular momentum fiber

Junwei Zhang; Junyi Liu; Lei Shen; Lei Zhang; Jie Luo; Jie Liu; Siyuan Yu

doi:10.1364/PRJ.394864

Photonics Research, Volume. 8, Issue 7, 1236(2020)

Mode-division multiplexed transmission of wavelength-division multiplexing signals over a 100-km single-span orbital angular momentum fiber Spotlight on Optics

Junwei Zhang¹, Junyi Liu¹, Lei Shen², Lei Zhang², Jie Luo², Jie Liu^1、*, and Siyuan Yu^1,3,4

Author Affiliations

¹State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510006, China

²State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Yangtze Optical Fiber and Cable Joint Stock Limited Company, Wuhan 430073, China

³Photonics Group, Merchant Venturers School of Engineering, University of Bristol, Bristol BS8 1UB, UK

⁴e-mail: s.yu@bristol.ac.uk

show less

Figures & Tables(8)

Fig. 1. (a) Cross-sectional diagram, (b) RIP, and (c) propagation loss of the RCF used in the experiment.

Download full size

View in Article

Fig. 2. Experimental setup for OAM-MDM/WDM data transmission. The intensity profiles of MGs (i) |l|=2 and (ii) |l|=3 after 100-km RCF transmission. WDM, wavelength-division multiplexer; AWG, arbitrary waveform generator; OC, optical coupler; EDFA, erbium-doped fiber amplifier; PC, polarization controller; Col., collimator; SMF, single-mode fiber; LP, linear polarizer; SLM, spatial light modulator; MR, mirror; PBC, polarizing beam combiner; HWP, half-wave plate; BS, beam splitter; QWP, quarter-wave plate; PBS, polarizing beam splitter; VPP, vortex phase plate; PM, power meter; ICR, integrated coherent receiver; LO, local oscillator. Note that the optical switches are utilized to switch between setups for fiber characterization and data transmission.

Download full size

View in Article

Fig. 3. The absolute values of complex tap weights of the 16 FIR filters in 4×4 MIMO equalizer to equalize the four modes in MGs (a) |l|=2 and (b) |l|=3 after 100-km RCF transmission.

Download full size

View in Article

Fig. 4. Measured BER versus OSNR of MGs (a) |l|=2 and (b) |l|=3 at 1550.12 nm after 100-km RCF transmission; constellation diagrams of the recovered 16-GBaud QPSK signals of all simultaneously transmitted OAM mode channels of MGs (c) |l|=2 and (d) |l|=3 at an OSNR of 24 dB after 100-km RCF transmission.

Download full size

View in Article

Fig. 5. (a) Measured BERs of all 80 channels after 100-km RCF transmission; (b) optical spectra of the 10 WDM channels at the transmitter side.

Download full size

View in Article

Table 1. Data Transmission of RCF-Based MDM Systems in Recent Works

View table

View in Article

Table 1. Data Transmission of RCF-Based MDM Systems in Recent Works

RCF Types	Loss (dB/km)	Signal and MIMO DSP	Number of MDM Channels	Number of WDM Channels	Capacity (Tbit/s)	Distance (km)	Capacity-Distance Product [(Tbit/s) · km]	Refs.
Elliptical ring core	—	QPSK, MIMO free	6	1	0.384	0.9	0.3456	[17,18]
Graded index	—	OOK, MIMO free	2	1	0.02	0.1	0.002	[19]
Step index	—	OOK, MIMO free	2	1	0.02	1	0.02	[20]
Graded index	—	OOK, MIMO free	3	1	0.0375	0.36	0.0135	[21]
Graded index	0.75	16QAM/QPSK-DMT, MIMO free	3	1	0.1	1	0.1	[11]
Graded index	0.75	QPSK-DMT, MIMO free	2	1	0.04	18.4	0.736	[11]
Graded index	1	8QAM, MIMO free	2	112	8.4	18	151.2	[22]
RIP-modulated	0.31	OOK, MIMO free	2	1	0.015	50	0.75	[23]
RIP-modulated	0.21	OOK, MIMO free	2	4	0.12	100	12	[24]
Step index	0.3	16QAM, $10 \times 10$ MIMO	10	1	1.12	1	1.12	[25]
Step index	0.3	QPSK, $10 \times 10$ MIMO	10	1	0.56	24	13.44	[25]
Graded index	1	QPSK, $4 \times 4$ MIMO	8	10	5.12	10	51.2	[12]
RIP-modulated	0.31	QPSK, $4 \times 4$ MIMO	8	10	2.56	50	128	[26]
RIP-modulated	0.21	QPSK, $4 \times 4$ MIMO	8	10	2.56	100	256	This work

Table 2. Characteristics of the Fabricated RCF
View table
View in Article
Table 2. Characteristics of the Fabricated RCF
$| l | = 0$ $| l | = 1$ $| l | = 2$ $| l | = 3$
$Δ n_{eff}$ ( $\times 10^{- 3}$ ) 0.7 1.8 2.5
Attenuation (dB/km) 0.209 0.211 0.208 0.210
DGD (ns/km) 0 3.2 8.5 13.1

Table 3. Measured Inter-MG Crosstalk among the Two Used High-order OAM MGs over the 100-km RCF Transmission System
View table
View in Article
Table 3. Measured Inter-MG Crosstalk among the Two Used High-order OAM MGs over the 100-km RCF Transmission System
Input MG $| l | = 2$ Input MG $| l | = 3$
Output MG $| l | = 2$ Output MG $| l | = 3$ Output MG $| l | = 2$ Output MG $| l | = 3$
Crosstalk (dB) 0 −12.495 −11.486 0

Tools

Get Citation

Copy Citation Text

Junwei Zhang, Junyi Liu, Lei Shen, Lei Zhang, Jie Luo, Jie Liu, Siyuan Yu, "Mode-division multiplexed transmission of wavelength-division multiplexing signals over a 100-km single-span orbital angular momentum fiber," Photonics Res. 8, 1236 (2020)

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites