Silicon Photonics in Optical Access Networks for 5G Communications

Guan, Xun; Shi, Wei; Liu, Jia; Tan, Peng Hui; Slevinsky, Jim; Rusch, Leslie A.

doi:10.1109/mcom.001.2001005

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…Highly wavelength flexible silicon photonic (SiP) integrated circuits can provide low noise, low crosstalk, high yield and small footprint when compared to discrete semiconductor components [3], and these advantages have been exploited by recent works focusing on RoF for C-RAN and converged service applications [4]. In [5], we demonstrated the transmission of multi-band intermediate frequency (IF) ARoF signals through a low cross-talk wavelength and space flexible SiP microring resonator (MRR) based optical switch.…”

Section: Introductionmentioning

confidence: 99%

Low Noise Ultra-Flexible SiP Switching Platform for mmWave OCDM & Multi-Band OFDM ARoF Fronthaul

Dass

Dai

Bergman

et al. 2023

IEEE Photon. Technol. Lett.

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A highly flexible wavelength and space switched analog radio-over-fiber (ARoF) fronthaul transmission of a millimeter-wave (mmWave) emerging 6G waveform over a centralized/cloud radio access network (C-RAN) is experimentally demonstrated in this work. A spread spectrum multiplexing technique -orthogonal chirp division multiplexing (OCDM)which is highly resilient to inter-channel interference and enables enhanced channel estimation is utilized in the fronthaul transmission demonstration. The flexible properties of a low noise silicon photonic (SiP) microring resonator (MRR) based tunable laser and a low cross-talk 4×4 SiP optical wavelength/space switch are combined to form a reconfigurable 10 km fronthaul system enabling 64-QAM OCDM transmission at 24 GHz with consistent performances ∼5% EVM across all test wavelengths/ports. A signal constituting Wi-Fi and 5G NR standard compatible 64-QAM orthogonal frequency division multiplexing (OFDM) bands, at 10 GHz and 24 GHz respectively, are also transmitted and evaluated in the proposed system with EVM performances below 64-QAM EVM limit (8%) achieved, thus demonstrating the system's potential in a future converged multi-service environment.

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Section: Introductionmentioning

confidence: 99%

Low Noise Ultra-Flexible SiP Switching Platform for mmWave OCDM & Multi-Band OFDM ARoF Fronthaul

Dass

Dai

Bergman

et al. 2023

IEEE Photon. Technol. Lett.

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“…Thanks to the advancements in manufacturing processes of complementary metal-oxide-semiconductor (CMOS), high performance, high yield and low-cost silicon photonics (SiPh) based integrated circuits can be manufactured [ 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. Many high-performance SiPh-integrated devices for optical communication have been proposed and demonstrated [ 28 , 29 , 30 , 31 , 32 ]. Besides, using integrated SiPh devices to achieve high-performance optical interconnects and switches has also been realized [ 33 , 34 , 35 , 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

Flexible Data Rate Allocation Using Non-Orthogonal Multiple Access (NOMA) in a Mode Division Multiplexing (MDM) Optical Power Splitter for System-on-Chip Networks

Lin,

Chow,

et al. 2023

Sensors

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We put forward and demonstrate a silicon photonics (SiPh)-based mode division multiplexed (MDM) optical power splitter that supports transverse-electric (TE) single-mode, dual-mode, and triple-mode (i.e., TE0, TE1, and TE2). An optical power splitter is needed for optical signal distribution and routing in optical interconnects. However, a traditional optical splitter only divides the power of the input optical signal. This means the same data information is received at all the output ports of the optical splitter. The powers at different output ports may change depending on the splitting ratio of the optical splitter. The main contributions of our proposed optical splitter are: (i) Different data information is received at different output ports of the optical splitter via the utilization of NOMA. By adjusting the power ratios of different channels in the digital domain (i.e., via software control) at the Tx, different channel data information can be received at different output ports of the splitter. It can increase the flexibility of optical signal distribution and routing. (ii) Besides, the proposed optical splitter can support the fundamental TE0 mode and the higher modes TE1, TE2, etc. Supporting mode-division multiplexing and multi-mode operation are important for future optical interconnects since the number of port counts is limited by the chip size. This can significantly increase the capacity besides wavelength division multiplexing (WDM) and spatial division multiplexing (SDM). The integrated SiPh MDM optical power splitter consists of a mode up-conversion section implemented by asymmetric directional couplers (ADCs) and a Y-branch structure for MDM power distribution. Here, we also propose and discuss the use of the Genetic algorithm (GA) for the MDM optical power splitter parameter optimization. Finally, to provide adjustable data rates at different output ports after the MDM optical power splitter, non-orthogonal multiple access—orthogonal frequency division multiplexing (NOMA-OFDM) is also employed. Experimental results validate that, in three modes (TE0, TE1, and TE2), user-1 and user-2 achieve data rates of (user-1: greater than 22 Gbit/s; user-2: greater than 12 Gbit/s) and (user-1: greater than 12 Gbit/s; user-2: 24 Gbit/s), respectively, at power-ratio (PR) = 2.0 or 3.0. Each channel meets the hard-decision forward-error-correction (HD-FEC, i.e., BER = 3.8 × 10−3) threshold. The proposed method allows flexible data rate allocation for multiple users for optical interconnects and system-on-chip networks.

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“…By 2030, 5G services are expected to become widespread and enable communications for applications currently in their infancy, such as virtual reality and autonomous vehicles [1]. Due to 5G's high needs for coverage, bandwidth, and low latency, passive optical networks (PONs) of the subsequent generation will become even more prevalent [2]. Future wireless technology deployment will depend on PONs' smooth connectivity to cloud computing resources and wireless access networks.…”

Section: Introductionmentioning

confidence: 99%

Modelling and simulation of optical transmitter for 5G passive optical networks

Abbas

Aldhaibani

2022

IJEECS

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5G is altering the communications future. The 5G literature focuses on wireless and radio technology, but fiber optics play a crucial supporting role in signal transmission to and from the next generation of base stations (BSs) that will serve customers. With the increasing bandwidth requirements of 5G ultra-high-speed applications, passive optical networks (PONs) are the optimal solution. Targeting long-reach 5G PONs, an integrated, high-speed, and cost-effective optical transmitter circuit was constructed and tested. This engine can be combined into a 5G-compliant optical transceiver module. For the purpose of validating the engine performance, a theoretical analysis and an OptiSim<sup>TM</sup>-based design simulation model are carried out. Bit error rate (BER), phase-shifting, and eye diagram were all taken into account when analyzing the transmitter performance. The article findings validate the optical transmitter design. The design is cost-effective and requires no extra components, such as a filter.

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Silicon Photonics in Optical Access Networks for 5G Communications

Cited by 9 publications

References 11 publications

Low Noise Ultra-Flexible SiP Switching Platform for mmWave OCDM & Multi-Band OFDM ARoF Fronthaul

Low Noise Ultra-Flexible SiP Switching Platform for mmWave OCDM & Multi-Band OFDM ARoF Fronthaul

Flexible Data Rate Allocation Using Non-Orthogonal Multiple Access (NOMA) in a Mode Division Multiplexing (MDM) Optical Power Splitter for System-on-Chip Networks

Modelling and simulation of optical transmitter for 5G passive optical networks

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