Theoretical Demonstration of Improved Performance in Multi-Channel Photonic RF Signals Based on Optical Injection Locking of Optical Comb and Array Lasersopen access
- Authors
- Nguyen, Anh-Hang; Jeong, Hyo-Sang; Shin, Hyungsik; Sung, Hyuk-Kee
- Issue Date
- Feb-2024
- Publisher
- Multidisciplinary Digital Publishing Institute (MDPI)
- Keywords
- multi-channel RF signals; optical injection locking; photonic RF signal generation
- Citation
- Photonics, v.11, no.2
- Journal Title
- Photonics
- Volume
- 11
- Number
- 2
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/33051
- DOI
- 10.3390/photonics11020143
- ISSN
- 2304-6732
2304-6732
- Abstract
- Multi-channel radio frequency (RF) signal generation, facilitated by photonic technology, offers significant potential for generating coherent signals with a high frequency and low phase noise, providing multifunctional capabilities across diverse platforms, including RF and photonic systems. Traditional methods for multi-channel photonic RF signal generation typically entail the integration of diverse optical components, such as filters and amplifiers. However, this integration often results in compromises related to power efficiency, cost-effectiveness, and implementation simplicity. To address these challenges, we propose a novel method for generating multi-channel photonic RF signals based on optical injection locking technology. This approach eliminates the necessity for traditional optical components, leading to a substantial enhancement in the performance of photonic RF signals. We present the design of an optical injection locking-based multi-channel photonic RF signal generation schematic and theoretically evaluate its Signal-to-Noise Ratio (SNR) and eye pattern performance for data modulation using the Lumerical INTERCONNECT simulator. Our results reveal a significant 1.3-dB and 3.6-dB enhancement in SNR for 30-GHz and 60-GHz signals, respectively. Furthermore, we observed an improved communication performance, as evidenced by enhanced eye patterns in 3-Gbps data transmission compared to passive photonic RF signal generation methods. © 2024 by the authors.
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