Article
Optics
Haiyang Wang, Beilei Wu, Haoran Zhou, Wensheng Wang, Guangluan Xu
Summary: In this paper, a tunable frequency-doubling optoelectronic oscillator is proposed and experimentally demonstrated. The oscillator is based on a single-bandpass dispersion-induced microwave photonic filter. By adjusting the components in the oscillator loop, the center frequency can be tuned. The experimental results show that tunable frequency signals at the fundamental frequency and the second-harmonic frequency are generated.
Review
Optics
M. K. Varun, Akhileshwar Mishra, Ravi Pant
Summary: Generation, processing, and sensing of microwave signals using photonic technologies have advantages such as immunity from electromagnetic interference, high-speed operation, and reduced system weight. Stimulated Brillouin scattering (SBS) has emerged as a potential contender for microwave photonic (MWP) signal processing due to its narrow bandwidth, wavelength transparency, low threshold, and bandwidth reconfigurability. This article provides a review of recent developments in the field of SBS-based MWP, discussing different techniques for RF generation, filtering, and true time delay using fiber and on-chip platforms, as well as novel architectures to mitigate impairments.
Review
Physics, Condensed Matter
Mengxi Tan, Xingyuan Xu, Jiayang Wu, Thach G. Nguyen, Sai T. Chu, Brent E. Little, Arnan Mitchell, Roberto Morandotti, David J. Moss
Summary: This paper reviews recent work on narrowband orthogonally polarized optical RF single sideband generators and dual-channel equalization based on high-Q integrated ring resonators. The devices operate in the optical telecommunications C-band and enable RF operation over a range of either fixed or thermally tuneable frequencies, achieving a large dynamic tuning range of over 55 dB for both the optical carrier-to-sideband ratio and the dual-channel RF equalization in both fixed and tunable devices.
JOURNAL OF SEMICONDUCTORS
(2021)
Article
Engineering, Electrical & Electronic
Renheng Zhang, Bei Chen, Wenting Wang, Kunpeng Zhai, Ninghua Zhu
Summary: In this paper, a method for generating triangular-shaped microwave signals based on optical polarization processing and stimulated Brillouin amplification is proposed and experimentally demonstrated. The odd-and even-order optical sidebands are polarized in mutually orthogonal directions using a polarization modulator (PolM) and the power ratio of the odd-order optical sidebands is controlled by adjusting the modulation index. By selecting the odd-order optical sidebands and performing optical carrier recovery, triangular-shaped microwave waveforms are synthesized. The experimental results show flexible tunability and excellent waveforms at repetition frequencies of 10, 11, and 12 GHz.
IEEE PHOTONICS JOURNAL
(2023)
Article
Optics
Lei Wan, Zhiqiang Yang, Wenfeng Zhou, Meixun Wen, Tianhua Feng, Siqing Zeng, Dong Liu, Huan Li, Jingshun Pan, Ning Zhu, Weiping Liu, Zhaohui Li
Summary: In this study, a built-in push-pull acousto-optic modulator is proposed and demonstrated, which has significant applications in microwave-to-optical conversion.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Di Wang, Xindong Zhang, Xueqing Zhao, Zhangyi Yang, Wei Dong
Summary: We propose and theoretically demonstrate a photonic-assisted frequency measurement system based on stimulated Brillouin scattering (SBS) with high accuracy, high resolution, and the capability of multiple frequencies estimation. The system achieves great performance by optimizing the gain spectrum and loss spectrum. It can obtain the frequency information of multiple unknown signals.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Pengcheng Zuo, Dong Ma, Yang Chen
Summary: This paper proposes an all-optical short-time Fourier transform (STFT) based on stimulated Brillouin scattering (SBS) for real-time time-frequency analysis of different radio frequency (RF) signals. By utilizing the SBS gain as a bandpass filter and implementing frequency-to-time mapping (FTTM), the frequency domain information of different time windows can be obtained and analyzed.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Jae Hyeong Youn, Kwang Yong Song
Summary: A polarization-independent Brillouin optical correlation domain analysis system is demonstrated using a single-mode fiber and orthogonally polarized probe sidebands. The system simultaneously measures Brillouin gain and loss on orthogonally polarized Stokes and anti-Stokes probe waves through balanced detection. By processing the output with a differential measurement scheme, the polarization dependency of the Brillouin gain spectrum is suppressed, resulting in double measurement speed and over 50% reduction in error.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Dong Ma, Pengcheng Zuo, Yang Chen
Summary: An approach to evolving the photonics-based real-time Fourier transform or microwave frequency measurement system into a time-frequency analysis system by adding a new measurement dimension is proposed. Two time-frequency analysis links, namely the parallel SBS link and the time-division SBS link, are proposed by combining the above approach with stimulated Brillouin scattering (SBS)-assisted frequency-to-time mapping. The feasibility of the proposed methods is verified through simulation and experiments, demonstrating the multi-dimensional reconfigurability of the system.
OPTICS COMMUNICATIONS
(2022)
Article
Optics
Liang Xu, Guang-fu Bai, Jian Tang, Yan-lin Tang, Yang Jiang
Summary: In this paper, an all-optical microwave oscillator is proposed and experimentally demonstrated. By utilizing cascaded stimulated Brillouin scattering effects, the second-order Stokes wave is generated, leading to the generation of a microwave envelope. The cross-gain modulation of a semiconductor optical amplifier is used to implement microwave envelope detection and feedback modulation, while the Vernier effect is employed to improve the microwave signal. The second Brillouin-selective sideband amplification is used to enhance the oscillation frequency. Experimental results show that the all-optical microwave oscillator can generate a single-mode microwave oscillation signal with a frequency of 21.66 GHz.
OPTICS COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Mian Ali, Shyqyri Haxha, Ian Flint
Summary: A Tuneable Microwave Photonics Gain Filter (TMWPF) based on Stimulated Brillouin Scattering (SBS) is proposed, which has high gain and bandwidth variations for high precision applications.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Reena Parihar, Rajveer Dhawan, Amol Choudhary
Summary: In this paper, a microwave photonic phase shifter using stimulated Brillouin scattering is proposed to improve the dynamic range and noise performance by low-biasing the carrier. Mathematical expressions for the performance metrics of the analog photonic link are derived and experimentally optimized for the first time. The carrier is subjected to gain and loss responses, and low-biasing is achieved using unbalanced loss and gain pumps, resulting in improved performance. Real-life applications and potential uses of the Brillouin RF phase shifter are also demonstrated.
IEEE JOURNAL OF QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Peng Lei, Chenbo Zhang, Mingyu Xu, Bibo He, Huanfa Peng, Xiaopeng Xie, Zhangyuan Chen
Summary: This study discusses the suppression of stimulated Brillouin scattering (SBS) in optical fiber communications through frequency and phase modulation. When the frequency of intensity modulation is much lower than the Brillouin-gain bandwidth, the gain produced by SBS increases significantly, attributed to the nonlinearity of SBS.
IEEE PHOTONICS JOURNAL
(2021)
Article
Optics
Muguang Wang, Yu Tang, Jian Sun, Jing Zhang, Qi Ding, Beilei Wu, Fengping Yan
Summary: An approach based on CPS-DSB modulation for generating high-speed and wideband FSK signals is proposed and experimentally validated. The scheme involves the use of cascaded polarization-sensitive LiNbO3 Mach-Zehnder modulators and phase modulators with orthogonal polarization directions, resulting in successful generation of FSK signals at different carrier frequencies.
CHINESE OPTICS LETTERS
(2021)
Article
Optics
Chuangye Wang, Tigang Ning, Jing Li, Li Pei, Jingjing Zheng, Caijian Xie, Xiaowei Dong
Summary: This paper proposes and demonstrates a novel approach to achieving optical single sideband modulation with tunable carrier-to-sideband ratio. The experimental results show that the proposed method has a wide range of applications.
OPTICS AND LASER TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Haritz Iribas, Javier Urricelqui, Juan Jose Mompo, Jon Marinelarena, Alayn Loayssa
APPLIED SCIENCES-BASEL
(2017)
Article
Optics
Juan Jose Mompo, Sonia Martin-Lopez, Miguel Gonzalez-Herraez, Alayn Loayssa
Article
Engineering, Electrical & Electronic
Jon Marinelarena, Yong Hyun Kim, Alayn Loayssa, Kwang Yong Song
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2018)
Article
Optics
Jon Marinelarena, Haritz Iribas, Alayn Loayssa
Article
Optics
Jon Marinelarena, Haritz Iribas, Avier Urricelqui, Alayn Loayssa
Article
Engineering, Electrical & Electronic
Juan Jose Mompo, Lihi Shiloh, Nadav Arbel, Nadav Levanon, Alayn Loayssa, Avishay Eyal
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2019)
Article
Optics
Mikel Sagues, Enrique Pineiro, Enis Cerri, Aldo Minardo, Avishay Eyal, Alayn Loayssa
Summary: The paper presents a two-wavelength OTDR sensor using perfect periodic correlation phase codes to enhance measurement performance. While this technique increases measurement range, it also introduces relative measurement noise, which is addressed through optical pulse compression and other methods. Results show improved spatial resolution, strain sensitivity, and measurement range compared to conventional methods.
Article
Engineering, Electrical & Electronic
Alayn Loayssa, Mikel Sagues, Avishay Eyal
Summary: This paper presents a detailed study on the effects of laser's phase noise on the performance of phase-sensitive optical time-domain reflectometry (phi-OTDR) sensors that use optical pulse compression (OPC). A theoretical model is derived to quantify the degradation caused by the limited coherence of the laser source. The model is validated through numerical simulations and experiments, and theoretical expressions for the phase-noise perturbed backscatter response are obtained. Furthermore, the model is used to investigate the trade-offs involved in the design of OPC phi-OTDR systems.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Inigo Corera, Enrique Pineiro, Javier Navallas, Mikel Sagues, Alayn Loayssa
Summary: We present a new long-range traffic monitoring system using fiber-optic distributed acoustic sensing (DAS) for vehicle detection, tracking, and classification. The system achieves high resolution and long range through an optimized setup incorporating pulse compression. The raw data is processed using a novel transformed domain algorithm based on the Hough Transform, enabling automatic vehicle detection and tracking, as well as the extraction of unique vehicle signatures for machine learning-based classification. Experimental results show excellent performance, with a general classification rate of 97.7% for detecting vehicle passing events and 99.6% and 85.7% for specific car and truck passing events, respectively.
Proceedings Paper
Optics
J. Marinelarena, J. Mompo, J. Zurita, J. Urricelqui, A. Jundez, Lopez Amo M, S. Jimenez, A. Achaerandio, A. Loayssa
SENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2019
(2019)
Proceedings Paper
Optics
Alayn Loayssa, Javier Urricelqui, Haritz Iribas, Jon Marinelarena, Juan Jose Mompo
OPTICAL, OPTO-ATOMIC, AND ENTANGLEMENT-ENHANCED PRECISION METROLOGY
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
Cheng Feng, Haritz Iribas, Jon Marinelarena, Thomas Schneider, Alayn Loayssa
2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Jon Marinelarena, Javier Urricelqui, Alayn Loayssa
2017 25TH INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS (OFS)
(2017)
