Journal of Optical Communications最新文献

A fiber-wireless integration approach in WDM-PON architecture, boosted with polarization multiplexing and optical frequency comb source 波分复用-光接入网架构中的光纤-无线集成方法，利用偏振复用和光频梳源进行增强

Journal of Optical Communications Pub Date : 2024-06-17 DOI: 10.1515/joc-2024-0071

Ankita Lamba, Jyoti Sehgal, Manoj Kumar, Eisha Akanksha

引用次数: 0

Performance study of microwave photonic links by considering the effect of phase shifters and bias conditions on dual-drive dual parallel Mach–Zehnder modulator 通过考虑移相器和偏置条件对双驱动双并联马赫-泽恩德调制器的影响进行微波光子链路性能研究

Journal of Optical Communications Pub Date : 2024-06-17 DOI: 10.1515/joc-2024-0012

Sarika Singh, Sandeep K. Arya, S. Singla, Pulkit Berwal

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Hybrid optical-electronic compensation of fiber nonlinearity for long-haul coherent optical transmission 用于长距离相干光传输的光纤非线性光电混合补偿技术

Journal of Optical Communications Pub Date : 2024-06-13 DOI: 10.1515/joc-2024-0110

Xiaogang Tong, Wei Huang, Weiwei Cao, Junsheng Zhang, Xiaojuan Zhang

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Performance parameters estimation of high speed Silicon/Germanium/InGaAsP avalanche photodiodes wide bandwidth capability in ultra high speed optical communication system 超高速光通信系统中高速硅/锗/砷化镓雪崩光电二极管宽带能力的性能参数评估

Journal of Optical Communications Pub Date : 2024-06-11 DOI: 10.1515/joc-2024-0099

Anitha Gopalan, Arumugam Krishnan Arulmozhi, Manimaraboopathy Maruthu Pandian, Priscilla Mohanadoss, Nithya Dorairajan, M. Balaji, Aziz Mahoumd Taher

{"title":"Performance parameters estimation of high speed Silicon/Germanium/InGaAsP avalanche photodiodes wide bandwidth capability in ultra high speed optical communication system","authors":"Anitha Gopalan, Arumugam Krishnan Arulmozhi, Manimaraboopathy Maruthu Pandian, Priscilla Mohanadoss, Nithya Dorairajan, M. Balaji, Aziz Mahoumd Taher","doi":"10.1515/joc-2024-0099","DOIUrl":"https://doi.org/10.1515/joc-2024-0099","url":null,"abstract":"Abstract This paper has clarified the performance parameters estimation of high speed silicon/germanium/InGaAsP avalanche photodiodes wide bandwidth capability in ultrahigh speed optical communication system. The basic structure configuration of avalanche photodiode is clarified. The basic depletion region configuration schematic view is demonstrated. As well as the maximum electric field is indicated for impact ionization through avalanche photodiode in the presence of load. Various avalanche photo-detectors multiplication factor is clarified versus reverse bias voltage at room temperature. Different avalanche photo-detectors dark current is measured against avalanche photo-detectors volume at room temperature. Various avalanche photo-detectors effective doping concentration is demonstrated against ambient temperature variations. Si/Ge/InGaAsP avalanche photo-detectors excess noise factor is demonstrated versus the ionization ratio at room temperature (T = 300 K) and different ambient temperature (T = 350 K and T = 400 K). Various avalanche photo-detectors excess noise factor is measured clearly versus the multiplication factor at room temperature. Si/Ge/InGaAsP avalanche photo-detectors excess noise factor is demonstrated versus reverse bias voltage at room temperature. Si/Ge/InGaAsP avalanche photo-detectors noise equivalent power is clarified versus multiplication factor at room temperature. Various avalanche photo-detectors noise equivalent power is studied versus temperature variations. Si/Ge/InGaAsP avalanche photo-detectors sensitivity is measured in relation to the temperature variations. Different avalanche photo-detectors sensitivity is demonstrated in relation to reverse bias voltage variations at room temperature.","PeriodicalId":16675,"journal":{"name":"Journal of Optical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141356658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Implementation of companding scheme for performance enhancement of optical OFDM structure 为提高光学 OFDM 结构性能而实施的压缩方案

Journal of Optical Communications Pub Date : 2024-06-07 DOI: 10.1515/joc-2024-0095

Pushpendu Kanjilal, Arun Kumar, Soumitra Bhowmick, Jnaneshwar Pai Maroor, Aziz Nanthaamornphong

{"title":"Implementation of companding scheme for performance enhancement of optical OFDM structure","authors":"Pushpendu Kanjilal, Arun Kumar, Soumitra Bhowmick, Jnaneshwar Pai Maroor, Aziz Nanthaamornphong","doi":"10.1515/joc-2024-0095","DOIUrl":"https://doi.org/10.1515/joc-2024-0095","url":null,"abstract":"Abstract Due to its great spectral efficiency and resistance to multi-path fading, OFDM, or orthogonal frequency division multiplexing, is commonly utilized in optical communication systems. However, because of nonlinear distortions in optical components, OFDM signals are prone to a high peak-to-average power ratio (PAPR), which can severely impair bit error rate (BER) performance. This paper introduces a companding scheme to address high PAPR in optical OFDM systems and improve BER performance. The proposed scheme uses a nonlinear transformation to compress signal peaks and expand valleys, effectively reducing PAPR. Specifically, we investigate the µ-law companding technique, known for its simplicity and effectiveness in handling the active range of OFDM signals in optical communication. The companded signals are transmitted through an optical link and demodulated at the receiver. Simulation results show that the µ-law companding technique substantially reduces PAPR, leading to a significant improvement in BER performance. The companding process maintains signal integrity and spectral efficiency with minimal computational complexity and implementation cost. By mitigating nonlinearities introduced by optical components, this companding scheme enhances the overall reliability and efficiency of the optical OFDM system. An SNR gain of 2 dB–3 dB was achieved at a BER of 10−3.","PeriodicalId":16675,"journal":{"name":"Journal of Optical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141374892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High thermal stability and high-performance efficiency capability of light sources–based rate equation models in optical fiber transmission systems 光纤传输系统中基于光源的速率方程模型的高热稳定性和高性能效率能力

Journal of Optical Communications Pub Date : 2024-06-07 DOI: 10.1515/joc-2024-0090

R. T. Prabu, Arumugam Krishnan Arulmozhi, Sreeja Vijay, Thulasi Bai Vijayan, Deepa Sivaraman, Merline Arulraj, Alaa Hosny Mahrous

{"title":"High thermal stability and high-performance efficiency capability of light sources–based rate equation models in optical fiber transmission systems","authors":"R. T. Prabu, Arumugam Krishnan Arulmozhi, Sreeja Vijay, Thulasi Bai Vijayan, Deepa Sivaraman, Merline Arulraj, Alaa Hosny Mahrous","doi":"10.1515/joc-2024-0090","DOIUrl":"https://doi.org/10.1515/joc-2024-0090","url":null,"abstract":"Abstract This paper clarified the high thermal stability and high-performance efficiency capability of silicon light sources–based rate equation models in the optical fiber transmission systems. The laser diode and light emitting diode output power variations are measured with input injection current under various ambient temperature effects. The light source differential quantum efficiency is demonstrated for both LED and laser diode with different injection input current and various temperature variations. The LED/laser diode light source external efficiency is clarified with different injection input current and various temperature variations. The LED/laser diode light source total efficiency is measured with different injection input current and various temperature variations. As well as the laser diode and light emitting diode, threshold current variations are demonstrated clearly with input injection current under room temperature and various spectral thermal effects. The laser diode and light emitting diode power dissipation variations are measured with input injection current under room temperature and various spectral thermal effects.","PeriodicalId":16675,"journal":{"name":"Journal of Optical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141371401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis of high index core micro structured optical fibers (HIMSOF) and hollow core band gap fibers (HCBGF) performance efficiency in fiber communication system 光纤通信系统中高指数纤芯微结构光纤（HIMSOF）和中空纤芯带隙光纤（HCBGF）性能效率的比较分析

Journal of Optical Communications Pub Date : 2024-06-06 DOI: 10.1515/joc-2024-0085

Govindaraj Ramkumar, Vinodhini Rajasekaran, Deepa Sivaraman, Sivakumar Arumugam, H. Praveena, Samuda Prathima, Ahmed Ali Zahran

引用次数: 0

MZM–SOA based RoF system for 30-tuple millimeter-wave generation 基于 MZM-SOA 的 RoF 系统用于 30 倍增毫米波发电

Journal of Optical Communications Pub Date : 2024-06-05 DOI: 10.1515/joc-2024-0082

Ajay Kumar, Deepak Kedia, Shelly Singla

引用次数: 0

A hybrid approach combining OFC and FSO for multichannel connectivity 将 OFC 和 FSO 结合起来实现多通道连接的混合方法

Journal of Optical Communications Pub Date : 2024-04-22 DOI: 10.1515/joc-2024-0042

Iqra Khalil, Kanza Noor, Farhan Qamar, Romana Shahzadi

{"title":"A hybrid approach combining OFC and FSO for multichannel connectivity","authors":"Iqra Khalil, Kanza Noor, Farhan Qamar, Romana Shahzadi","doi":"10.1515/joc-2024-0042","DOIUrl":"https://doi.org/10.1515/joc-2024-0042","url":null,"abstract":"\u0000 This paper presents a novel approach of establishing a multichannel optical communication link, combining optical fiber cable (OFC) and free space optics (FSO) technology. By leveraging multiple lengths of optical fiber and FSO links, along with optical amplifiers to counteract attenuation, our proposed hybrid system incorporates four channels operating within the 1550 nm window. This model is specifically designed to address communication challenges in scenarios such as unplanned urban layouts, multistory buildings, or rugged terrains where traditional optical fiber deployment is impractical. By integrating FSO for the fronthaul and optical fiber for the backhaul, our system enhances transmission capacity, thereby supporting the requirements of next-generation networks and alleviating bottlenecks and connectivity issues at the last or first mile. This innovative approach holds promise for internet service providers, enterprises, and industrial networks operating in demanding environments. Furthermore, it can serve as a vital tool for restoring emergency communication links in the aftermath of disasters such as earthquakes or floods, where traditional wired optical infrastructure may be compromised.","PeriodicalId":16675,"journal":{"name":"Journal of Optical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140673374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance analysis of 4QAM-OFDM-FSO link under rain weather conditions 雨天条件下的 4QAM-OFDM-FSO 链路性能分析

Journal of Optical Communications Pub Date : 2024-04-22 DOI: 10.1515/joc-2024-0021

Saruchi Attri, Charu Madhu, Daljeet Kaur

{"title":"Performance analysis of 4QAM-OFDM-FSO link under rain weather conditions","authors":"Saruchi Attri, Charu Madhu, Daljeet Kaur","doi":"10.1515/joc-2024-0021","DOIUrl":"https://doi.org/10.1515/joc-2024-0021","url":null,"abstract":"\u0000 Free space optical communication (FSO) is a technique based on transmission of data by propagating the light in free space. FSO is inexpensive, providing high data rates, high capacity, high security, and low power and uses the license free frequency spectrum. Nevertheless, FSO is still facing many problems such as bad weather conditions, atmospheric turbulence, and multipath fading. In this research work, orthogonal frequency division multiplexing (OFDM) FSO system is analyzed for low to heavy rain fall intensities. Different rain rates have been considered for low, moderate, heavy, very heavy, and torrential rains. For all the rain rates, a direct detection OFDM–FSO system and a coherent detection system have been simulated and results are compared. Analysis has been done on the basis of SNR, received power, and constellation diagrams. According to these parameters, link length of both the systems for different rain rates was found. Coherent detection is applied to improve the system sensitivity compared to conventional direct detection. In tropical regions where heavy rainfall is the main reason for the degradation of the system, the OFDM system with coherent detection can perform better with high data rates. Second, over a 11 km FSO, a 4-QAM wireless signal is successfully transmitted under very heavy rainfall conditions. The distance achieved by moderate and heavy rains is 25 km and 15.5 km with an acceptable SNR of 25 dB and a system sensitivity (received power) of −65.1 dBm.","PeriodicalId":16675,"journal":{"name":"Journal of Optical Communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140673185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0