Fiber and Integrated Optics最新文献_第4页

Flexible Multi-band Dual-chirped Microwave Waveforms Generation with Double Bandwidth 双带宽柔性多波段双啁啾微波波形生成

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2021-11-02 DOI: 10.1080/01468030.2021.2014606

H. Zhang, J. Ma, Junyi Zhang

{"title":"Flexible Multi-band Dual-chirped Microwave Waveforms Generation with Double Bandwidth","authors":"H. Zhang, J. Ma, Junyi Zhang","doi":"10.1080/01468030.2021.2014606","DOIUrl":"https://doi.org/10.1080/01468030.2021.2014606","url":null,"abstract":"ABSTRACT A multi-band dual-chirp linearly frequency modulated (LFM) signal-generation scheme with doubled chirp bandwidth and flexible center frequency and band numbers is proposed. In the scheme, the polarization multiplexed multi-tone optical signals with chirped phases are generated via a dual-polarization dual-parallel Mach–Zehnder modulator (DPMZM) cascaded with a polarization modulator. The two polarization multiplexed lightwaves are recombined as two linearly polarized beams by a polarization beam splitter and are detected by a balanced photodiode with a photocurrent that includes the multi-band dual-chirp LFM signal with doubled bandwidth and multiplied central frequencies but does not have a dc component. Since the orders and numbers of the generated optical sidebands are changed by adjusting the bias voltages of a DPMZM, we can obtain the multi-band dual-chirp LFM signal flexibly. Based on simulation, four-band, six-band and two seven-band dual-chirp LFM signals are generated with four groups of bias voltage configurations. For each case, every dual-chirp LFM signal of the generated multi-band dual-chirp LFM signal has a 5-GHz bandwidth and a time-bandwidth product of 512. The auto-correlations and ambiguity function of the generated LFM signal show good performance of pulse compression and range-Doppler resolution.","PeriodicalId":50449,"journal":{"name":"Fiber and Integrated Optics","volume":"9 1","pages":"276 - 291"},"PeriodicalIF":1.7,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73773051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dark Pulse Mode-locked Laser based on Aluminum Zinc Oxide coated D-shape fiber as Saturable Absorber 基于锌铝包覆d型光纤作为可饱和吸收剂的暗脉冲锁模激光器

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2021-11-01 DOI: 10.1080/01468030.2021.1995084

B. Nizamani, A. Jafry, G. Fizza, F. A. Memon, S. Salam, M. Najm, M. A. Abdul Khudus, E. Hanafi, R. Apsari, S. Harun

引用次数: 0

Performance Analysis Of Optical Modulation Techniques Based On Reduction Of Second Order Harmonics And Chromatic Dispersion on OFDM Signals 基于降低二阶谐波和色散的OFDM信号光调制技术性能分析

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2021-10-12 DOI: 10.1080/01468030.2021.1945171

Apoorv Kulkarni, Shrey Kothavade, Dhananjay Patel, Rajat Jain

{"title":"Performance Analysis Of Optical Modulation Techniques Based On Reduction Of Second Order Harmonics And Chromatic Dispersion on OFDM Signals","authors":"Apoorv Kulkarni, Shrey Kothavade, Dhananjay Patel, Rajat Jain","doi":"10.1080/01468030.2021.1945171","DOIUrl":"https://doi.org/10.1080/01468030.2021.1945171","url":null,"abstract":"ABSTRACT This work explains the theoretical and mathematical investigations of the transmission performance of an optical Single Sideband (SSB) modulation technique generated by a Mach Zehnder Modulator (MZM) with a 90° and 120° phase shift using hybrid coupler (Modified SSB) in addition to the Vestigial Sideband technique (VSB). The problem addressed in this paper is the effect of non-linearity of the transmitter system and the chromatic dispersion in single mode fiber due to the presence of second- and higher order harmonics. The non-linearity of the transmitter generates second and higher order harmonics, which affects the system performance leading to reduction in the data rate and increased distortion. The transmission performance of SSB, M-SSB and VSB is evaluated based on the extinction ratio of the MZM, different transmission lengths of the fiber, optical signal modulation index and the receiver sensitivity. A mathematical model has been developed for all the systems representing the modulation techniques till the second order. The baseband modulation consists of an RF signal of frequency 18 GHz and an Orthogonal Frequency Division Multiplexing (OFDM) signal with 4-QAM modulation technique converted to optical signal, using the MZM and transmitted over a SMF of distance of 75 Km. Our results show that the M-SSB technique proves to be more immune toward transmitter nonlinearity and chromatic dispersion as compared to its counterparts. In addition to this, it improves the receiver sensitivity by 6.56 dBm. The results generated by software simulation are in tandem with the mathematical model.","PeriodicalId":50449,"journal":{"name":"Fiber and Integrated Optics","volume":"32 1","pages":"304 - 321"},"PeriodicalIF":1.7,"publicationDate":"2021-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80635720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sodium Carbonate for Generating Q-Switched Pulses in 1550 nm Region 碳酸钠在1550nm区域产生调q脉冲

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2021-06-22 DOI: 10.1080/01468030.2021.1942334

M. Najm, B. Nizamani, Pei Zhang, S. Salam, H. Arof, Norrima Mokhtar, A. Al-Hiti, M. Yasin, S. Harun

引用次数: 2

From 1G to 5G 从1G到5G

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2021-05-04 DOI: 10.1080/01468030.2021.1919358

H. Hodara, E. Skaljo

{"title":"From 1G to 5G","authors":"H. Hodara, E. Skaljo","doi":"10.1080/01468030.2021.1919358","DOIUrl":"https://doi.org/10.1080/01468030.2021.1919358","url":null,"abstract":"ABSTRACT Wireless Mobile Communications have undergone major “generational” changes since MacDonald of Bell Telephone Laboratories introduced the concept of cellular communications in 1979. Over the last four decades, the technology has evolved from the first generation, 1 G, followed by 2 G, 3 G, and 4 G, to reach today’s threshold of the fifth generation, 5 G. In order to grasp the magnitude of the impact 5 G is having on our society (5 G internet is expected cover up to 65% of the world’s population by the end of 2025!), it is essential to understand the historical development of the previous generations. This review describes and explains the technology from 1 G to 4 G, culminating with the current state-of-the-art of 5 G, and its expected performance over the next ten years. We cover the major technical features of 5 G that differentiate them from the previous generations, in particular,the introduction of the MM-Wave spectrum combined with MIMO, Multiple Input-Multiple Output antenna arrays. We single out these two features as they provide orders of magnitude increases in channel capacity (20 Gb/s Downlink data transfer rates with reduced latency of 1 ms) and internet connectivity on the order of billions. We conclude with related 5 G marketing data, some of it related to the smart phone, a marvel of engineering and a credit to human creativity. 5 G is committed to connecting billions of devices with billions of people, both wirelessly and via the internet. Such a technical advance is a game-changer!","PeriodicalId":50449,"journal":{"name":"Fiber and Integrated Optics","volume":"69 1","pages":"85 - 183"},"PeriodicalIF":1.7,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90565059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Polarization Beam Splitter Based on the Gold Wire-Filled Dual-Core Photonic Crystal Fiber at the Communication Wavelengths 通信波长上基于金线填充双芯光子晶体光纤的偏振分束器

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2021-01-02 DOI: 10.1080/01468030.2021.1882621

Yongxia Zhang, Yuwei Qu, J. Yuan, Haiyun Wang, Xian Zhou, Jiahao Huo, B. Yan, Qiang Wu, Kuiru Wang, Keping Long, Chongxiu Yu

引用次数: 4

Plasmonics: A Necessity in the Field of Sensing-A Review (Invited) 等离子体:传感领域的必需品——综述(特邀)

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2021-01-02 DOI: 10.1080/01468030.2021.1902590

M. A. Butt, S. Khonina, N. L. Kazanskiy

引用次数: 37

Toward the Multi-Gigabit Ethernet for the Automotive Industry 面向汽车工业的千兆以太网

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2021-01-02 DOI: 10.1080/01468030.2021.1916695

A. Rodríguez-Pérez, R. Pérez de Aranda, E. Prefasi, S. Dumont, J. Rosado, I. Enrique, P. Pinzón, D. Ortiz

引用次数: 3

The Temperature Effect on U and Coil Shaped POF Sensors to Detect Refractive Index Change 温度对U形和线圈形POF传感器折射率变化的影响

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2021-01-02 DOI: 10.1080/01468030.2021.1904059

T. Tabaru

引用次数: 4

All Polarization-maintaining Passively Mode-locked Ytterbium-doped Fiber Lasers, Behavior under Two Different Cavity Configurations 全保偏被动锁模掺镱光纤激光器，两种不同腔体结构下的性能

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2020-11-01 DOI: 10.1080/01468030.2020.1846097

C. Cuadrado-Laborde, A. Carrascosa, A. Díez, J. Cruz, M. V. Andrés

{"title":"All Polarization-maintaining Passively Mode-locked Ytterbium-doped Fiber Lasers, Behavior under Two Different Cavity Configurations","authors":"C. Cuadrado-Laborde, A. Carrascosa, A. Díez, J. Cruz, M. V. Andrés","doi":"10.1080/01468030.2020.1846097","DOIUrl":"https://doi.org/10.1080/01468030.2020.1846097","url":null,"abstract":"ABSTRACT In this work, we review our recent investigations on the behavior of a polarization-maintaining passively mode-locked ytterbium-doped laser in two different cavity configurations, namely: fiber-ring (FR) and Fabry-Perot (FP). Opposed to standard configurations that rely on the use of strong filtering within the cavity by including an ad hoc component with this purpose, here the filtering action is solely performed by the spectral overlapping of the different components within the fiber lasers. We found that the lack of a specific filter within the cavity does not deteriorate the performance as compared with previous works. We also report the changes in the output light pulses when the net dispersion of the cavity was varied. Additionally, different lengths of an ad hoc anomalous polarization-maintaining (PM) photonic crystal fiber (PCF) were used as intracavity dispersion compensator, to shift the operation of the laser from net-normal to the net-anomalous regime. The shortest output light pulses [6 ps (FR) and 8 ps (FP)] were obtained when the net-cavity dispersion approached zero. Since the obtained light pulses were far to be transform-limited, we also discuss the possibility of out-of-cavity recompression by using the same PM-PCF mentioned above. After recompression, pulse widths of 3 ps were obtained, limited by the available length of PM PCF.","PeriodicalId":50449,"journal":{"name":"Fiber and Integrated Optics","volume":"1 1","pages":"240 - 252"},"PeriodicalIF":1.7,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85548047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0