Jing Wang , Lin Zhu , Ben Niu , Yan Zuo , De Zhou , Rui Zhu , Hongsong Xu , Hao Wang , Wenjie Zhu , Xiong Jiang , Qifeng Liu , Dechuan Zhang
{"title":"用于远距离 FMCW 激光测距系统的增强型三通道双偏振硅光子平衡接收器","authors":"Jing Wang , Lin Zhu , Ben Niu , Yan Zuo , De Zhou , Rui Zhu , Hongsong Xu , Hao Wang , Wenjie Zhu , Xiong Jiang , Qifeng Liu , Dechuan Zhang","doi":"10.1016/j.optlastec.2024.112131","DOIUrl":null,"url":null,"abstract":"<div><div>We present an improved three-channel dual-polarization silicon photonic balanced receiver specifically designed for frequency-modulated continuous-wave (FMCW) ranging systems. By leveraging silicon photonics technology, we have integrated previously discrete functional devices onto a single chip, significantly reducing system volume and enhancing integration. To address the limitations of existing multi-channel balanced receivers, we performed a systematic analysis and optimization of the receiver’s components. Our optimizations included enhancing photodetector responsivity, minimizing dark current, refining layout and wire bonding, optimizing packaging coupling processes, and improving the bandwidth and noise characteristics of the receiving link. As a result, we developed a germanium-silicon photodetector with a high responsivity of ∼ 1.09 A/W, minimal dark current of ∼ 4 nA, and bandwidth of 28 GHz. Furthermore, we realized a 3-channel dual-polarization balanced receiver chip using 130 nm CMOS technology, achieving low loss and crosstalk through layout optimization and effective packaging. The receiver was validated through an FMCW ranging system setup, demonstrating a ranging capacity exceeding 180 m across all three channels, outperforming previous works. Our receiver satisfies the potential demands of long-range and high-resolution FMCW ranging, particularly relevant for automotive LiDAR applications.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"182 ","pages":"Article 112131"},"PeriodicalIF":4.6000,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced three-channel dual-polarization silicon photonic balanced receiver for long-range FMCW laser ranging systems\",\"authors\":\"Jing Wang , Lin Zhu , Ben Niu , Yan Zuo , De Zhou , Rui Zhu , Hongsong Xu , Hao Wang , Wenjie Zhu , Xiong Jiang , Qifeng Liu , Dechuan Zhang\",\"doi\":\"10.1016/j.optlastec.2024.112131\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>We present an improved three-channel dual-polarization silicon photonic balanced receiver specifically designed for frequency-modulated continuous-wave (FMCW) ranging systems. By leveraging silicon photonics technology, we have integrated previously discrete functional devices onto a single chip, significantly reducing system volume and enhancing integration. To address the limitations of existing multi-channel balanced receivers, we performed a systematic analysis and optimization of the receiver’s components. Our optimizations included enhancing photodetector responsivity, minimizing dark current, refining layout and wire bonding, optimizing packaging coupling processes, and improving the bandwidth and noise characteristics of the receiving link. As a result, we developed a germanium-silicon photodetector with a high responsivity of ∼ 1.09 A/W, minimal dark current of ∼ 4 nA, and bandwidth of 28 GHz. Furthermore, we realized a 3-channel dual-polarization balanced receiver chip using 130 nm CMOS technology, achieving low loss and crosstalk through layout optimization and effective packaging. The receiver was validated through an FMCW ranging system setup, demonstrating a ranging capacity exceeding 180 m across all three channels, outperforming previous works. Our receiver satisfies the potential demands of long-range and high-resolution FMCW ranging, particularly relevant for automotive LiDAR applications.</div></div>\",\"PeriodicalId\":19511,\"journal\":{\"name\":\"Optics and Laser Technology\",\"volume\":\"182 \",\"pages\":\"Article 112131\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2024-11-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optics and Laser Technology\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0030399224015895\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics and Laser Technology","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030399224015895","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}
Enhanced three-channel dual-polarization silicon photonic balanced receiver for long-range FMCW laser ranging systems
We present an improved three-channel dual-polarization silicon photonic balanced receiver specifically designed for frequency-modulated continuous-wave (FMCW) ranging systems. By leveraging silicon photonics technology, we have integrated previously discrete functional devices onto a single chip, significantly reducing system volume and enhancing integration. To address the limitations of existing multi-channel balanced receivers, we performed a systematic analysis and optimization of the receiver’s components. Our optimizations included enhancing photodetector responsivity, minimizing dark current, refining layout and wire bonding, optimizing packaging coupling processes, and improving the bandwidth and noise characteristics of the receiving link. As a result, we developed a germanium-silicon photodetector with a high responsivity of ∼ 1.09 A/W, minimal dark current of ∼ 4 nA, and bandwidth of 28 GHz. Furthermore, we realized a 3-channel dual-polarization balanced receiver chip using 130 nm CMOS technology, achieving low loss and crosstalk through layout optimization and effective packaging. The receiver was validated through an FMCW ranging system setup, demonstrating a ranging capacity exceeding 180 m across all three channels, outperforming previous works. Our receiver satisfies the potential demands of long-range and high-resolution FMCW ranging, particularly relevant for automotive LiDAR applications.
期刊介绍:
Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication.
The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas:
•development in all types of lasers
•developments in optoelectronic devices and photonics
•developments in new photonics and optical concepts
•developments in conventional optics, optical instruments and components
•techniques of optical metrology, including interferometry and optical fibre sensors
•LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow
•applications of lasers to materials processing, optical NDT display (including holography) and optical communication
•research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume)
•developments in optical computing and optical information processing
•developments in new optical materials
•developments in new optical characterization methods and techniques
•developments in quantum optics
•developments in light assisted micro and nanofabrication methods and techniques
•developments in nanophotonics and biophotonics
•developments in imaging processing and systems