{"title":"光纤分布式天线无线电系统的超窄线宽高稳定激光器","authors":"Mamoun Wahbeh, R. Kashyap","doi":"10.1109/ICUWB.2015.7324522","DOIUrl":null,"url":null,"abstract":"Active distributed antenna systems and fiber-optic cellular repeaters, feeding wireless LAN and cellular networks that support smart applications, require ultra-narrow linewidth laser diodes with precision wavelength control and high stability. A 2.2-kHz linewidth single-mode hybrid laser is presented. A high side-mode suppression ratio of 45 dB is reported. An excellent long-term wavelength stability is measured under free running conditions to be within ±0.2 pm for unpackaged device. This stability has been estimated to be locked to within ±11 Hz if the device is in a hermetically sealed package. Precise wavelength tuning with a wavelength- current coefficient of 0.017 pm/mA (~2.18 MHz/mA) is reported for the first time.","PeriodicalId":339208,"journal":{"name":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ultra-Narrow Linewidth and Highly Stable Laser for Radio over Fiber Distributed Antenna Systems\",\"authors\":\"Mamoun Wahbeh, R. Kashyap\",\"doi\":\"10.1109/ICUWB.2015.7324522\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Active distributed antenna systems and fiber-optic cellular repeaters, feeding wireless LAN and cellular networks that support smart applications, require ultra-narrow linewidth laser diodes with precision wavelength control and high stability. A 2.2-kHz linewidth single-mode hybrid laser is presented. A high side-mode suppression ratio of 45 dB is reported. An excellent long-term wavelength stability is measured under free running conditions to be within ±0.2 pm for unpackaged device. This stability has been estimated to be locked to within ±11 Hz if the device is in a hermetically sealed package. Precise wavelength tuning with a wavelength- current coefficient of 0.017 pm/mA (~2.18 MHz/mA) is reported for the first time.\",\"PeriodicalId\":339208,\"journal\":{\"name\":\"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)\",\"volume\":\"82 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-11-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICUWB.2015.7324522\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE International Conference on Ubiquitous Wireless Broadband (ICUWB)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICUWB.2015.7324522","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ultra-Narrow Linewidth and Highly Stable Laser for Radio over Fiber Distributed Antenna Systems
Active distributed antenna systems and fiber-optic cellular repeaters, feeding wireless LAN and cellular networks that support smart applications, require ultra-narrow linewidth laser diodes with precision wavelength control and high stability. A 2.2-kHz linewidth single-mode hybrid laser is presented. A high side-mode suppression ratio of 45 dB is reported. An excellent long-term wavelength stability is measured under free running conditions to be within ±0.2 pm for unpackaged device. This stability has been estimated to be locked to within ±11 Hz if the device is in a hermetically sealed package. Precise wavelength tuning with a wavelength- current coefficient of 0.017 pm/mA (~2.18 MHz/mA) is reported for the first time.
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