{"title":"光纤相敏光放大器及其应用","authors":"P. Andrekson, M. Karlsson","doi":"10.1364/aop.382548","DOIUrl":null,"url":null,"abstract":"Optical parametric amplifiers rely on second-order susceptibility (three-wave mixing) or third-order susceptibility (four-wave mixing) in a nonlinear process where the energy of incoming photons is not changed (elastic scattering). In the latter case, two pump photons are converted to a signal and to an idler photon. Under certain conditions, related to the phase evolution of the waves involved, this conversion can be very efficient, resulting in large amplification of an input signal. As the nonlinear process can be very fast, all-optical applications aside from pure amplification are also possible. If the amplifier is implemented in an optical input-phase-sensitive manner, it is possible to amplify a signal wave without excess noise, i.e., with a noise figure of 0 dB. In this paper, we will provide the fundamental concepts and theory of such amplifiers, with a focus on their implementation in highly nonlinear optical fibers relying on four-wave mixing. We will discuss the distinctions between phase-insensitive and phase-sensitive operation and include several experimental results to illustrate their capability. Different applications of parametric amplifiers are also discussed, including their use in optical communication links.","PeriodicalId":48960,"journal":{"name":"Advances in Optics and Photonics","volume":null,"pages":null},"PeriodicalIF":25.2000,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"32","resultStr":"{\"title\":\"Fiber-based phase-sensitive optical amplifiers and their applications\",\"authors\":\"P. Andrekson, M. Karlsson\",\"doi\":\"10.1364/aop.382548\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Optical parametric amplifiers rely on second-order susceptibility (three-wave mixing) or third-order susceptibility (four-wave mixing) in a nonlinear process where the energy of incoming photons is not changed (elastic scattering). In the latter case, two pump photons are converted to a signal and to an idler photon. Under certain conditions, related to the phase evolution of the waves involved, this conversion can be very efficient, resulting in large amplification of an input signal. As the nonlinear process can be very fast, all-optical applications aside from pure amplification are also possible. If the amplifier is implemented in an optical input-phase-sensitive manner, it is possible to amplify a signal wave without excess noise, i.e., with a noise figure of 0 dB. In this paper, we will provide the fundamental concepts and theory of such amplifiers, with a focus on their implementation in highly nonlinear optical fibers relying on four-wave mixing. We will discuss the distinctions between phase-insensitive and phase-sensitive operation and include several experimental results to illustrate their capability. Different applications of parametric amplifiers are also discussed, including their use in optical communication links.\",\"PeriodicalId\":48960,\"journal\":{\"name\":\"Advances in Optics and Photonics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":25.2000,\"publicationDate\":\"2020-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"32\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advances in Optics and Photonics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1364/aop.382548\",\"RegionNum\":1,\"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":"Advances in Optics and Photonics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/aop.382548","RegionNum":1,"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}
Fiber-based phase-sensitive optical amplifiers and their applications
Optical parametric amplifiers rely on second-order susceptibility (three-wave mixing) or third-order susceptibility (four-wave mixing) in a nonlinear process where the energy of incoming photons is not changed (elastic scattering). In the latter case, two pump photons are converted to a signal and to an idler photon. Under certain conditions, related to the phase evolution of the waves involved, this conversion can be very efficient, resulting in large amplification of an input signal. As the nonlinear process can be very fast, all-optical applications aside from pure amplification are also possible. If the amplifier is implemented in an optical input-phase-sensitive manner, it is possible to amplify a signal wave without excess noise, i.e., with a noise figure of 0 dB. In this paper, we will provide the fundamental concepts and theory of such amplifiers, with a focus on their implementation in highly nonlinear optical fibers relying on four-wave mixing. We will discuss the distinctions between phase-insensitive and phase-sensitive operation and include several experimental results to illustrate their capability. Different applications of parametric amplifiers are also discussed, including their use in optical communication links.
期刊介绍:
Advances in Optics and Photonics (AOP) is an all-electronic journal that publishes comprehensive review articles and multimedia tutorials. It is suitable for students, researchers, faculty, business professionals, and engineers interested in optics and photonics. The content of the journal covers advancements in these fields, ranging from fundamental science to engineering applications.
The journal aims to capture the most significant developments in optics and photonics. It achieves this through long review articles and comprehensive tutorials written by prominent and respected authors who are at the forefront of their fields.
The journal goes beyond traditional text-based articles by enhancing the content with multimedia elements, such as animation and video. This multimedia approach helps to enhance the understanding and visualization of complex concepts.
AOP offers dedicated article preparation and peer-review support to assist authors throughout the publication process. This support ensures that the articles meet the journal's standards and are well-received by readers.
Additionally, AOP welcomes comments on published review articles, encouraging further discussions and insights from the scientific community.
In summary, Advances in Optics and Photonics is a comprehensive journal that provides authoritative and accessible content on advancements in optics and photonics. With its diverse range of articles, multimedia enhancements, and dedicated support, AOP serves as a valuable resource for professionals and researchers in these fields.