{"title":"Universal millimeter-wave noise source based on a multi-mode chaotic laser","authors":"","doi":"10.1016/j.optlastec.2024.111818","DOIUrl":null,"url":null,"abstract":"<div><p>We propose and experimentally demonstrate a universal millimeter-wave noise source based on an optically injected multi-mode chaotic laser. The wideband multi-mode chaotic lights are sliced, amplified and then converted into continuous-wave noise through a photodetector. In our approach, the center frequency and the excess noise ratio of the generated noise signal can be easily adjusted by controlling the sliced spectral numbers and intensities, respectively. Moreover, pulsed noise can also be obtained by introducing an amplitude modulation as a chopper. In our proof-of-concept experiments, we successfully generate 140–220 GHz and 220–390 GHz broadband noise signals with a tunable excess noise ratio up to 52.42 dB. We also validate the tunability of the operation frequency though generating three narrow-band noise signals with center frequencies at 140 GHz, 252 GHz, and 364 GHz, respectively. Furthermore, the generation of pulse noise with durations of 500 ns and 0.5 ns per period are experimentally demonstrated. These results confirm that our proposed universal noise source is a promising candidate for multiple application scenarios.</p></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2024-09-20","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/S0030399224012763","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}
引用次数: 0
Abstract
We propose and experimentally demonstrate a universal millimeter-wave noise source based on an optically injected multi-mode chaotic laser. The wideband multi-mode chaotic lights are sliced, amplified and then converted into continuous-wave noise through a photodetector. In our approach, the center frequency and the excess noise ratio of the generated noise signal can be easily adjusted by controlling the sliced spectral numbers and intensities, respectively. Moreover, pulsed noise can also be obtained by introducing an amplitude modulation as a chopper. In our proof-of-concept experiments, we successfully generate 140–220 GHz and 220–390 GHz broadband noise signals with a tunable excess noise ratio up to 52.42 dB. We also validate the tunability of the operation frequency though generating three narrow-band noise signals with center frequencies at 140 GHz, 252 GHz, and 364 GHz, respectively. Furthermore, the generation of pulse noise with durations of 500 ns and 0.5 ns per period are experimentally demonstrated. These results confirm that our proposed universal noise source is a promising candidate for multiple application scenarios.
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