K. Hosaka, H. Inaba, S. Okubo, D. Akamatsu, M. Yasuda, A. Onae, F. Hong
{"title":"基于光钟线宽转移法的超稳定激光系统评价","authors":"K. Hosaka, H. Inaba, S. Okubo, D. Akamatsu, M. Yasuda, A. Onae, F. Hong","doi":"10.1109/EFTF.2014.7331461","DOIUrl":null,"url":null,"abstract":"We have evaluated an ultra-stable laser system, which is based on the linewidth transfer method. In this system, a Nd:YAG laser at 1064 nm stabilised to a high finesse Fabry- Pérot etalon is employed as a master laser. Beat signals between the high-speed controllable optical frequency comb locked to the master laser and another ultra-stable laser operated at 1.5 μm are observed to investigate the frequency stability. The frequency stability measured by the fractional Allan deviation is about 2 × 10-15 at 1 s averaging time, which almost coincides with the estimated thermal noise limit on the optical cavity. Furthermore, using the system, the 1S0-3P0 transitions in ytterbium and strontium atoms are observed. We have demonstrated that linewidth transfer technique based on the optical frequency comb combining with the narrow linewidth laser serves as a useful ultra-stable local oscillator for optical clocks.","PeriodicalId":129873,"journal":{"name":"2014 European Frequency and Time Forum (EFTF)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluation of an ultra-stable laser system based on a linewidth transfer method for optical clocks\",\"authors\":\"K. Hosaka, H. Inaba, S. Okubo, D. Akamatsu, M. Yasuda, A. Onae, F. Hong\",\"doi\":\"10.1109/EFTF.2014.7331461\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We have evaluated an ultra-stable laser system, which is based on the linewidth transfer method. In this system, a Nd:YAG laser at 1064 nm stabilised to a high finesse Fabry- Pérot etalon is employed as a master laser. Beat signals between the high-speed controllable optical frequency comb locked to the master laser and another ultra-stable laser operated at 1.5 μm are observed to investigate the frequency stability. The frequency stability measured by the fractional Allan deviation is about 2 × 10-15 at 1 s averaging time, which almost coincides with the estimated thermal noise limit on the optical cavity. Furthermore, using the system, the 1S0-3P0 transitions in ytterbium and strontium atoms are observed. We have demonstrated that linewidth transfer technique based on the optical frequency comb combining with the narrow linewidth laser serves as a useful ultra-stable local oscillator for optical clocks.\",\"PeriodicalId\":129873,\"journal\":{\"name\":\"2014 European Frequency and Time Forum (EFTF)\",\"volume\":\"53 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-06-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 European Frequency and Time Forum (EFTF)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EFTF.2014.7331461\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 European Frequency and Time Forum (EFTF)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EFTF.2014.7331461","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Evaluation of an ultra-stable laser system based on a linewidth transfer method for optical clocks
We have evaluated an ultra-stable laser system, which is based on the linewidth transfer method. In this system, a Nd:YAG laser at 1064 nm stabilised to a high finesse Fabry- Pérot etalon is employed as a master laser. Beat signals between the high-speed controllable optical frequency comb locked to the master laser and another ultra-stable laser operated at 1.5 μm are observed to investigate the frequency stability. The frequency stability measured by the fractional Allan deviation is about 2 × 10-15 at 1 s averaging time, which almost coincides with the estimated thermal noise limit on the optical cavity. Furthermore, using the system, the 1S0-3P0 transitions in ytterbium and strontium atoms are observed. We have demonstrated that linewidth transfer technique based on the optical frequency comb combining with the narrow linewidth laser serves as a useful ultra-stable local oscillator for optical clocks.