网站综合信息 www.yanfeng.org
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- 域名年龄:21年8个月21天 注册日期:2004年06月01日 到期时间:
邮箱:yanfeng 电话:+86.2169914051
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域名注册Whois信息
yanfeng.org
域名年龄: 21年8个月21天注册时间: 2004-06-01
注 册 商: Name.com, LLC (R1288-LROR)
注册邮箱: yanfeng
联系电话: +86.2169914051
获取时间: 2015年04月06日 04:31:11
Domain Name:YANFENG.ORG
Domain ID: D104482236-LROR
Creation Date: 2004-06-01T07:57:43Z
Updated Date: 2014-05-08T05:28:43Z
Registry Expiry Date: 2016-06-01T07:57:43Z
Sponsoring Registrar:Name.com, LLC (R1288-LROR)
Sponsoring Registrar IANA ID: 625
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Domain Status: clientTransferProhibited -- http://www.icann.org/epp#clientTransferProhibited
Registrant ID:0861uj6a691fp
Registrant Name:Yan Feng
Registrant Organization:Yan Feng
Registrant Street: Qinghe Road 390
Registrant City:Jiading
Registrant State/Province:Shanghai
Registrant Postal Code:201800
Registrant Country:CN
Registrant Phone:+86.2169914051
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Registrant Email:yanfeng
Admin ID:0861uj6a691fe
Admin Name:Yan Feng
Admin Organization:Yan Feng
Admin Street: Qinghe Road 390
Admin City:Jiading
Admin State/Province:Shanghai
Admin Postal Code:201800
Admin Country:CN
Admin Phone:+86.2169914051
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Admin Email:yanfeng
Tech ID:0861uj6a691g0
Tech Name:Yan Feng
Tech Organization:Yan Feng
Tech Street: Qinghe Road 390
Tech City:Jiading
Tech State/Province:Shanghai
Tech Postal Code:201800
Tech Country:CN
Tech Phone:+86.2169914051
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抓取时间:2015年01月17日 04:40:01
网址:http://www.yanfeng.org/
标题:Yan Feng
关键字:
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网址:http://www.yanfeng.org/
标题:Yan Feng
关键字:
描述:
主体:
Search: Yan Feng A laser physicist and father of two girls. Work Archive Feed Chinese Updates December 31st, 2012 § 0 It is the end of year again. I feel obligated to update this blog after a long hiatus. I have been busy as most of the men on the Chinese land do. I don’t have much time to blog, but I do spend some time on setting up a simple website for the research group and updating the new publications. The website has a nice domain name “laser.im“. I wish to continue the guide star laser work. Therefore, we have researched ways to generate linearly polarized Yb doped fiber laser, and are now able to build 100 W class linearly polarized 1120 nm Yb-doped fiber laser with cross-axis-matched FBG pairs written in polarization maintaining fiber. We improved the SBS suppression technique further, and achieved a 44 W single frequency Raman fiber amplifier at 1178 nm with an optical efficiency of 52 %. Up to 25 W at 589 nm has been demonstrated with a home-built frequency doubling cavity, which is not yet optimized. I feel mode locking of fiber laser fascinating, therefore, we have studied mode locking of Raman fiber laser with graphene absorber. The idea is simple: To achieve wavelength versatile mode locked fiber laser by combining the shared advantage of Raman gain and graphene saturable absorption, both of which is broadband. During the path, we have demonstrated passively Q-switched Yb-doped fiber laser by graphene, and the use of single-multi-single mode fiber structure as bandpass filter for building all fiber tunable dissipative soliton fiber laser. The SBS suppression technique was applied to single frequency Yb doped fiber laser, and achieved 170 W linearly polarized laser with a 10 micron core PM fiber by 7 time increase of SBS threshold. We also find Yb doped fiber laser at the wing of gain spectrum interesting. One example is a demonstration of high power single frequency 1014.8 nm fiber amplifier working at room temperature for mercury cooling after frequency quadruplication. These works are not yet published. The research works are on-going. Future update will be posted on the new group website. « Older Entries About A laser Physicist at SIOM, can be reached by yanfeng at gmail.com. Recent Posts Updates The Wendelstein laser guide star Hannover visit join SIOM not receiving emails @eso.org © Yan Feng, powered by WordPress
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