Single-polarization high power fiber lasers and amplifiers

OPT OpenIR > 半导体激光器专利数据库

	Single-polarization high power fiber lasers and amplifiers
其他题名	Single-polarization high power fiber lasers and amplifiers
	FERMANN, MARTIN
	2002-11-21
专利权人	IMRA AMERICA, INC.
公开日期	2002-11-21
授权国家	美国
专利类型	发明申请
摘要	A novel polarization maintaining optical fiber, which can be used as a high-power polarization maintaining fiber laser or amplifier, is described. Insensitivity of the polarization state to external fiber bending and temperature changes is accomplished by minimizing polarization mode-coupling via reducing stresses inside the fiber core via increasing the fiber diameter. Alternatively, polarization mode-coupling can be minimized by an optimization of the fiber coating to minimize stresses at the interface between the fiber and the coating. As a result insensitivity to polarization mode-coupling is obtained at greatly reduced values of birefringence compared to small-diameter fibers. The fiber is of significant use in any application where polarization stability is important, and will be useful in telecommunications applications in particular for reducing polarization mode dispersion. An implementation in a parabolic pulse-producing fiber laser is also described as one specific high power example.
其他摘要	本发明描述了一种新型偏振保持光纤，它可用作高功率偏振保持光纤激光器或放大器。偏振态对外部光纤弯曲和温度变化的不敏感性是通过增加光纤直径减小光纤芯内应力来最小化偏振模耦合来实现的。或者，可以通过优化纤维涂层来最小化偏振模式耦合，以使纤维和涂层之间的界面处的应力最小化。结果，与小直径光纤相比，在双折射值大大降低的情况下获得对偏振模耦合的不敏感性。该光纤在极化稳定性很重要的任何应用中都有重要用途，并且在电信应用中特别有用，特别是用于减少偏振模色散。抛物线脉冲产生光纤激光器中的实现也被描述为一个特定的高功率示例。
主权项	A polarization maintaining fiber, comprising; a fiber core; a first cladding surrounding said core; a coating surrounding said first cladding; wherein said first cladding has a cross sectional shape in the form of a distorted hexagon or a polygon with (2n -1) sides, where n>2.
申请日期	2001-03-16
专利号	US20020172486A1
专利状态	授权
申请号	US09/809248
公开（公告）号	US20020172486A1
IPC 分类号	G02B6/02 \| G02B6/024 \| G02B6/036 \| G02B6/44 \| H01S3/06 \| H01S3/067 \| H01S3/098 \| H01S3/10 \| G02B6/22 \| G02B6/27
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/52388
专题	半导体激光器专利数据库
作者单位	IMRA AMERICA, INC.
推荐引用方式 GB/T 7714	FERMANN, MARTIN. Single-polarization high power fiber lasers and amplifiers. US20020172486A1[P]. 2002-11-21.