Fibre laser oscillator and fibre laser processing apparatus

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	Fibre laser oscillator and fibre laser processing apparatus
其他题名	Fibre laser oscillator and fibre laser processing apparatus
	MATSUDA, YASUSHI; SHIMADA, HIDENORI
	2007-10-03
专利权人	MIYACHI CORPORATION
公开日期	2007-10-03
授权国家	欧洲专利局
专利类型	发明申请
摘要	An end cap (24) is formed as a substantially cylindrical body having substantially the same diameter as an external diameter of a retaining unit (60) of an oscillation fibre (22); a base end surface (24a) is integrally fusion-welded or fusion-bonded to one end surface (22a) of the oscillation fibre (22); and a leading end surface (24b) is obliquely cut relative to the light axis. A returning oscillating beam reflected by an optical resonator mirror (34) is converged and made incident on a core end surface (60a) of the oscillation fibre (22) located at a focus position of an optical lens (28). However, since the core end surface (60a) is integrally bonded with the end cap (24) and is not exposed to the atmosphere, the core end surface is not burned or deteriorated (60a) by the light energy of the oscillating beam.
其他摘要	端盖（24）形成为基本上圆柱形的主体，其具有与振荡纤维（22）的保持单元（60）的外径基本相同的直径;基端面（24a）整体熔焊或熔接在振荡纤维（22）的一个端面（22a）上;前端面（24b）相对于光轴倾斜切割。由光学谐振腔镜（34）反射的返回振荡光束会聚并入射到位于光学透镜（28）的焦点位置的振荡光纤（22）的芯端面（60a）上。然而，由于芯端面（60a）与端盖（24）整体结合并且不暴露在大气中，因此芯端面不会被振动梁的光能燃烧或劣化（60a）。
主权项	A fiber laser oscillator comprising: an oscillation optical fiber that includes a core containing a light-emitting element; an optically transparent end cap bonded to an end surface of the oscillation optical fiber; a pair of optical oscillator mirrors optically opposed to each other through the oscillation optical fiber and the optical lens; and a fiber core exciting unit that excites the core of the oscillation optical fiber.
申请日期	2007-03-22
专利号	EP1840608A1
专利状态	失效
申请号	EP2007251231
公开（公告）号	EP1840608A1
IPC 分类号	G02B6/255
专利代理人	-
代理机构	MAKOVSKI, PRISCILLA MARY
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/53920
专题	半导体激光器专利数据库
作者单位	MIYACHI CORPORATION
推荐引用方式 GB/T 7714	MATSUDA, YASUSHI,SHIMADA, HIDENORI. Fibre laser oscillator and fibre laser processing apparatus. EP1840608A1[P]. 2007-10-03.