Optical demultiplexer, optical multi-/demultiplexer, and optical device

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	Optical demultiplexer, optical multi-/demultiplexer, and optical device
其他题名	Optical demultiplexer, optical multi-/demultiplexer, and optical device
	HAMADA, HIDENOBU
	2004-06-09
专利权人	PANASONIC CORPORATION
公开日期	2004-06-09
授权国家	欧洲专利局
专利类型	发明申请
摘要	The present invention provides an optical demultiplexer and an optical multi-/demultiplexer at low cost without reducing performance capabilities. An optical demultiplexer (100a) includes: a multi-mode waveguide having such an optical path length as to cause a difference between first and second wavelengths with respect to a phase difference between zero- and first-order modes to become an integral multiple of π; an input waveguide (105a) optically connected to the input side of the multi-mode waveguide (102a) such that the optical axis thereof is offset from the center line of the multi-mode waveguide (102a) ; and two output waveguides (103a and 104a) optically coupled to the multi-mode waveguide (102a) at different positions of the output side of the multi-mode waveguide (102a). The two output waveguides (103a and 104a) are located in such a manner as to maximize the extinction ratio.
其他摘要	本发明以低成本提供光学解复用器和光学多路复用器/多路分离器，而不降低性能。光学解复用器（100a）包括：多模波导，其具有这样的光程长度，使得相对于零级和一级模式之间的相位差的第一和第二波长之间的差异变为π的整数倍。 ;输入波导（105a）光学连接到多模波导（102a）的输入侧，使得其光轴偏离多模波导（102a）的中心线;两个输出波导（103a和104a）在多模波导（102a）的输出侧的不同位置光耦合到多模波导（102a）。两个输出波导（103a和104a）以使消光比最大化的方式定位。
主权项	An opticaldemultiplexer(100a)forseparatinginput wavelength-multiplexed light of first and second wavelengths, comprising: a multi-mode propagation portion (102a) allowing multi-mode propagation of light of the first and second wavelengths, and separating powers of the light of first and second wavelengths by causing internal mode interference; an input portion (101a) for inputting light to the multi-mode propagation portion from such an input position as to cause separation of the powers of light in the multi-mode propagation portion; and first and second output portions (103a and 104a) for outputting the light of first and second wavelengths from the multi-mode propagation portion via such positions on an output end face as to cause separation of the powers of the light of first and second wavelengths and maximize an extinction ratio indicating the size of the power of light of a desired wavelength with respect to the power of light of a wavelength to be cut off.
申请日期	2003-11-18
专利号	EP1426799A2
专利状态	失效
申请号	EP2003026396
公开（公告）号	EP1426799A2
IPC 分类号	G02B6/12 \| G02B6/28 \| G02B6/34 \| G02F1/313 \| G02B6/293
专利代理人	-
代理机构	GASSNER, WOLFGANG, DR.
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/53188
专题	半导体激光器专利数据库
作者单位	PANASONIC CORPORATION
推荐引用方式 GB/T 7714	HAMADA, HIDENOBU. Optical demultiplexer, optical multi-/demultiplexer, and optical device. EP1426799A2[P]. 2004-06-09.

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