Wavelength tunable light source

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	Wavelength tunable light source
其他题名	Wavelength tunable light source
	KWON, OH KEE; KIM, KANG HO; KIM, JONGHOI; SIM, EUNDEOK; OH, KWANG RYONG
	2008-05-21
专利权人	ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
公开日期	2008-05-21
授权国家	欧洲专利局
专利类型	发明申请
摘要	Provided is a wavelength tunable light source including a semiconductor optical amplifier, a beam steering unit or a beam deflector, and a concave diffraction grating integrated therein. The wavelength tunable light source can be easily implemented since locations to which a beam is diffracted by the concave diffraction grating and at which portions of the beam with different wavelengths have constructive interference form a straight line, not a Rowland circle. Furthermore, wavelength tuning and optical coupling characteristics of the wavelength tunable light source are excellent. Since both single integration and hybrid integration are possible for the wavelength tunable light source, the wavelength tunable light source exhibits superior operating characteristics and high reliability.
其他摘要	提供一种波长可调光源，包括半导体光放大器，光束控制单元或光束偏转器，以及集成在其中的凹面衍射光栅。波长可调光源可以容易地实现，因为光束被凹面衍射光栅衍射到的位置和具有不同波长的光束的部分具有相长干涉形成直线，而不是罗兰圆。此外，波长可调光源的波长调谐和光学耦合特性是优异的。由于波长可调光源可以进行单一集成和混合集成，因此波长可调光源具有优异的工作特性和高可靠性。
主权项	A wavelength tunable light source comprising: a semiconductor optical amplifier (SOA) generating a optical signal having a predetermined wavelength band in a first direction and outputting the amplified optical signal having a predetermined single wavelength inside the wavelength band in a second direction opposite to the first direction; a beam steering unit altering an output path of the wavelength band optical signal; and a waveguide having a linear end connected to the beam steering unit, the wavelength band optical signal being spread from the linear end and the other end formed of a concave diffraction grating which reflects and diffracts the wavelength band optical signal and enables the single wavelength optical signal to have constructive interference at the linear end, wherein the constructively-interfered single wavelength optical signal is focused at the linear end and is fed back to the SOA via the beam steering unit.
申请日期	2006-12-06
专利号	EP1796231A3
专利状态	失效
申请号	EP2006125505
公开（公告）号	EP1796231A3
IPC 分类号	H01S5/14 \| H01S5/40 \| G02B6/34
专利代理人	-
代理机构	BETTEN & RESCH
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/53876
专题	半导体激光器专利数据库
作者单位	ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
推荐引用方式 GB/T 7714	KWON, OH KEE,KIM, KANG HO,KIM, JONGHOI,et al. Wavelength tunable light source. EP1796231A3[P]. 2008-05-21.

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