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	Method and device for using optical feedback to overcome bandwidth limitations caused by relaxation oscillation in vertical cavity surface emitting lasers (vcsels)
	JI, CHEN; SU, CHUNG-YI
	2009-12-31
著作权人	AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
专利号	US20090323751A1
国家	美国
文献子类	发明申请
其他题名	Method and device for using optical feedback to overcome bandwidth limitations caused by relaxation oscillation in vertical cavity surface emitting lasers (vcsels)
英文摘要	A semiconductor device is provided that includes an optical feedback structure that is monolithically integrated with a VCSEL device and which extends the speed of the VCSEL device beyond the speed to which it would otherwise be limited due to relaxation oscillation. The optical feedback structure does not rely on light emissions from the VCSEL substrate material to produce optical feedback. Consequently, extension of the bandwidth of the semiconductor device through the use of optical feedback is not limited by the absorption threshold wavelength of the substrate material. Furthermore, because the optical feedback structure does not include the substrate, the ability to use optical feedback to extend the bandwidth of the device is independent of the precision with which the substrate thickness can be controlled.
公开日期	2009-12-31
申请日期	2008-06-30
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/63364]
专题	半导体激光器专利数据库
作者单位	AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
推荐引用方式 GB/T 7714	JI, CHEN,SU, CHUNG-YI. Method and device for using optical feedback to overcome bandwidth limitations caused by relaxation oscillation in vertical cavity surface emitting lasers (vcsels). US20090323751A1. 2009-12-31.

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