Laser-to-fiber coupling

OPT OpenIR > 半导体激光器专利数据库

	Laser-to-fiber coupling
其他题名	Laser-to-fiber coupling
	BULLINGTON, JEFF A.; STOLTZ, RICHARD A.; VAISSIE, LAURENT; JOHNSON, ERIC G.; MOHARAM, M.G.
	2004-08-26
专利权人	RESEARCH FOUNDATION OF THE CENTRAL FLORIDA UNIVERSITY OF THE
公开日期	2004-08-26
授权国家	美国
专利类型	发明申请
摘要	Our wafer scale processing techniques produce chip-laser-diodes with a diffraction grating (78) that redirects output light out the top (88) and/or bottom surfaces. Generally, a diffraction grating (78) and integrated lens-grating (78) are used herein to couple light from the chip to an output fiber (74), and the lens-grating (78) is spaced from the diffraction grating (76). Preferably the diffraction grating (76) and integrated lens grating (78) are also used to couple light from the output fiber (74) back to the active region of the chip. The integrated lens-grating (78) can be in a coupling block (82). The use of a coupling block (82) can eliminate "facet-type damage". A coupling block (82) is generally used herein to couple light from the chip to an output fiber (74), and preferably to couple feedback reflected from the fiber (74) back to the chip.
其他摘要	我们的晶圆级加工技术生产具有衍射光栅（78）的芯片激光二极管，其将输出光重定向到顶部（88）和/或底部表面。通常，这里使用衍射光栅（78）和集成透镜光栅（78）将来自芯片的光耦合到输出光纤（74），并且透镜光栅（78）与衍射光栅（76）间隔开。。优选地，衍射光栅（76）和集成透镜光栅（78）也用于将来自输出光纤（74）的光耦合回芯片的有源区。集成透镜光栅（78）可以位于耦合块（82）中。使用耦合块（82）可以消除“小面型损坏”。这里通常使用耦合块（82）将来自芯片的光耦合到输出光纤（74），并且优选地将从光纤（74）反射的反馈耦合回芯片。
主权项	An improved method of horizontally generating light within a semiconductor structure, and diffracting at least a portion of the generated light out of said structure and into an optical fiber, said method comprising: providing a semiconductor substrate having a substrate with a bottom surface and having a lower metal contact on at least a portion of said substrate bottom surface; providing a core layer containing active-region, a waveguide region longitudinally-displaced from an active and a passive region with an adjacent passive-end facet, said core layer being over said substrate; providing an top cladding layer on said core layer; providing a top electrode layer over said top cladding layer; providing a top metal contact on a portion of said top electrode layer over said active region; providing grating fingers extending down into said top cladding layer over at least a portion of said waveguide region to provide a diffraction grating; providing an integrated lens-grating wherein the lens-grating is spaced by at least one-hundred wavelengths from the top grating from the diffraction grating; providing an optical fiber; and applying a voltage between said top and bottom metal contacts, whereby light is generated in said active region and at least a portion of the generated light is diffracted out of at least one of said cladding upper surface and said substrate bottom surface, and focused into said fiber by said lens-grating.
申请日期	2002-03-22
专利号	US20040165637A1
专利状态	失效
申请号	US10/472012
公开（公告）号	US20040165637A1
IPC 分类号	G02B6/34 \| G02B6/42 \| H01S5/00 \| H01S5/026 \| H01S5/042 \| H01S5/12 \| H01S5/14 \| H01S5/187
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/181661/67745
专题	半导体激光器专利数据库
作者单位	RESEARCH FOUNDATION OF THE CENTRAL FLORIDA UNIVERSITY OF THE
推荐引用方式 GB/T 7714	BULLINGTON, JEFF A.,STOLTZ, RICHARD A.,VAISSIE, LAURENT,et al. Laser-to-fiber coupling. US20040165637A1[P]. 2004-08-26.