Laser diode with output fiber feedback

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	Laser diode with output fiber feedback
其他题名	Laser diode with output fiber feedback
	BULLINGTON, JEFF A.; STOLTZ, RICHARD A.; VAISSIE, LAURENT; JOHNSON, ERIC G.
	2004-06-17
专利权人	BULLINGTON JEFF A.
公开日期	2004-06-17
授权国家	美国
专利类型	发明申请
摘要	Wafer scale processing techniques produce chip-laser-diodes with an active region (62) and a diffraction grating (76) that redirects output light out the top and/or bottom surfaces. The diffraction grating (76) redirects a novel feedback from the optical output (e.g., fiber (74)) to produce lasing that self-aligns itself to the fiber input, reducing assembly costs. Preferably, a diffraction grating (76) and integrated lens-grating are used herein to couple light from the chip to an output fiber (74), and the lens-grating is spaced from the diffraction grating (76). Combination grating and additional gratings and/or integrated lenses on the top or bottom of the diode can also be made utilizing wafer scale processes.
其他摘要	晶片规模处理技术产生具有有源区域（62）和衍射光栅（76）的芯片 - 激光二极管，该衍射光栅将输出光重定向到顶部和/或底部表面。衍射光栅（76）重新定向来自光输出（例如，光纤（74））的新颖反馈，以产生激光，该激光使其自身与光纤输入对准，从而降低了组装成本。优选地，这里使用衍射光栅（76）和集成透镜光栅将来自芯片的光耦合到输出光纤（74），并且透镜光栅与衍射光栅（76）间隔开。在二极管的顶部或底部上的组合光栅和附加光栅和/或集成透镜也可以利用晶片规模工艺制成。
主权项	A method of generating a beam of light using gratings fabricated into a semiconductor chip, said semiconductor chip having a topside and a bottom side, said method comprising: electrically energizing a horizontal active region in a core layer in a semiconductor chip; using a topside out-coupling grating to diffract said light beam out a horizontal output surface; and positioning an optical fiber to receive said diffracted light beam and to transmit a major portion of light incident on said fiber-input into said fiber, and reflecting a light-amplification-inducin-g portion of said light from said fiber, or an input stub connected to said fiber, back through said grating to said active layer, whereby reflecting the feedback from the fiber through the grating causes lasing at a wavelength that the light beam is directed, or is thermally-directable, into said fiber.
申请日期	2002-03-22
专利号	US20040114642A1
专利状态	失效
申请号	US10/472011
公开（公告）号	US20040114642A1
IPC 分类号	G02B6/12 \| G02B6/30 \| G02B6/34 \| G02B6/42 \| H01S3/30 \| 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/181661/52680
专题	半导体激光器专利数据库
作者单位	BULLINGTON JEFF A.
推荐引用方式 GB/T 7714	BULLINGTON, JEFF A.,STOLTZ, RICHARD A.,VAISSIE, LAURENT,et al. Laser diode with output fiber feedback. US20040114642A1[P]. 2004-06-17.