Thermally compensating spot-size converter for an athermal laser

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	Thermally compensating spot-size converter for an athermal laser
其他题名	Thermally compensating spot-size converter for an athermal laser
	BOVINGTON, JOCK T.; DJORDJEVIC, STEVAN S.; ZHENG, XUEZHE; KRISHNAMOORTHY, ASHOK V.
	2018-03-22
专利权人	ORACLE INTERNATIONAL CORPORATION
公开日期	2018-03-22
授权国家	美国
专利类型	发明申请
摘要	A laser includes a reflective gain medium (RGM) comprising an optical gain material coupled with an associated reflector. The RGM is coupled to a spot-size converter (SSC), which optically couples the RGM to an optical reflector through a silicon waveguide. The SSC converts an optical mode-field size of the RGM to an optical mode-field size of the silicon waveguide. A negative thermo-optic coefficient (NTOC) waveguide is fabricated on top of the SSC. In this way, an optical signal, which originates from the RGM, passes into the SSC, is coupled into the NTOC waveguide, passes through the NTOC waveguide, and is coupled back into the SSC before passing into the silicon waveguide. During operation, the RGM, the spot-size converter, the NTOC waveguide, the silicon waveguide and the silicon mirror collectively form a lasing cavity for the athermal laser. Finally, a laser output is optically coupled to the lasing cavity.
其他摘要	激光器包括反射增益介质（RGM），反射增益介质包括与相关联的反射器耦合的光学增益材料。RGM耦合到点尺寸转换器（SSC），其通过硅波导将RGM光学耦合到光学反射器。SSC将RGM的光模场尺寸转换为硅波导的光模场尺寸。在SSC之上制造负热光系数（NTOC）波导。通过这种方式，源自RGM的光信号进入SSC，耦合到NTOC波导中，穿过NTOC波导，并且在进入硅波导之前被耦合回到SSC中。在操作期间，RGM，光点尺寸转换器，NTOC波导，硅波导和硅镜共同形成无热激光的激光腔。最后，激光输出光耦合到激光腔。
主权项	An athermal laser, comprising: a reflective gain medium (RGM) comprising an optical gain material coupled with an associated reflector; a silicon waveguide; a silicon mirror, which is optically coupled to the silicon waveguide; a spot-size converter (SSC), which optically couples the RGM to the silicon waveguide, wherein the SSC converts an optical mode-field size of the RGM to an optical mode-field size of the silicon waveguide; a negative thermo-optic coefficient (NTOC) waveguide comprised of an NTOC material fabricated on top of the SSC, whereby an optical signal, which originates from the RGM, passes into the SSC, is coupled into the NTOC waveguide, passes through the NTOC waveguide, and is coupled back into the SSC before passing into the silicon waveguide; wherein the RGM, the spot-size converter, the NTOC waveguide, the silicon waveguide and the silicon mirror collectively form a lasing cavity for the athermal laser; and a laser output, which is optically coupled out of the lasing cavity.
申请日期	2017-01-12
专利号	US20180083420A1
专利状态	授权
申请号	US15/405209
公开（公告）号	US20180083420A1
IPC 分类号	H01S5/068 \| H01S5/30 \| H01S5/22
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/181661/57538
专题	半导体激光器专利数据库
作者单位	ORACLE INTERNATIONAL CORPORATION
推荐引用方式 GB/T 7714	BOVINGTON, JOCK T.,DJORDJEVIC, STEVAN S.,ZHENG, XUEZHE,et al. Thermally compensating spot-size converter for an athermal laser. US20180083420A1[P]. 2018-03-22.