公开(公告)号：US07796656B2

公开(公告)日：2010-09-14

申请号：US11979510

申请日：2007-11-05

申请人： Chris Watson ,  Kirill Pimenov ,  Valery Tolstikhin ,  Greg Letal ,  Ron Moore

发明人： Chris Watson ,  Kirill Pimenov ,  Valery Tolstikhin ,  Greg Letal ,  Ron Moore

IPC分类号： H01S3/098 ,  H01S3/08

CPC分类号： H01S5/12 ,  H01S5/0655 ,  H01S5/1014 ,  H01S5/1221 ,  H01S5/1237 ,  H01S5/22

摘要： The invention describes the method and apparatus for enhanced efficiency in a laterally-coupled distributed feedback (LC-DFB) laser. In a device featuring the effective ridge design, lateral confinement of the guided optical modes is provided by a surface etched grating, which also serves as a DFB element of the laser. Coupling and quantum efficiency of such a LC-DFB laser both improve with an increase of the lateral mode order. In accordance with this invention, a dramatic enhancement of the laser efficiency is achievable by designing it to operate in one of the higher order modes, notably the first order mode, while all the other lateral modes, including the zero order mode, are suppressed through gain-loss discrimination. In the exemplary embodiment of the invention, this enhanced efficiency technique is applied to the design of a single-mode LC-DFB laser suitable for a monolithic integration with other active and passive functional elements of photonic integrated circuits fabricated by using one-step epitaxial growth.

摘要翻译： 本发明描述了用于增强侧向耦合分布反馈（LC-DFB）激光器的效率的方法和装置。 在具有有效脊设计的装置中，引导光学模式的横向限制由表面蚀刻光栅提供，其也用作激光的DFB元件。 这种LC-DFB激光器的耦合和量子效率随着横向模式顺序的增加而改善。 根据本发明，激光效率的显着提高可以通过将其设计成以较高阶模式（特别是一阶模式）中的一种工作来实现，而包括零级模式的所有其它横向模式通过 损益歧视。 在本发明的示例性实施例中，该增强效率技术被应用于单模LC-DFB激光器的设计，其适用于通过使用一步外延生长制造的光子集成电路的其它有源和无源功能元件的单片集成 。

公开(公告)号：US20090116522A1

公开(公告)日：2009-05-07

申请号：US11979510

申请日：2007-11-05

申请人： Chris Watson ,  Kirill Pimenov ,  Valery Tolstikhin ,  Greg Letal ,  Ron Moore

发明人： Chris Watson ,  Kirill Pimenov ,  Valery Tolstikhin ,  Greg Letal ,  Ron Moore

IPC分类号： H01S5/00 ,  H01L21/00 ,  H01S3/00 ,  H01L33/00

CPC分类号： H01S5/12 ,  H01S5/0655 ,  H01S5/1014 ,  H01S5/1221 ,  H01S5/1237 ,  H01S5/22

摘要： The invention describes the method and apparatus for enhanced efficiency in a laterally-coupled distributed feedback (LC-DFB) laser. In a device featuring the effective ridge design, lateral confinement of the guided optical modes is provided by a surface etched grating, which also serves as a DFB element of the laser. Coupling and quantum efficiency of such a LC-DFB laser both improve with an increase of the lateral mode order. In accordance with this invention, a dramatic enhancement of the laser efficiency is achievable by designing it to operate in one of the higher order modes, notably the first order mode, while all the other lateral modes, including the zero order mode, are suppressed through gain-loss discrimination. In the exemplary embodiment of the invention, this enhanced efficiency technique is applied to the design of a single-mode LC-DFB laser suitable for a monolithic integration with other active and passive functional elements of photonic integrated circuits fabricated by using one-step epitaxial growth.

摘要翻译： 本发明描述了用于增强侧向耦合分布反馈（LC-DFB）激光器的效率的方法和装置。 在具有有效脊设计的装置中，引导光学模式的横向限制由表面蚀刻光栅提供，其也用作激光的DFB元件。 这种LC-DFB激光器的耦合和量子效率随着横向模式顺序的增加而改善。 根据本发明，激光效率的显着提高可以通过将其设计成以较高阶模式（特别是一阶模式）中的一种工作来实现，而包括零级模式的所有其它横向模式通过 损益歧视。 在本发明的示例性实施例中，该增强效率技术被应用于单模LC-DFB激光器的设计，其适用于通过使用一步外延生长制造的光子集成电路的其它有源和无源功能元件的单片集成 。