公开(公告)号：US20060140237A1

公开(公告)日：2006-06-29

申请号：US11021535

申请日：2004-12-23

申请人： Nuditha Amarasinghe ,  Taha Masood ,  Steven Patterson ,  Gary Evans

发明人： Nuditha Amarasinghe ,  Taha Masood ,  Steven Patterson ,  Gary Evans

IPC分类号： H01S5/00

CPC分类号： H01S5/125 ,  H01S5/1221 ,  H01S5/18

摘要： An improved grating-outcoupled surface-emitting semiconductor laser architecture is provided. A second-order grating is placed between two distributed Bragg reflector gratings. The period of the second order grating is positively or negatively detuned from the distributed Bragg reflector selected optical wavelength at which the laser operates. Detuning of the second-order grating towards shorter or longer wavelengths allows kink-free, linear LI curves light output versus forward current) for grating-outcoupled surface-emitting lasers. Due to the detuning of the outcoupler grating, the outcoupled radiation emits two beams that deviate slightly from the normal axis. A design point may then be chosen where the power coutcoupled by symmetric and antisymmetric modes cross and where the outcoupled power is independent of the phase variation.

摘要翻译： 提供了一种改进的光栅耦合表面发射半导体激光器结构。 二阶光栅放置在两个分布布拉格反射器光栅之间。 第二级光栅的周期与激光器所在的分布式布拉格反射体所选择的光波长正向或负向失谐。 对于光栅输出耦合的表面发射激光器，二阶光栅向更短或更长波长的去抖动允许无扭结的线性LI曲线光输出对正向电流）。 由于外耦合光栅的失谐，输出耦合的辐射发射出两个与正常轴线稍微偏离的光束。 然后可以选择设计点，其中功率由对称和反对称模式耦合的功率交叉，并且输出耦合功率独立于相位变化。

公开(公告)号：US20060176915A1

公开(公告)日：2006-08-10

申请号：US11055128

申请日：2005-02-08

申请人： Gary Evans ,  Taha Masood ,  Steven Patterson ,  Nuditha Amarasinghe ,  Jerome Butler

发明人： Gary Evans ,  Taha Masood ,  Steven Patterson ,  Nuditha Amarasinghe ,  Jerome Butler

IPC分类号： H01S3/10

CPC分类号： H01S5/06256 ,  H01S5/187

摘要： A single-mode grating-outcoupled surface emitting (GSE) semiconductor laser architecture is provided. This architecture enables high speed modulation of the GSE laser, which is accomplished by only varying the relative phase of counter propagating waves in the outcoupler grating region of the lasing cavity.

摘要翻译： 提供了单模光栅耦合表面发射（GSE）半导体激光器结构。 该架构能够实现GSE激光器的高速调制，GSE激光器仅通过改变激光腔的输出耦合器光栅区域中的反向传播波的相对相位来实现。