公开(公告)号：US20050111073A1

公开(公告)日：2005-05-26

申请号：US10718030

申请日：2003-11-20

申请人： Jing-Jong Pan ,  Xiangong Qiu ,  Feng Zhou ,  Henry He ,  Changhong Jiang ,  Hai-Ming Wu

发明人： Jing-Jong Pan ,  Xiangong Qiu ,  Feng Zhou ,  Henry He ,  Changhong Jiang ,  Hai-Ming Wu

IPC分类号： G02B6/26 ,  G02B6/42 ,  G02F1/01 ,  G02F1/055 ,  G02F1/09 ,  G02F1/13 ,  H04B10/00

CPC分类号： G02B6/2746 ,  G02B6/266 ,  G02B6/4206 ,  G02F1/0136 ,  G02F1/055 ,  G02F1/093 ,  G02F1/13 ,  G02F2203/48

摘要： A polarization element and a polarization-sensitive optical isolator are integrated to form an integrated VOA. A preferred embodiment uses a liquid crystal cell as the polarization element to which is attached an optical isolator core of a first polarizer, Faraday rotator, and second polarizer. Voltage on the liquid crystal cell electrodes controls the amount of polarized light from the liquid crystal cell passing through the first polarizer and light in the opposite direction is blocked. The integrated VOA can be mounted within a laser device package so that the power of the source laser diode on the output fiber can be controlled and yet the laser diode is protected from light undesirably entering laser device package through the output fiber.

摘要翻译： 集成了偏振元件和偏振敏感光隔离器，以形成集成的VOA。 优选实施例使用液晶单元作为安装有第一偏振器，法拉第旋转器和第二偏振器的光隔离器芯的偏振元件。 液晶单元电极上的电压控制来自通过第一偏振器的液晶单元的偏振光的量，并且阻止相反方向的光。 集成的VOA可以安装在激光器件封装中，使得可以控制输出光纤上的源极激光二极管的功率，并且保护激光二极管免受不期望地通过输出光纤进入激光器件封装的光。