公开(公告)号：US4756607A

公开(公告)日：1988-07-12

申请号：US071500

申请日：1987-07-09

申请人： Nobutaka Watanabe ,  Yuichi Odagiri

发明人： Nobutaka Watanabe ,  Yuichi Odagiri

IPC分类号： G02B27/28 ,  G02F1/09 ,  G02F1/29

CPC分类号： G02F1/093

摘要： In an optical isolator device using a Faraday rotator for permitting a forward light beam to pass therethrough but for preventing a reverse light beam from passing therethrough, two Faraday rotators are used in a cascade-connection in order to improve the temperature characteristic of the isolation over a wide temperature range. One of two Faraday rotators is prepared to have the Faraday rotation angle of 45.degree. for a wavelength shorter than the intended wavelength .lambda..sub.0, while the other having the Faraday rotation angle of 45.degree. for a wavelength longer than .lambda..sub.0. A polarizer and an analyzer are disposed on opposite ends of one of the rotators at a rear stage and prevent the reverse light beam from passing therethrough. Another polarizer and another analyzer can further be disposed at opposite ends of the other front stage rotator so that two isolators are arranged in a cascade-connection. The rotation angular deviation of the light beam caused at the front stage rotator by the temperature variation is cancelled by the rotation angular deviation caused at the rear stage rotator by the same temperature variation.

摘要翻译： 在使用法拉第旋转器来允许正射光束通过但用于防止反向光束通过的光隔离器装置中，两个法拉第旋转器用于级联连接，以便改善隔离的温度特性 温度范围很宽 准备两个法拉第旋转器之一，其波长比预期波长λ0短的法拉第旋转角为45°，另一个法拉第旋转角为45°，波长比λ0长。偏振片和 分析器设置在后级的一个转子的相对端上，并防止反向光束通过。 另一个偏振器和另一个分析器可以进一步设置在另一个前级旋转器的相对端，使得两个隔离器被布置成级联。 在前级旋转器中由于温度变化引起的光束的旋转角度偏差由于后级转子由相同的温度变化引起的旋转角度偏差而被抵消。

公开(公告)号：US4884279A

公开(公告)日：1989-11-28

申请号：US185023

申请日：1988-04-22

申请人： Yuichi Odagiri

发明人： Yuichi Odagiri

IPC分类号： H01L33/00 ,  H01S5/024 ,  H01S5/042 ,  H01S5/068 ,  H01S5/0683

CPC分类号： H01S5/0683 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/042 ,  H01S5/06804

摘要： An optical transmission apparatus is operable without being effected by ambient temperature by combining the control over output light of a semiconductor light emitting element, which constitutes a semiconductor laser unit, and the control over the temperature of the light emitting element. The apparatus is usable in an extended range of ambient temperatures.

摘要翻译： 通过组合半导体激光单元的半导体发光元件的输出光的控制以及对发光元件的温度的控制，光传输装置可操作而不受环境温度的影响。 该设备可用于扩展的环境温度范围。

公开(公告)号：US4698821A

公开(公告)日：1987-10-06

申请号：US733683

申请日：1985-05-14

申请人： Tomoji Terakado ,  Yuichi Odagiri

发明人： Tomoji Terakado ,  Yuichi Odagiri

IPC分类号： H01L27/15 ,  H01L27/14 ,  H01L31/153 ,  H01S5/00 ,  H01S5/026 ,  H03K17/94 ,  H01S3/19

CPC分类号： H01S5/0262 ,  H01L31/153 ,  H03K17/941 ,  H01S5/0261 ,  H01S5/0264

摘要： An integrated light amplifier in which a stripe laser is formed over a substrate and then a vertical phototransistor is formed over the laser. Electrodes are attached to the back of the substrate and to the top of the phototransistor with the phototransistor electrode being formed with a hole so that incident light can reach the phototransistor. Before formation of the substrate electrode, the substrate can be ground to the desired thickness. Photocarriers are detected and multiplied in the phototransistor and injected into the stripe laser. Additional electrodes may be provided over the laser in order to bias the laser independently of the incident light.

摘要翻译： 一种集成光放大器，其中在衬底上形成条纹激光，然后在激光上形成垂直光电晶体管。 电极被附着到基片的背面和光电晶体管的顶部，光电晶体管电极形成有孔，使得入射光可以到达光电晶体管。 在形成衬底电极之前，可以将衬底研磨成所需的厚度。 检测光载流子并在光电晶体管中倍增并注入条形激光器。 可以在激光器之上提供附加电极，以便独立于入射光来偏置激光。