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1. 发明授权

US5222170A Optical fiber device fabrication 失效
标题翻译：光纤设备制造
公开(公告)号：US5222170A
公开(公告)日：1993-06-22
申请号：US931124
申请日：1992-08-17
申请人： Daniel S. Bargar , Calixto Estrada , Jodie S. Hobson , Keith R. Preston , Craig A. West
发明人： Daniel S. Bargar , Calixto Estrada , Jodie S. Hobson , Keith R. Preston , Craig A. West
IPC分类号： G02B6/42
CPC分类号： G02B6/4226 , G02B6/4202 , G02B6/4248
摘要： An optical device structure for use where an optical fiber requires to be accurately aligned in an optically coupled relationship with another optical component in a package 100 comprises an optical fiber 16 mounted in a feedthrough tube 9 which is aligned with a laser 6 through an aperture 18 in a wall 4 of the package 100. The alignment is held by a first alignment means 10, in this case a sleeve spool, which is secured to the wall 4 and to the feedthrough tube 9 relatively close to the wall 4, and by a second alignment means 11, in this case a tubular bushing, which is also fixed to the wall 4 and to the feedthrough tube 9 in a region remote from the wall 4. The use of the two alignment means 10, 11 fixed in this manner permits the desired optical coupling to be accurately fine-tuned in fabrication by a novel technique.
摘要翻译：一种用于光纤需要与封装100中的另一光学部件的光学耦合关系精确对准的光学器件结构包括安装在馈通管9中的光纤16，馈通管9通过孔18对准激光器6 在该封套100的壁4中。对准由第一对准装置10保持，在这种情况下是套筒卷轴，其被固定到相对靠近壁4的壁4和馈通管9上，第二对准装置11，在这种情况下是管状衬套，其也在远离壁4的区域中固定到壁4和馈通管9上。以这种方式固定的两个对准装置10,11的使用允许所需的光学耦合在通过新技术的制造中被精确地微调。

2. 发明授权

US5193027A Optical filter tuning apparatus and an optical filtering method 失效
标题翻译：光学滤波器调光装置和光学滤波方法
公开(公告)号：US5193027A
公开(公告)日：1993-03-09
申请号：US743404
申请日：1991-08-14
申请人： Keith R. Preston
发明人： Keith R. Preston
IPC分类号： G02B6/28 , G02B6/293 , G02B6/34 , G02B26/00
CPC分类号： G02B6/34
摘要： An optical filter tuning apparatus and filtering method uses an optical filter that reflects light of a predetermined wavelength which is dependent on the position of incidence of the light on the filter and a retroreflector moveable with respect to the filter and which reflects light from an optical source to the position of incidence and reflects light of the predetermined wavelength from the filter to an optical receiver.

3. 发明授权

US4748632A Method and apparatus for controlling lasers 失效
标题翻译：用于控制激光器的方法和装置
公开(公告)号：US4748632A
公开(公告)日：1988-05-31
申请号：US548480
申请日：1983-11-03
申请人： Keith R. Preston
发明人： Keith R. Preston
IPC分类号： H01S5/00 , H01S3/105 , H01S3/139 , H01S5/042 , H01S5/14 , H01S3/13
CPC分类号： H01S5/14 , H01S3/1398 , H01S5/06837
摘要： A method and apparatus for controlling an external cavity of a semiconductor laser to maintain its emission in a single longitudinal mode. The length of the external cavity is varied by an electromagnet acting on ferromagnetic material attached to a copper foil reflector. Total optical power output of the laser is monitored and single longitudinal mode operation is achieved by maximizing the power output. An active technique employs modulation of the reflector position about a mean value. The magnetic manipulation of the reflector may find application in other laser systems, e.g. gas lasers.
摘要翻译：一种用于控制半导体激光器的外部空腔以将其发射保持在单个纵向模式的方法和装置。外部空腔的长度由作用在附着在铜箔反射器上的铁磁材料上的电磁体变化。监测激光的总光功率输出，并通过最大化功率输出实现单纵模运行。主动技术采用反射器位置关于平均值的调制。反射器的磁操作可以应用于其他激光系统，例如，气体激光器。

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