公开(公告)号：EP0455939A3

公开(公告)日：1992-05-13

申请号：EP91101434.8

申请日：1991-02-04

申请人： CORNING INCORPORATED

发明人： Burton, Clement Dowd ,  DeMeritt, Jeffery Alan ,  Hall, Douglas Warren

IPC分类号： G02B6/42 ,  G02B6/26

CPC分类号： G02B6/4204 ,  G02B6/4208 ,  G02B6/4216 ,  G02B6/4225 ,  G02B6/4226

摘要： The amount of light coupled to an optical fiber (15) from a laser diode (11) is limited to a predetermined maximum power. A lens (30) receiving the laser output is adjusted to maximize the power received at the core portion of the fiber endface (17). The power coupled to the fiber is then reduced to the predetermined power level by insertion of a polarizing or absorbing filter (39) in the optical path. When a polarizing filter is employed, it is rotated until the predetermined power is coupled to the fiber. If a quarter wave plate is included, negative effects due to back reflections from the fiber end face into the laser diode can be eliminated.

摘要翻译： 耦合到来自激光二极管的光纤的光量被限制为预定的最大功率。 调整接收激光输出的透镜以使在光纤端面的芯部处接收的功率最大化。 然后通过在光路中插入偏振或吸收滤光器将耦合到光纤的功率降低到预定的功率水平。 当使用偏振滤光器时，旋转直到预定的功率耦合到光纤。 如果包括四分之一波片，则可以消除由于从光纤端面向激光二极管的反射反射的负面影响。

公开(公告)号：EP0455939A2

公开(公告)日：1991-11-13

申请号：EP91101434.8

申请日：1991-02-04

申请人： CORNING INCORPORATED

发明人： Burton, Clement Dowd ,  DeMeritt, Jeffery Alan ,  Hall, Douglas Warren

IPC分类号： G02B6/42 ,  G02B6/26

CPC分类号： G02B6/4204 ,  G02B6/4208 ,  G02B6/4216 ,  G02B6/4225 ,  G02B6/4226

摘要： The amount of light coupled to an optical fiber (15) from a laser diode (11) is limited to a predetermined maximum power. A lens (30) receiving the laser output is adjusted to maximize the power received at the core portion of the fiber endface (17). The power coupled to the fiber is then reduced to the predetermined power level by insertion of a polarizing or absorbing filter (39) in the optical path. When a polarizing filter is employed, it is rotated until the predetermined power is coupled to the fiber. If a quarter wave plate is included, negative effects due to back reflections from the fiber end face into the laser diode can be eliminated.

摘要翻译： 耦合到来自激光二极管的光纤的光量被限制为预定的最大功率。 调整接收激光输出的透镜以使在光纤端面的芯部处接收的功率最大化。 然后通过在光路中插入偏振或吸收滤光器将耦合到光纤的功率降低到预定的功率水平。 当使用偏振滤光器时，旋转直到预定的功率耦合到光纤。 如果包括四分之一波片，则可以消除由于从光纤端面向激光二极管的反射反射的负面影响。

公开(公告)号：EP0840469A3

公开(公告)日：2000-01-05

申请号：EP97118489.0

申请日：1997-10-24

申请人： CORNING INCORPORATED

发明人： Burton, Clement Dowd ,  Hall, Douglas Warren

IPC分类号： H04B10/24 ,  H04B10/17 ,  H04J14/02 ,  G02B6/34 ,  H01S3/067

CPC分类号： G02B6/2937 ,  H01S3/0064 ,  H01S3/06787 ,  H01S3/10023 ,  H04B10/2912 ,  H04B10/2971

摘要： An improved four-port dichroic WDM, for use in a multiwavelength, bi-directional optical amplifier, having a dichroic filter for substantially reflecting a first wavelength band input to the WDM to an output of the WDM for the first wavelength band and for substantially transmitting a second wavelength band input to the WDM to an output of the WDM for the second wavelength band, in which some of a first 3dB wavelength in the first wavelength band is transmitted by the filter and some of a second 3 dB wavelength in the second wavelength band is reflected by the filter, includes another dichroic filter having a filter function different than the filter function of the WDM filter providing an insertion loss for the first or the second 3 dB wavelengths sufficient to reflect and transmit, respectively, substantially all of the first and second 3 dB wavelengths. Additional dichroic filters for suppressing 3 dB light are used to prevent Q-switching in an optical gain cavity in a multiwavelength, bi-directional optical amplifier formed by a reflection point in an optical path connected to the amplifier.

公开(公告)号：EP0840469A2

公开(公告)日：1998-05-06

申请号：EP97118489.0

申请日：1997-10-24

申请人： CORNING INCORPORATED

发明人： Burton, Clement Dowd ,  Hall, Douglas Warren

IPC分类号： H04B10/24

CPC分类号： G02B6/2937 ,  H01S3/0064 ,  H01S3/06787 ,  H01S3/10023 ,  H04B10/2912 ,  H04B10/2971

摘要： An improved four-port dichroic WDM, for use in a multiwavelength, bi-directional optical amplifier, having a dichroic filter for substantially reflecting a first wavelength band input to the WDM to an output of the WDM for the first wavelength band and for substantially transmitting a second wavelength band input to the WDM to an output of the WDM for the second wavelength band, in which some of a first 3dB wavelength in the first wavelength band is transmitted by the filter and some of a second 3 dB wavelength in the second wavelength band is reflected by the filter, includes another dichroic filter having a filter function different than the filter function of the WDM filter providing an insertion loss for the first or the second 3 dB wavelengths sufficient to reflect and transmit, respectively, substantially all of the first and second 3 dB wavelengths. Additional dichroic filters for suppressing 3 dB light are used to prevent Q-switching in an optical gain cavity in a multiwavelength, bi-directional optical amplifier formed by a reflection point in an optical path connected to the amplifier.

摘要翻译： 一种改进的四端口分色WDM，一种用于在多波长双向光放大器使用，具有二向色滤光片基本上反射带输入到WDM的第一波长对WDM的输出为所述第一波长带以及用于基本上发射 的波长带输入的第二到WDM对WDM的第二波长带，其中一些在第一波长带中的第一3dB波长的反式由过滤器和mitted的输出一些中第二3dB波长的第二波长 带由滤光器反射，包括：具有比所述WDM滤光器的第一或第二3dB波长的充分提供插入损耗的滤波器函数的不同的滤波器函数分别以反射和透射，基本上所有的第一的另一二向色滤光片 和第二3dB波长。 用于抑制3分贝光附加分色滤光器是用来防止Q开关在光学增益腔中多波长，通过反射FORMED双向光放大器，连接到放大器的光路指向英寸