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公开(公告)号：EP0522201B1
公开(公告)日：1996-06-19
申请号：EP91121964.0
申请日：1991-12-20
申请人： Corning Incorporated
CPC分类号： H01S3/06754 , H01S3/06787 , H01S3/094011
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公开(公告)号：EP0504479A3
公开(公告)日：1992-12-02
申请号：EP91120225.7
申请日：1991-11-27
申请人： Corning Incorporated
CPC分类号： G02B6/29332 , G02B6/2835 , H01S3/06754
摘要： Disclosed is a fiber amplifier system in which a gain fiber is operatively combined with a fiber optic coupler having first and second coupler optical fibers. The coupler fibers are fused together along a portion of their lengths to form a wavelength dependent coupling region whereby most of the light power of a wavelength λ s couples between them, and most of the light power of a wavelength λ p that is introduced into the first fiber remains in it. The mode field diameter of the first coupler fiber is substantially matched to that of the gain fiber and is smaller than that of the second coupler fiber. One end of the first coupler fiber is spliced to the gain fiber. A transmission fiber is spliced to the second coupler fiber, and a laser diode introduces pumping light of wavelength λ p to the first coupler fiber. The fiber optic coupler preferably includes an elongated body of matrix glass through which the first and second coupler fibers extend. The matrix glass has a refractive index n₃ that is lower than that of the fiber claddings. The fibers are fused together along with the midregion of the matrix glass, the fiber cores being more closely spaced at the central portion of the midregion than at the body endfaces, thereby forming the coupling region.
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3.发明公开Method and module for coupling from a light emitting diode 失效Methode和Modul zum Koppeln von einer lichtemittierenden Diode。
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
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。
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公开(公告)号：EP0935146A2
公开(公告)日：1999-08-11
申请号：EP99108801.4
申请日：1993-01-20
申请人： CORNING INCORPORATED
发明人： Antos, Anthony Joseph , Hall, Douglas Warren , Blankenship, Michael Gregg , Murphy, Edward Francis , Smith, David Kinney
CPC分类号： H04B10/25253 , C03B2203/36 , G02B6/02261 , G02B6/0228 , G02B6/03627 , G02B6/03644 , G02B6/03666 , G02B6/29377
摘要： A silica based dispersion compensating optical waveguide fiber includes a core region and a surrounding clad layer. The core region has a refractive index profile which includes a central core region doped with an index raising dopant having a positive central core region index of refraction with a positive Delta %, surrounded by a core moat region having a negative moat region index of refraction with a negative Delta %. The clad layer has a clad index of refraction, said central core region index of refraction being greater than said clad index of refraction which is greater than said core moat region index of refraction. The fiber has a dispersion D dcf more negative than -20 ps/nm-km at a given wavelength in the range of 1520nm to 1565nm, an attenuation at the given wavelength in the range of 1520nm to 1565nm less than 1 dB/km with a negative average dispersion slope S dcf (ps/nm 2 ) in the wavelength range of 1520nm to 1565nm, and the dispersion at the given wavelength in the range of 1520nm to 1565nm divided by the attenuation at the given wavelength in the range of 1520nm to 1565nm is more negative than -120 ps/nm-dB.
摘要翻译： 一种基于二氧化硅的色散补偿光波导纤维包括纤芯区和周围的包层。 核心区域具有折射率分布，其包括掺杂有折射率提高掺杂剂的中心纤芯区域，所述折射率提高掺杂剂具有正中心纤芯区域折射率，具有正Δ％，被具有负折射率区域折射率的核心壕区 负的Delta％。 所述包层具有包层折射率，所述中心纤芯区折射率大于所述包层折射率，所述包层折射率大于所述核心mo区折射率。 在1520nm至1565nm范围内的给定波长处，光纤具有比-20ps / nm-km更负的色散Ddcf，在1520nm至1565nm范围内的给定波长处的衰减小于1dB / km，阴性 在1520nm至1565nm的波长范围内的平均色散斜率Sdcf（ps / nm2），以及在1520nm至1565nm范围内的给定波长下的色散除以在1520nm至1565nm范围内的给定波长下的衰减，是更负的 大于-120ps / nm-dB。
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公开(公告)号：EP0440049B1
公开(公告)日：1994-06-15
申请号：EP91100548.6
申请日：1991-01-18
申请人： CORNING INCORPORATED
发明人： Lerminiaux, Christian , Laborde, Pascale , Benveniste, Carlos Obadia Nissim , Hall, Douglas Warren , Jansen, Richard
IPC分类号： H01S3/06
CPC分类号： H01S3/0632
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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
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。
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7.发明公开
公开(公告)号：EP0935146A3
公开(公告)日：2000-04-26
申请号：EP99108801.4
申请日：1993-01-20
申请人： CORNING INCORPORATED
发明人： Antos, Anthony Joseph , Hall, Douglas Warren , Blankenship, Michael Gregg , Murphy, Edward Francis , Smith, David Kinney
CPC分类号： H04B10/25253 , C03B2203/36 , G02B6/02261 , G02B6/0228 , G02B6/03627 , G02B6/03644 , G02B6/03666 , G02B6/29377
摘要： A silica based dispersion compensating optical waveguide fiber includes a core region and a surrounding clad layer. The core region has a refractive index profile which includes a central core region doped with an index raising dopant having a positive central core region index of refraction with a positive Delta %, surrounded by a core moat region having a negative moat region index of refraction with a negative Delta %. The clad layer has a clad index of refraction, said central core region index of refraction being greater than said clad index of refraction which is greater than said core moat region index of refraction. The fiber has a dispersion D dcf more negative than -20 ps/nm-km at a given wavelength in the range of 1520nm to 1565nm, an attenuation at the given wavelength in the range of 1520nm to 1565nm less than 1 dB/km with a negative average dispersion slope S dcf (ps/nm 2 ) in the wavelength range of 1520nm to 1565nm, and the dispersion at the given wavelength in the range of 1520nm to 1565nm divided by the attenuation at the given wavelength in the range of 1520nm to 1565nm is more negative than -120 ps/nm-dB.
摘要翻译： 公开了一种色散补偿光纤系列，其适用于在1290nm至1330nm范围内的波长处优化用于零色散操作的常规单模传输光纤，以形成适合于低色散操作的传输链路 在1520-1565 nm波长窗口。 色散补偿光纤能够在1520-1565nm区域的波长处提供比-20ps / nm-km更负的色散和小于1dB / km的衰减。 某些色散补偿光纤还表现出在1520-1565nm区域具有负斜率的色散相对波长关系，以补偿丢弃光纤的色散对波长斜率。 色散补偿光纤可以有利地与光纤放大器组合以形成补偿器，该补偿器适于克服由色散补偿光纤引入到系统中的衰减。 在一个实施例中，色散补偿光纤也是分布式光纤放大器。
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公开(公告)号：EP0504479B1
公开(公告)日：1996-10-30
申请号：EP91120225.7
申请日：1991-11-27
申请人： Corning Incorporated
CPC分类号： G02B6/29332 , G02B6/2835 , H01S3/06754
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公开(公告)号：EP0440049A1
公开(公告)日：1991-08-07
申请号：EP91100548.6
申请日：1991-01-18
申请人： CORNING INCORPORATED
发明人： Lerminiaux, Christian , Laborde, Pascale , Benveniste, Carlos Obadia Nissim , Hall, Douglas Warren , Jansen, Richard
IPC分类号： H01S3/06
CPC分类号： H01S3/0632
摘要： An optical signal amplifier with a waveguide path integrated into a glass body (7) that is doped with optically active material. The signal to be amplified is transmitted through the waveguide (1') and the pump power (8) is coupled into the waveguide at one end. The waveguide (1') comprises closely spaced adjacent guide lengths in the form of a spiral, zigzag paths between mirrors (10), or parallel paths with connecting semicircles (12) at alternating ends of succeeding pairs of paths.
摘要翻译： 一种光信号放大器，其具有集成到掺杂有光学活性材料的玻璃体（7）中的波导路径。 要放大的信号通过波导（1'）传输，泵浦功率（8）在一端耦合到波导中。 波导（1'）包括在反射镜（10）之间呈螺旋形，之字形路径形式的紧密间隔的相邻引导长度，或者在后续对路径的交替端连接半圆（12）的平行路径。
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10.发明公开
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
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.
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