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公开(公告)号：US5956443A
公开(公告)日：1999-09-21
申请号：US992396
申请日：1997-12-17
CPC分类号： G02B6/2835 , G02B6/2856
摘要： A waveguide fiber coupler including a tubular element surrounding the coupling region wherein sealed elongated open regions are formed between the fused waveguide surfaces which form a part of the coupler and the tubular element. The coupler exhibits improved properties due to the presence of the elongated open regions. The sealing of the elongated open regions provides for improved environmental stability of the coupler.
摘要翻译： 一种波导光纤耦合器，包括围绕耦合区域的管状元件，其中在形成耦合器和管状元件的一部分的熔融波导表面之间形成密封的细长开口区域。 由于存在细长的开放区域，耦合器表现出改进的性能。 细长开放区域的密封提供了耦合器的改善的环境稳定性。
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公开(公告)号：US06307990B1
公开(公告)日：2001-10-23
申请号：US09876192
申请日：2001-06-06
申请人： Joel P. Carberry , Gang Chen , Peter Knowles , Glenn E. Kohnke , William J. Miller , Robert A. Modavis , Laura A. Weller-Brophy
发明人： Joel P. Carberry , Gang Chen , Peter Knowles , Glenn E. Kohnke , William J. Miller , Robert A. Modavis , Laura A. Weller-Brophy
IPC分类号： G02B634
CPC分类号： G02B6/02209 , G02B6/02095 , G02B6/02123 , G02B6/2558
摘要： Packages for long period fiber gratings and other optical components (and methods for forming the packages) are described. According to an aspect of the invention, a hollow tube surrounding an optical fiber containing a long-period grating is collapsed in two areas, forming a seal at each end of the tube. According to another aspect of the invention, a hollow tube with a shelf section at each end surrounds an optical fiber containing a long-period grating. The hollow tube is sealed at each end with a fused frit. According to another aspect of the invention, a hollow tube surrounding an optical fiber containing a long-period grating is sealed at each end with a glass plug.
摘要翻译： 描述了长周期光纤光栅和其他光学部件的封装（以及用于形成封装的方法）。 根据本发明的一个方面，围绕包含长周期光栅的光纤的中空管在两个区域中折叠，在管的每一端形成密封。 根据本发明的另一方面，在每个端部具有搁板部分的中空管围绕包含长周期光栅的光纤。 中空管在每一端用熔融玻璃料密封。 根据本发明的另一方面，围绕包含长周期光栅的光纤的中空管在每端用玻璃塞密封。
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公开(公告)号：US06269207B1
公开(公告)日：2001-07-31
申请号：US09397690
申请日：1999-09-16
申请人： Joel P. Carberry , Gang Chen , Peter Knowles , Glenn E. Kohnke , William J. Miller , Robert A. Modavis , Laura A. Weller-Brophy
发明人： Joel P. Carberry , Gang Chen , Peter Knowles , Glenn E. Kohnke , William J. Miller , Robert A. Modavis , Laura A. Weller-Brophy
IPC分类号： G02B634
CPC分类号： G02B6/02209 , G02B6/02095 , G02B6/02123 , G02B6/2558
摘要： Packages for long period fiber gratings and other optical components (and methods for forming the packages) are described. According to an aspect of the invention, a hollow tube surrounding an optical fiber containing a long-period grating is collapsed in two areas, forming a seal at each end of the tube. According to another aspect of the invention, a hollow tube with a shelf section at each end surrounds an optical fiber containing a long-period grating. The hollow tube is sealed at each end with a fused frit. According to another aspect of the invention, a hollow tube surrounding an optical fiber containing a long-period grating is sealed at each end with a glass plug.
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公开(公告)号：US5881189A
公开(公告)日：1999-03-09
申请号：US567792
申请日：1995-12-05
CPC分类号： G02B6/2856
摘要： To make an overclad fiber optic coupler, the bare regions of a plurality of optical fibers are positioned within a glass capillary tube. The midregion of the tube is then collapsed and stretched to cause coupling between the fibers. To obtain desirable coupling characteristics, the fibers must be situated in the glass tube bore in side-by-side fashion such that the cross-sectional configuration of the fibers constitutes a given geometrical array. To ensure that the fibers are properly positioned within the glass tube, they are fed to that tube from a plurality of guide tubes, the ends of which are retained adjacent to the end of the glass tube in side-by-side fashion in the given geometrical array.
摘要翻译： 为了制造外包纤维光耦合器，多个光纤的裸露区域位于玻璃毛细管内。 然后将管的中间部分收缩并拉伸以引起纤维之间的连接。 为了获得期望的耦合特性，纤维必须以并排的方式位于玻璃管孔中，使得纤维的横截面构型构成给定的几何阵列。 为了确保纤维适当地定位在玻璃管内，它们从多个导管被供给到该管，其端部在给定的并排方式并排地保持在玻璃管的端部附近 几何阵列。
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公开(公告)号：US06301410B1
公开(公告)日：2001-10-09
申请号：US09876208
申请日：2001-06-06
申请人： Joel P. Carberry , Gang Chen , Peter Knowles , Glenn E. Kohnke , William J. Miller , Robert A. Modavis , Laura A. Weller-Brophy
发明人： Joel P. Carberry , Gang Chen , Peter Knowles , Glenn E. Kohnke , William J. Miller , Robert A. Modavis , Laura A. Weller-Brophy
IPC分类号： G02B634
CPC分类号： G02B6/02209 , G02B6/02095 , G02B6/02123 , G02B6/2558
摘要： Packages for long period fiber gratings and other optical components (and methods for forming the packages) are described. According to an aspect of the invention, a hollow tube surrounding an optical fiber containing a long-period grating is collapsed in two areas, forming a seal at each end of the tube. According to another aspect of the invention, a hollow tube with a shelf section at each end surrounds an optical fiber containing a long-period grating. The hollow tube is sealed at each end with a fused frit. According to another aspect of the invention, a hollow tube surrounding an optical fiber containing a long-period grating is sealed at each end with a glass plug.
摘要翻译： 描述了长周期光纤光栅和其他光学部件的封装（以及用于形成封装的方法）。 根据本发明的一个方面，围绕包含长周期光栅的光纤的中空管在两个区域中折叠，在管的每一端形成密封。 根据本发明的另一方面，在每个端部具有搁板部分的中空管围绕包含长周期光栅的光纤。 中空管在每一端用熔融玻璃料密封。 根据本发明的另一方面，围绕包含长周期光栅的光纤的中空管在每端用玻璃塞密封。
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公开(公告)号：US06278821B1
公开(公告)日：2001-08-21
申请号：US09374738
申请日：1999-08-13
IPC分类号： G02B626
CPC分类号： G02B6/29353 , G02B6/0218 , G02B6/02204 , G02B6/2835 , G02B6/29383 , G02B6/29398 , G02F1/3136 , G02F2201/307 , G02F2203/055 , G02F2203/585
摘要： A Mach-Zehnder interferometer for performing an optical function on a plurality of optical fibers is provided. The interferometer includes a first cane segment surrounding the optical fibers. The first cane segment forms a first optical coupling region. The interferometer also includes a second cane segment surrounding the optical fibers. The second cane segment forms a second optical coupling region. A phase shift region is formed by a discontinuity between the first and second cane segments for exposing the optical fibers. The optical fibers are suspended between the first and second cane segments within the phase shift region. A substrate is provided for supporting the optical fibers within the phase shift region.
摘要翻译： 提供了一种用于在多根光纤上执行光学功能的马赫 - 曾德干涉仪。 干涉仪包括围绕光纤的第一拐杖段。 第一甘蔗段形成第一光耦合区域。 干涉仪还包括围绕光纤的第二甘蔗段。 第二甘蔗段形成第二光耦合区域。 相移区域由第一和第二拐点部分之间的不连续部分形成，用于露出光纤。 光纤悬浮在相移区域内的第一和第二拐点段之间。 提供了用于在相移区域内支撑光纤的基板。
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公开(公告)号：US5339372A
公开(公告)日：1994-08-16
申请号：US75129
申请日：1993-06-09
CPC分类号： G02B6/2856
摘要： A low loss fiber optic coupler of the type wherein a plurality of single-mode optical fibers are fused together along a portion of the lengths thereof to form a coupling region. Each fiber includes a core and a cladding, the lowest refractive index of the fiber claddings being n.sub.2. Each of the output fibers of the coupler further includes a surface region of refractive index n.sub.4 that inhibits the coupling of light to lossy composite modes, n.sub.4 being lower than n.sub.2.
摘要翻译： 一种低损耗光纤耦合器，其中多个单模光纤沿其长度的一部分熔合在一起以形成耦合区域。 每个光纤包括芯和包层，光纤包层的最低折射率为n2。 耦合器的每个输出光纤还包括折射率为n4的表面区域，其阻止光耦合到有损复合模式，n4低于n2。
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公开(公告)号：US5011251A
公开(公告)日：1991-04-30
申请号：US447808
申请日：1989-12-08
CPC分类号： G02B6/2835 , G02B6/2856
摘要： An achromatic fiber optic coupler of the type wherein first and second single-mode optical fibers, each having a core and a cladding, are fused together along a portion of the lengths thereof to form a coupling region. A matrix glass of lower index than the fiber claddings surrounds the coupling region. The fiber diameters are smaller in the coupling region than in the remainder of the fibers. The refractive index n.sub.2 of the cladding of the first fiber is different from the refractive index n.sub.2 ' of the cladding of the second fiber, the difference between the refractive indices n.sub.2 and n.sub.2 ' being such that the coupler exhibits very little change in coupling ratio with wavelength over a band of wavelengths.
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公开(公告)号：US06272268B1
公开(公告)日：2001-08-07
申请号：US09331711
申请日：1999-06-23
IPC分类号： G02B626
CPC分类号： G02B6/2835 , G02B6/02214 , G02B6/0285 , G02B6/03633 , G02B6/03638 , G02B6/03644 , G02B6/29332 , G02B6/29352 , G02B6/29392
摘要： A tapered optical fiber coupler includes a first fiber with a core (11) and a cladding (12) and a second fiber with a core (21), an inner cladding (22) and an outer cladding (23). In the stretched, coupling regions of the device, the coupling regions (44, 50) of the fibers form of coupling region waveguides with dispersion curves crossing one another at a preselected operating wavelength. The one or more claddings of each fiber has a monotonic decreasing refractive index distribution, and the refractive index distributions of the claddings (12, 22, 23) are different from one another. Coupling of light from one another occurs only in the narrow band of wavelengths surrounding the operating wavelengths. The outside diameters and core diameters of the fibers may be identical to one another and identical to those of standard optical fibers. Thus, the device can be connected in an optical system.
摘要翻译： 锥形光纤耦合器包括具有芯（11）和包层（12）的第一光纤和具有芯（21）的第二光纤，内包层（22）和外包层（23）。 在装置的拉伸的耦合区域中，纤维的耦合区域（44,45）形成耦合区域波导，其中色散曲线在预选的工作波长处彼此交叉。 每个纤维的一个或多个包层具有单调递减的折射率分布，并且包层（12,22,23）的折射率分布彼此不同。 来自彼此的光的耦合仅发生在围绕工作波长的窄波长带内。 纤维的外径和纤芯直径可以彼此相同，与标准光纤相同。 因此，该装置可以连接在光学系统中。
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公开(公告)号：US5179603A
公开(公告)日：1993-01-12
申请号：US671075
申请日：1991-03-18
IPC分类号： G02F1/35 , G02B6/28 , G02B6/287 , G02B6/34 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/094 , H01S3/10
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 .lambda..sub.s couples between them, and most of the light power of a wavelength .lambda..sub.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 .lambda..sub.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 n.sub.3 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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