-
公开(公告)号:US08995803B2
公开(公告)日:2015-03-31
申请号:US13759198
申请日:2013-02-05
CPC分类号: G02B6/268 , G02B6/0288 , G02B6/0365
摘要: An optical fiber link suitable for use in a mode division multiplexing (MDM) optical transmission system is disclosed. The link has a first optical fiber having a core which supports the propagation and transmission of an optical signal with X LP modes at a wavelength of 1550 nm, wherein X is an integer greater than 1 and less than or equal to 20, the first fiber having a positive differential mode group delay between the LP01 and LP11 modes at a wavelength between 1530-1570. The link also has a second optical fiber having a core which supports the propagation and transmission of an optical signal with Y LP modes at a wavelength of 1550 nm, wherein Y is an integer greater than 1 and less than or equal to 20, said optical fiber having a negative differential mode group delay between the LP01 and LP11 modes at a wavelength between 1530-1570.
摘要翻译: 公开了适用于模分多路复用(MDM)光传输系统的光纤链路。 该链路具有第一光纤,其具有支持在1550nm的波长下具有X LP模式的光信号的传播和传输的核心,其中X是大于1且小于等于20的整数,第一光纤 在1530-1570之间的波长在LP01和LP11模式之间具有正差分模式组延迟。 该链路还具有第二光纤,其具有支持在1550nm的波长下具有Y LP模式的光信号的传播和传输的核,其中Y是大于1且小于或等于20的整数,所述光 光纤在1530-1570之间的波长在LP01和LP11模式之间具有负差模模式延迟。
-
公开(公告)号:US20130216181A1
公开(公告)日:2013-08-22
申请号:US13759198
申请日:2013-02-05
IPC分类号: G02B6/26
CPC分类号: G02B6/268 , G02B6/0288 , G02B6/0365
摘要: An optical fiber link suitable for use in a mode division multiplexing (MDM) optical transmission system is disclosed. The link has a first optical fiber having a core which supports the propagation and transmission of an optical signal with X LP modes at a wavelength of 1550 nm, wherein X is an integer greater than 1 and less than or equal to 20, the first fiber having a positive differential mode group delay between the LP01 and LP11 modes at a wavelength between 1530-1570. The link also has a second optical fiber having a core which supports the propagation and transmission of an optical signal with Y LP modes at a wavelength of 1550 nm, wherein Y is an integer greater than 1 and less than or equal to 20, said optical fiber having a negative differential mode group delay between the LP01 and LP11 modes at a wavelength between 1530-1570.
摘要翻译: 公开了适用于模分多路复用(MDM)光传输系统的光纤链路。 该链路具有第一光纤,其具有支持在1550nm的波长下具有X LP模式的光信号的传播和传输的核心,其中X是大于1且小于等于20的整数,第一光纤 在1530-1570之间的波长在LP01和LP11模式之间具有正差分模式组延迟。 该链路还具有第二光纤,其具有支持在1550nm的波长下具有Y LP模式的光信号的传播和传输的核,其中Y是大于1且小于或等于20的整数,所述光 光纤在1530-1570之间的波长在LP01和LP11模式之间具有负差模模式延迟。
-
公开(公告)号:US09481599B2
公开(公告)日:2016-11-01
申请号:US13331610
申请日:2011-12-20
申请人: Scott Robertson Bickham , Oleksandr Kogan , Ming-Jun Li , Snigdharaj Kumar Mishra , Pushkar Tandon
发明人: Scott Robertson Bickham , Oleksandr Kogan , Ming-Jun Li , Snigdharaj Kumar Mishra , Pushkar Tandon
IPC分类号: C03B37/014 , G02B6/028 , C03B37/025
CPC分类号: C03B37/01413 , C03B37/0253 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2201/32 , C03B2203/23 , C03B2203/26 , C03B2205/40 , G02B6/0288 , Y02P40/57
摘要: A method of making a multimode optical fiber is disclosed. In one embodiment the method includes calculating a core radius that maximizes the bandwidth of the multimode optical fiber wherein the effect of draw tension is accounted for. The embodiments herein illustrate how core radius can be tuned so the time delay of the outermost guided mode group is reduced. The resultant core radius may be targeted for a value off-nominal from what would be expected for a particular commercial optical fiber type.
摘要翻译: 公开了制造多模光纤的方法。 在一个实施例中,该方法包括计算最大化多模光纤的带宽的纤芯半径,其中考虑拉伸张力的影响。 这里的实施例示出了如何调整芯部半径,使得最外面的引导模式组的时间延迟减小。 所得到的芯部半径可以是针对特定商业光纤类型的预期值的标称值。
-
公开(公告)号:US08977092B2
公开(公告)日:2015-03-10
申请号:US13553899
申请日:2012-07-20
CPC分类号: G02B6/0288 , G02B6/02023 , G02B6/0281 , G02B6/0365
摘要: One exemplary multimode optical fiber includes a graded index glass core having a diameter in the range of 41 microns to 80 microns, a graded index having an alpha less than 2.04 and a maximum relative refractive index in the range between 0.6% and 1.8%. The cladding includes a depressed-index annular portion. The fiber has an overfilled bandwidth greater than 2.5 GHz-km at at least one wavelength between 1200 nm and 1700 nm.
摘要翻译: 一个示例性多模光纤包括直径在41微米至80微米范围内的分级折射率玻璃芯,具有α小于2.04的分级折射率和0.6%至1.8%范围内的最大相对折射率。 包层包括凹陷折射率的环形部分。 该纤维在1200nm至1700nm之间的至少一个波长处具有大于2.5GHz-km的过满的带宽。
-
公开(公告)号:US08693834B2
公开(公告)日:2014-04-08
申请号:US13420037
申请日:2012-03-14
IPC分类号: H04B10/00
CPC分类号: G02B6/0288 , G02B6/02019 , G02B6/02023 , G02B6/03627 , G02B6/0365 , H04J14/04
摘要: A few mode optical fiber suitable for use in a mode division multiplexing (MDM) optical transmission system is disclosed. The optical fiber has a graded-index core with a radius R1 in the range from 8 μm to 14 μm, an alpha value greater than or equal to about 2.3 and less than about 2.7 at a wavelength of 1550 nm, and a maximum relative refractive index Δ1MAX from about 0.3% to about 0.6% relative to the cladding. The optical fiber also has an effective area greater than about 90 μm2 and less than about 160 μm2. The core and cladding support only the LP01 and LP11 modes at wavelengths greater than 1500 nm. The cladding has a maximum relative refractive index Δ4MAX such that Δ1MAX>Δ4MAX, and the differential group delay between the LP01 and LP11 modes is less than about 0.5 ns/km at a wavelength of 1550 nm.
摘要翻译: 公开了适用于模分多路复用(MDM)光传输系统的几种模式光纤。 光纤具有半径R1在8μm至14μm范围内的梯度折射率芯,在1550nm波长处大于或等于约2.3且小于约2.7的α值,以及最大相对折射率 指数&Dgr; 1MAX,相对于包层为约0.3%至约0.6%。 该光纤还具有大于约90μm2且小于约160μm2的有效面积。 芯和包层只支持波长大于1500 nm的LP01和LP11模式。 包层具有最大相对折射率&Dgr; 4MAX,使得&Dgr; 1MAX>&Dgr; 4MAX,并且LP01和LP11模式之间的差分群延迟在1550nm的波长处小于约0.5ns / km。
-
公开(公告)号:US20120186304A1
公开(公告)日:2012-07-26
申请号:US13440375
申请日:2012-04-05
IPC分类号: C03B37/025
CPC分类号: G02B6/02357 , C03B37/02781 , C03B2203/14 , C03B2203/23 , G02B6/02333 , G02B6/0365
摘要: Microstructured optical fiber for single-moded transmission of optical signals, the optical fiber including a core region and a cladding region, the cladding region including an annular void-containing region that contains non-periodically disposed voids. The optical fiber provides single mode transmission and low bend loss.
摘要翻译: 用于光信号单模传输的微结构光纤,所述光纤包括芯区域和包层区域,所述包层区域包括含有非周期性布置的空隙的环形含空隙区域。 光纤提供单模传输和低弯曲损耗。
-
公开(公告)号:US07903917B2
公开(公告)日:2011-03-08
申请号:US12612348
申请日:2009-11-04
申请人: Scott Robertson Bickham , Dana Craig Bookbinder , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
发明人: Scott Robertson Bickham , Dana Craig Bookbinder , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
IPC分类号: G02B6/02
CPC分类号: G02B6/0365 , G02B6/02014 , G02B6/02266 , G02B6/03611 , Y10T428/31504
摘要: Optical waveguide fiber that is bend resistant and single mode at 1260 nm and at higher wavelengths. The optical fiber includes a core of radius R1 and cladding, the cladding having an annular inner region of radius R2, an annular ring region, and an annular outer region. The annular ring region starts at R2, and the ratio R1/R2 is greater than 0.40.
摘要翻译: 光纤光纤在1260 nm和更高波长下具有抗弯曲和单模光纤。 光纤包括半径为R1和包层的芯,该包层具有半径为R2的环形内部区域,环形环区域和环形外部区域。 环状区域从R2开始,R1 / R2的比值大于0.40。
-
公开(公告)号:US20080304800A1
公开(公告)日:2008-12-11
申请号:US12070845
申请日:2008-02-21
申请人: Scott Robertson Bickham , Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
发明人: Scott Robertson Bickham , Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan , Pushkar Tandon
IPC分类号: G02B6/02
CPC分类号: G02B6/02014 , G02B6/02019 , G02B6/02357 , G02B6/02366 , G02B6/0365 , G02B6/03661 , G02B6/03688
摘要: An optical fiber comprising: a glass core extending from a centerline to a radius R1; a glass cladding surrounding and in contact with the core, the cladding comprising:a first annular region extending from R1 to a radius R2, the first annular region comprising a radial width, W2=R2−R1, a second annular region extending from R2 to a radius R3, the second annular region comprising a radial width, W3=R3−R2, and a third annular region extending from R3 to an outermost glass radius R4; wherein (i) the core comprises a maximum relative refractive index, Δ1MAX, relative to the third annular region; (ii) wherein the first annular region comprises a radial width W2; and (iii) the second annular region comprises a minimum relative refractive index, Δ3MIN, relative to the third annular region wherein Δ1MAX>Δ2MAX>Δ3MIN, and Δ2MIN>Δ3MIN; and the core and the cladding provide a fiber with cable cutoff less than 1500 nm, dispersion at 1550 nm less than 12 ps/nm/km, effective area at 1550 nm greater than 60 μm2, and preferably greater than 70 μm2. The second annular cladding region may contain a plurality of randomly dispersed holes.
摘要翻译: 一种光纤,包括:从中心线延伸到半径R1的玻璃芯; 围绕并与芯接触的玻璃包层,所述包层包括:从R1延伸到半径R2的第一环形区域,所述第一环形区域包括径向宽度W2 = R2-R1,从R2延伸到第二环形区域 半径R3,第二环形区域包括径向宽度,W3 = R3-R2,以及从R3延伸到最外侧玻璃半径R4的第三环状区域; 其中(i)所述芯包括相对于所述第三环形区域的最大相对折射率Delta1MAX; (ii)其中所述第一环形区域包括径向宽度W2; 和(iii)第二环形区域包括相对于第三环形区域的最小相对折射率Delta3MIN,其中Delta1MAX> Delta2MAX> Delta3MIN和Delta2MIN> Delta3MIN; 并且芯和包层提供具有小于1500nm的电缆截止的光纤,在1550nm处的色散小于12ps / nm / km,在1550nm处的有效面积大于60mum2,优选大于70mum2。 第二环形包层区域可以包含多个随机分布的孔。
-
公开(公告)号:US20080279517A1
公开(公告)日:2008-11-13
申请号:US12151171
申请日:2008-05-05
申请人: Scott Robertson Bickham , Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan
发明人: Scott Robertson Bickham , Dana Craig Bookbinder , Xin Chen , Ming-Jun Li , Snigdharaj Kumar Mishra , Daniel Aloysius Nolan
IPC分类号: G02B6/028
CPC分类号: G02B6/0365 , G02B6/02019
摘要: An optical fiber according to an embodiment of the present invention comprises: a glass core extending from a centerline to a radius R1 wherein R1 is greater than about 5 μm; a glass cladding surrounding and in contact with the core, the cladding comprising: (i) a first annular region extending from the radius R1 to a radius R2, the first annular region comprising a radial width, W2=R2−R1, (ii) a second annular region extending from the radius R2 to a radius R3, and comprising a radial width, W3=R3−R2, and (iii) a third annular region surrounding the second annular region and extending from the radius R3 to an outermost glass radius R4; wherein the core comprises a maximum relative refractive index, Δ1MAX, relative to the third annular region, and wherein Δ1MAX is greater than about 0.1% and less than about 0.3%; the first annular region has a refractive index delta Δ2(r) is less than about 0.025%; wherein the second annular region comprises a minimum relative refractive index, Δ3MIN, relative to the third annular region;wherein Δ1MAX>Δ2MAX>Δ3MIN, and Δ2MIN>Δ3MIN
摘要翻译: 根据本发明实施例的光纤包括:从中心线延伸到半径R 1的玻璃芯,其中R 1>大于5μm; 围绕并与芯接触的玻璃包层,所述包层包括:(i)从半径R 1> 1半径R 2> 2延伸的第一环形区域,第一 包括径向宽度的第二环形区域,(ii)从半径R < SUB> 2 SUB>到半径R 3 3,并且包括径向宽度,W 3 3 = R 3→N < 2,和(iii)围绕第二环形区域并从半径R 3 3延伸到最外侧玻璃半径R 4的第三环形区域; 其中所述芯包括相对于所述第三环形区域的最大相对折射率,Δ1MAX1,并且其中Δ1MAX1大于约0.1%且小于约0.3% ; 第一环形区域具有小于约0.025%的折射率差ΔΔ2(r); 其中所述第二环形区域包括相对于所述第三环形区域的最小相对折射率,Δ3 NIN; 其中Delta 1MAX SUB>增量2MAX SUB>三角洲3MIN和三角洲2MIN SUB>三角洲3IN > <0; 并且其中所述芯和所述包层提供具有小于1500nm的电缆截止的光纤,并且在1550nm处的有效面积大于95μm2,并且在20℃下的弯曲损耗为<= 0.5dB / mm直径心轴。
-
公开(公告)号:US08842957B2
公开(公告)日:2014-09-23
申请号:US13432553
申请日:2012-03-28
CPC分类号: G02B6/0288 , G02B6/0281
摘要: According to some embodiments, a multimode optical fiber comprises a graded index glass core with refractive index Δ1, a maximum refractive index delta Δ1MAX, and a core radius between 10 and 40 microns; and cladding region surrounding the core comprising refractive index Δ4, wherein the fiber exhibits an overfilled bandwidth at an operating wavelength in a 900 to 1250 nm wavelength range of greater than 2.5 GHz-km. According to some embodiments the fiber exhibits an overfilled bandwidth at a wavelength between 950 and 1100 nm which is greater than 4 GHz-km. According to some embodiments the fiber exhibits an overfilled bandwidth at a wavelength between 950 and 1100 nm which is greater than 10 GHz-km.
摘要翻译: 根据一些实施例,多模光纤包括具有折射率&Dgr; 1,最大折射率δ&Dgr; 1MAX和10至40微米的芯半径的渐变折射率玻璃芯; 以及围绕包含折射率&Dgr; 4的芯的包覆区域,其中在大于2.5GHz-km的900至1250nm波长范围内的光纤在工作波长处表现出过满的带宽。 根据一些实施方案,光纤在950和1100nm之间的波长上表现出超过4GHz-km的过满的带宽。 根据一些实施例,在大于10GHz-km的波长在950和1100nm之间的光纤表现出过满的带宽。
-
-
-
-
-
-
-
-
-