ISOTOPICALLY ALTERED OPTICAL FIBER
    1.
    发明申请
    ISOTOPICALLY ALTERED OPTICAL FIBER 审中-公开
    同位素改性光纤

    公开(公告)号:WO2013101261A1

    公开(公告)日:2013-07-04

    申请号:PCT/US2012/023551

    申请日:2012-02-01

    Abstract: An optical waveguide having a cladding layer formed of high-purity glass, or a cladding layer formed of high-purity isotope-proportion modified glass, and with a core of high-purity isotope-proportion-modified glass with the index of refraction of the core glass greater than the index of refraction, of the cladding glass, said high-purity isotope-proportion-modified core material having a Si-29-isotope proportion at most 4.447 % Si-29 (atom/atom) of all silicon atoms in said core, or at least 4.90% of Si-29 (atom/atom) atoms in said core, or having a Ge-73 isotope proportion of at most 7.2% Ge-73 (atom/atom) of all germanium atoms in said core, or at least 8.18% of Ge-73 (atom/atom) of Germanium atoms in said core region.

    Abstract translation: 一种具有由高纯度玻璃形成的包层或由高纯度同位素比例改性玻璃形成的包覆层和具有折射率的高纯度同位素比例改性玻璃的芯的光波导 所述高纯度同位素比例改性核心材料的Si-29-同位素比例至多为4.447%Si-29(原子/原子)的所有硅原子, 或所述核中的至少4.90%的Si-29(原子/原子)原子,或者具有Ge-73同位素比例在所述核中的所有锗原子的至多7.2%Ge-73(原子/原子) ,或至少8.18%的Ge-73(原子/原子)的锗原子。

    LOW BEND LOSS OPTICAL FIBER
    2.
    发明申请
    LOW BEND LOSS OPTICAL FIBER 审中-公开
    低弯损失光纤

    公开(公告)号:WO2013082217A1

    公开(公告)日:2013-06-06

    申请号:PCT/US2012/066949

    申请日:2012-11-29

    Abstract: According to some embodiments a single mode fiber includes: a germania doped central core region having outer radius r 1 and relative refractive index Δ 1 ; and a cladding region comprising (i) a first inner cladding region having an outer radius r 2 > 6 microns and relative refractive index Δ 2 and 0.3≤r 1 /r 2 ≤0.85; and (ii) a second inner cladding region having an outer radius r 3 > 9 microns and comprising a minimum relative refractive index Δ 3 , wherein said second inner cladding region has at least one region with a relative refractive index delta that becomes more negative with increasing radius; and (iii) an outer cladding region surrounding the inner cladding region and comprising relative refractive index Δ 4 , wherein Δ 1 > Δ 2 > Δ 3 , Δ 3 4 .

    Abstract translation: 根据一些实施例,单模光纤包括:具有外半径r1和相对折射率Delta1的掺杂锗的中心核心区域; 包括区域,包括(i)具有外半径r2> 6微米和相对折射率Δ2和0.3 <= r1 / r2 <= 0.85的第一内包层区域; 和(ii)外半径r3> 9微米并且包括最小相对折射率Delta3的第二内包层区域,其中所述第二内包层区域具有至少一个具有随着半径增加而变得更负的相对折射率Δ的区域 ; 和(iii)围绕内部包层区域的外包层区域,并且包括相对折射率Delta4,其中Delta1> Delta2> Delta3,Delta3Δ4。

    LARGE EFFECTIVE AREA, LOW KAPPA, DISPERSION COMPENSATING OPTICAL FIBER AND TELECOMMUNICATION SPAN INCLUDING SAME
    5.
    发明申请
    LARGE EFFECTIVE AREA, LOW KAPPA, DISPERSION COMPENSATING OPTICAL FIBER AND TELECOMMUNICATION SPAN INCLUDING SAME 审中-公开
    大型有效区域,低KAPPA,补偿光纤和包括其中的电信范围

    公开(公告)号:WO2005015279A1

    公开(公告)日:2005-02-17

    申请号:PCT/US2004/019157

    申请日:2004-06-17

    Abstract: A dispersion compensating optical fiber for use in a high data rate telecommunications span or link. The dispersion compensating optical fiber in accordance with the invention provides excellent compensation of total dispersion over a range of wavelengths (e.g., 1527-1567 nm), thus minimizing signal distortion in wavelength division multiplexed systems. The dispersion compensating fiber has a refractive index profile with a central core segment having an inner peak with a i%, an outer peak with 1%, and a trough with a t% less than both i% and 1%, a moat segment with a 2%, and a ring segment with a 3%. Preferably, t% and 3% are greater than 2%. Also disclosed is an optical transmission span having residual dispersion less than +/-25 ps/km for 100 km of transmission fiber over a wavelength band of 1527-1567 nm.

    Abstract translation: 用于高数据速率电信跨度或链路的色散补偿光纤。 根据本发明的色散补偿光纤在波长范围(例如,1527-1567nm)上提供了对总色散的极好补偿,从而使波分复用系统中的信号失真最小化。 色散补偿光纤具有折射率分布,其中心芯片段具有ai%的内部峰值,具有1%的外部峰值和具有小于i%和1%的谷值的谷值,具有2 %和3%的环段。 优选地,t%和3%大于2%。 还公开了对于在1527-1567nm的波长带上的100km传输光纤的残余色散小于+/- 25ps / km的光传输跨度。

    OPTICAL FIBER FOR WDM TRANSMISSION
    6.
    发明申请
    OPTICAL FIBER FOR WDM TRANSMISSION 审中-公开
    光纤传输光纤

    公开(公告)号:WO01065287A1

    公开(公告)日:2001-09-07

    申请号:PCT/EP2001/002313

    申请日:2001-03-01

    Abstract: A half-dispersion-shifted single mode optical transmission fiber (HDSF) (78, 80; 68, 120) has a core and a cladding. The core comprises an inner core (70, 82; 60, 122) with a first refractive-index difference and a first glass layer (72, 84; 64, 126) surrounding the inner core and having a second refractive-index difference. The HDSF fiber has a peak refractive index difference of less than or equal to about 0.0140, a zero-dispersion wavelength greater than 1450 nm and lower than 1500 nm, a dispersion value of between about 6 and 11 ps/nm/km at an operating wavelength of about 1560 nm and an effective area of at least 60 mu m . The cabled HDSF fiber has cutoff wavelength of less than about 1500 nm. An optical transmission line (14; 94) comprises a first span (16, 96) including at least one single-mode fiber having a negative dispersion at an operating wavelength and a second span (18) coupling to the first span, the second span having at least one HDSF fiber, the positive dispersion of the second span compensating the negative dispersion of the first span such that the cumulative dispersion across the first and second spans is approximately zero.

    Abstract translation: 半色散单模光纤(HDSF)(78,80,68,120)具有芯和包层。 芯包括具有第一折射率差的内芯(70,82; 60,122)和围绕内芯并具有第二折射率差的第一玻璃层(72,84,66,126)。 HDSF光纤具有小于或等于约0.0140的峰值折射率差异,大于1450nm且低于1500nm的零色散波长,在操作时约6至11ps / nm / km之间的色散值 波长约1560nm,有效面积至少为60μm2。 有线HDSF光纤具有小于约1500nm的截止波长。 光传输线(14; 94)包括第一跨距(16,96),其包括在工作波长处具有负色散的至少一个单模光纤和耦合到第一跨度的第二跨度(18),第二跨度 具有至少一个HDSF光纤,第二跨度的正色散补偿第一跨度的负色散,使得跨越第一和第二跨度的累积色散近似为零。

    LOW-DISPERSION OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM USING THE LOW-DISPERSION OPTICAL FIBER
    7.
    发明申请
    LOW-DISPERSION OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM USING THE LOW-DISPERSION OPTICAL FIBER 审中-公开
    使用低分散光纤的低分散光纤和光传输系统

    公开(公告)号:WO01063329A1

    公开(公告)日:2001-08-30

    申请号:PCT/JP2001/001353

    申请日:2001-02-23

    Abstract: A lower-dispersion optical fiber achieving both low wavelength dispersion in the usable wavelength region and enlarged effective core cross-section. The outer peripheral face of a center core (1) of the lower dispersion optical fiber is covered with a first side core (2) the outer peripheral face of the first side core (2) is covered with a second side core (3), and the outer peripheral face of the second side core (3) is covered with a clad (5). If the maximum refractive index of the center core (1) is n1, the minimum refractive index of the first side core (2) is n2, the maximum refractive index of the second side core (3) is n3, and the refractive index of the clad (5) is nc, a relation n1 > n3 > nc > n2 is satisfied. The relative refractive-index differences DELTA 1, DELTA 2, and DELTA 3 of the maximum refractive index of the center core (1), and the minimum refractive index of the first side core (2) to tose of the clad (5) are, respectively, in the ranges of 0.4 % ≤ DELTA 1 ≤ 0.7 %, -0.30 % ≤ DELTA 2 ≤ -0.05 %, and 0.2 % ≤ DELTA 3.

    Abstract translation: 一种低分散光纤,其在可用波长区域中实现低波长色散并且扩大了有效的核心横截面。 下分散光纤的中心芯(1)的外周面被第一侧芯(2)覆盖,第一侧芯(2)的外周面被第二侧芯(3)覆盖, 并且第二侧芯(3)的外周面用包层(5)覆盖。 如果中心纤芯(1)的最大折射率为n1,则第一侧芯(2)的最小折射率为n2,第二侧芯(3)的最大折射率为n3,折射率 包层(5)为nc,满足关系n1> n3> nc> n2。 中心芯(1)的最大折射率的相对折射率差DELTA1,DELTA2和DELTA3以及第一侧芯(2)对包层(5)的折射的最小折射率是 ,分别为0.4%≤ΔTATA≤0.7%,-0.30%≤ΔTATA≤0.05%,0.2%≤ΔTATA的范围。

    NEGATIVE DISPERSION SINGLE MODE WAVEGUIDE FIBER
    8.
    发明申请
    NEGATIVE DISPERSION SINGLE MODE WAVEGUIDE FIBER 审中-公开
    负离散单模波导光纤

    公开(公告)号:WO01018566A2

    公开(公告)日:2001-03-15

    申请号:PCT/US2000/020645

    申请日:2000-07-28

    Abstract: A negative total dispersion waveguide fiber having low attenuation and compresses the launched signal pulse when the laser is positively chirped. The laser is provided at optimum bias, which results in positive chirp, but no dispersion penalty is incurred in the link. The waveguide fiber is used a dispersion compensating fiber in a high performance multiplexed telecommunications link. Curve (96) in figure 8 representative of a link comprising fiber having negative dispersion waveguide fibers. Curve (98) is representative of a link comprising fiber having negative dispersion at 1550 nm in accordance with the invention. Curve (100) is representative of a link comprising fiber in accordance with the invention and a laser source that is even more positively chirped thanthe laser to generate curve (98).

    Abstract translation: 具有低衰减的负总色散波导光纤并且当激光器被正啁啾时压缩所发射的信号脉冲。 以最佳偏压提供激光,这导致正线性调频脉冲,但在链路中不产生色散损失。 在高性能复用电信链路中使用波导光纤作为色散补偿光纤。 图8中的曲线(96)表示包括具有负色散波导光纤的光纤的链路。 曲线(98)代表根据本发明的包括在1550nm具有负色散的光纤的链路。 曲线(100)代表包括根据本发明的光纤的链路和激光源甚至更激烈地啁啾以产生曲线(98)的激光源。

    LARGE EFFECTIVE AREA FIBER HAVING A LOW TOTAL DISPERSION SLOPE
    9.
    发明申请
    LARGE EFFECTIVE AREA FIBER HAVING A LOW TOTAL DISPERSION SLOPE 审中-公开
    具有低总排放坡度的大型有效区域纤维

    公开(公告)号:WO00065387A1

    公开(公告)日:2000-11-02

    申请号:PCT/US2000/007969

    申请日:2000-03-23

    Abstract: Disclosed is a single mode optical waveguide fiber having a relatively large effective area and good bend resistance. The waveguide fiber is characterized by a segmented core having a central segment (30) and at least one annular segment (32, 34, 36) surrounding the central segment. At least one segment has a negative relative refractive index where the reference refractive index is taken as the index of the cladding. The total dispersion of the fiber is positive for wavelengths above about 1500 nm, dispersion slope is typically less than about 0.08 ps/nm -km, and induced attenuation under pin array bend testing is typically less than 5 dB/km.

    Abstract translation: 公开了具有相对较大的有效面积和良好的抗弯曲性的单模光纤。 波导纤维的特征在于具有中心段(30)的分段铁芯和围绕中心段的至少一个环形段(32,34,36)。 至少一个段具有负的相对折射率,其中参考折射率被作为包层的折射率。 对于高于约1500nm的波长,光纤的总色散为正,色散斜率通常小于约0.08ps / nm 2-km,并且引脚阵列弯曲测试下的诱导衰减通常小于5dB / km。

    BROADBAND PULSE-RESHAPING OPTICAL FIBER
    10.
    发明申请
    BROADBAND PULSE-RESHAPING OPTICAL FIBER 审中-公开
    宽带脉冲修复光纤

    公开(公告)号:WO00033114A2

    公开(公告)日:2000-06-08

    申请号:PCT/US1999/026686

    申请日:1999-11-10

    Abstract: A pulse-reshaping optical fiber having a core with refractive index nc surrounded by a cladding layer, the diameter of the core changing monotonically along the length of the fiber. The core includes a central region having a maximum refractive index n1 and a moat region disposed radially adjacent to the central region. The moat region has a minimum refractive index n2 which is sufficiently low that the index delta DELTA 2 of the moat region with respect to nc is not greater than 0.1 %. The moat region affects the change in dispersion with respect to fiber cladding diameter, as well as providing the pulse-reshaping fiber with low dispersion versus wavelength slope. The pulse-reshaping fiber is particularly useful in association with optical transmission systems where high transmission rates and narrow pulse widths are desired, including components such as high pulse rate wavelentgh-division-multiplexers (WDMs) and optical regenerators.

    Abstract translation: 具有折射率为nc的芯的脉冲整形光纤被包层围绕,芯的直径沿光纤的长度单调变化。 芯包括具有最大折射率n1的中心区域和径向相邻于中心区域设置的护城河区域。 护城河区域具有足够低的最小折射率n2,使得护城河区域的相对于nc的折射率ΔDELTA 2不大于0.1%。 护环区域影响相对于纤维包层直径的色散变化,以及提供具有低色散对波长斜率的脉冲整形光纤。 脉冲整形光纤特别适用于需要高传输速率和窄脉冲宽度的光传输系统,包括诸如高脉冲速率波分复用器(WDM)和光学再生器的组件。

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