会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Arrangement of optical fiber segments for minimizing effect of nonlinearities
    • 大容量光纤网络在1.4uM区域内运行
    • US06205268B1
    • 2001-03-20
    • US09255454
    • 1999-02-19
    • Andrew Roman ChraplyvyBernard Raymond EichenbaumGary Patrick EmeryJanice Bilecky HaberDavid KalishRaymond Bradfield Kummer
    • Andrew Roman ChraplyvyBernard Raymond EichenbaumGary Patrick EmeryJanice Bilecky HaberDavid KalishRaymond Bradfield Kummer
    • G02B628
    • H04B10/2916
    • A high-capacity optical fiber network [100, 200] includes wavelength-division multiplexing (WDM) within the 1.4 micron (&mgr;m) wavelength region (i.e., 1335-1435 nm). Such a system includes optical fiber [130] whose peak loss in the 1.4 &mgr;m region is less than its loss at 1310 nm. The optical fiber has a zero dispersion wavelength (&lgr;0) at about 1310 nm, and linear dispersion between about 1.5 and 8.0 ps/nm-km within the 1.4 &mgr;m region. At least three WDM channels operate at 10 Gb/s in the 1.4 &mgr;m wavelength region and have a channel separation of 100 GHz. In one illustrative embodiment of the invention, a broadcast television channel, having amplitude modulated vestigial sideband modulation, simultaneously operates in the 1.3 &mgr;m region (i.e., 1285-1335 nm) and/or the 1.55 &mgr;m region (i.e., 1500-1600 nm). In another embodiment of the invention, 16 digital data channels are multiplexed together in the 1.55 &mgr;m region, each channel operating at about 2.5 Gb/s. Raman amplifiers [103, 113] are used for amplification in the 1.3 &mgr;m and the 1.4 &mgr;m wavelength regions, whereas an Erbium amplifier [123] is used for amplification in the 1.55 &mgr;m wavelength region.
    • 高容量光纤网络[100,200]包括在1.4微米(母)波长区域(即1335-1435nm)内的波分复用(WDM)。 这种系统包括其在1.4mum区域的峰值损耗小于其在1310nm处的损耗的光纤[130]。 光纤在约1310nm处具有零色散波长(lambd0),在1.4mum区域内具有约1.5和8.0ps / nm-km之间的线性色散。 至少三个WDM通道在1.4 mum波长区域以10 Gb / s运行,并且通道间隔为100 GHz。 在本发明的一个说明性实施例中,具有幅度调制残留边带调制的广播电视频道在1.3mum区域(即1285-1335nm)和/或1.55mum区域(即,1500-1600nm)中同时工作, 。 在本发明的另一个实施例中,在1.55mum区域中将16个数字数据信道多路复用在一起,每个信道以约2.5Gb / s的速率工作。 拉曼放大器[103,113]用于1.3μm和1.4μm波长区域的放大,而使用铒放大器[123]在1.55μm波长区域进行放大。
    • 7. 发明授权
    • Method of making an optical fiber using preform dehydration in an environment of chlorine-containing gas, fluorine-containing gases and carbon monoxide
    • 在含氯气体,含氟气体和一氧化碳的环境中制备使用预成型脱水的光纤的方法
    • US06776012B2
    • 2004-08-17
    • US09891903
    • 2001-06-26
    • Kai H ChangDavid KalishThomas John Miller
    • Kai H ChangDavid KalishThomas John Miller
    • C03B37027
    • C03C25/607C03B37/0142C03B37/01446C03B2207/36C03B2207/38C03C13/047C03C25/00G02B6/02G02B6/4492Y02P40/57
    • Embodiments of the invention include a method for making optical fiber having reduced aging or hydrogen aging loss over the life of the fiber and optical fiber systems including such optical fibers. The method includes the steps of dehydrating an optical fiber glass core rod in a first environment including oxygen and at least one of chlorine-containing gases, fluorine-containing gases and carbon monoxide; and adjusting the oxygen stoichiometry of the first environment so that it is neither oxygen-rich nor oxygen-deficient. Improved silicon-oxygen stoichiometry during one or more preform manufacturing steps reduces the amount of Si defects generated in the optical fiber preform. Also, deuterium exposure of optical fiber drawn from the preform reduces the likelihood of having atomic defects such as Si defects in the optical fiber that, over time, attract and bond with hydrogen atoms to form molecules that contribute to increased water absorption loss. The inventive method produces optical fibers with improved transmission characteristics, e.g., optical fibers made by methods according to embodiments of the invention have transmission loss at 1385 nanometers that is less than 0.33 dB/km and the aging loss increase thereafter is less than 0.04 dB/km.
    • 本发明的实施例包括一种制造光纤的寿命中具有降低的老化或氢老化损耗的方法以及包括这种光纤的光纤系统。 该方法包括在包括氧和含氯气体,含氟气体和一氧化碳中的至少一种的第一环境中使光纤玻璃芯棒脱水的步骤; 并调节第一环境的氧化学计量,使其既不富氧也不氧缺乏。 在一个或多个预成型件制造步骤期间改进的硅 - 氧化学计量减少了在光纤预制件中产生的Si缺陷的量。 此外,从预成型件汲取的光纤的氘暴露减少了具有诸如光纤中的Si缺陷的原子缺陷的可能性,随着时间的推移,它们吸引并与氢原子键合形成有助于增加吸水损失的分子。 本发明的方法产生具有改进的传输特性的光纤,例如,通过根据本发明的实施例的方法制造的光纤具有小于0.33dB / km的1385纳米的传输损耗,此后的老化损耗增加小于0.04dB / 公里。
    • 10. 发明授权
    • Large-effective-area inverse dispersion compensating fiber, and a transmission line incorporating the same
    • 大面积反向色散补偿光纤,以及包含该光纤的传输线
    • US06959137B2
    • 2005-10-25
    • US10459038
    • 2003-06-11
    • David KalishRobert Lingle, Jr.David W. PeckhamYi Sun
    • David KalishRobert Lingle, Jr.David W. PeckhamYi Sun
    • G02B6/036H04B10/02H04B10/18G02B6/02
    • G02B6/02009G02B6/02261G02B6/03611G02B6/03688
    • An inverse dispersion fiber having a large effective area and a transmission system that incorporates the fiber for providing dispersion and dispersion slope compensation in a transmission fiber. The large-effective-area inverse dispersion optical fiber (IDF) has a negative dispersion and a negative dispersion slope. The effective area, Aeff, of the IDF preferably is greater than approximately 31 micrometers squared (μm2) at a transmission wavelength of approximately 1550 nm. The large-effective-area IDF is suitable for use with super-large-effective-area (SLA) transmission fiber for compensating dispersion in the SLA transmission fiber while reducing nonlinear effects between wavelength channels and cabling loss, which is especially advantageous in transoceanic and long-haul terrestrial systems. These nonlinear effects are inversely related to the effective area of the fiber (i.e., nonlinearities˜1/Aeff). Thus, an increase in the effective area of the fiber translates into a decrease in nonlinear interactions, which increases bandwidth capabilities and limits signal degradation. Furthermore, the large-effective-area IDF of the present invention has very desirable transmission properties. The present invention also provides a transmission system comprising at least one of the large-effective-area IDF optical fibers of the present invention. Furthermore, Aeff can be made large without having to increase the ratio, Ra, of the diameter of the core to the diameter of the trench region.
    • 具有大的有效面积的反向色散光纤和包含用于在传输光纤中提供色散和色散斜率补偿的光纤的传输系统。 大面积反向色散光纤(IDF)具有负色散和负色散斜率。 在大约1550nm的透射波长下,IDF的有效面积优选大于约31微米平方(mum-SUP> 2)。 大面积IDF适用于超大面积(SLA)传输光纤,用于补偿SLA传输光纤中的色散,同时减少波长信道之间的非线性效应和布线损耗,这在跨洋和 长途陆地系统。 这些非线性效应与光纤的有效面积成反比(即,非线性〜1 / A)。 因此,光纤的有效面积的增加转化为非线性相互作用的减小,这增加了带宽能力并限制了信号衰减。 此外,本发明的大面积IDF具有非常理想的传输特性。 本发明还提供了包括本发明的大面积有效区域IDF光纤中的至少一个的传输系统。 而且,不必增加芯的直径与沟槽区域的直径的比值,就可以使得A n eff大。