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公开(公告)号：US6097512A
公开(公告)日：2000-08-01
申请号：US467915
申请日：1999-12-21
申请人： Benjamin J Ainslie , Douglas L Williams , Graeme D Maxwell , Raman Kashyap , Jonathan R Armitage
发明人： Benjamin J Ainslie , Douglas L Williams , Graeme D Maxwell , Raman Kashyap , Jonathan R Armitage
IPC分类号： G02B5/18 , C03B19/14 , C03B37/018 , C03C3/06 , C03C3/076 , C03C4/04 , C03C13/04 , G02B6/02 , G02B6/124 , G02B6/34 , G02B27/00 , G03H1/00 , G03H1/02
CPC分类号： G02B6/021 , C03B19/1453 , C03B37/01853 , C03C13/045 , C03C3/06 , C03C3/076 , C03C4/04 , G02B6/124 , C03B2201/31 , C03C2201/31 , C03C2203/50 , G02B6/02133 , Y10S359/90
摘要： Boron containing glasses are sensitive to radiation in the band 225-275 nm and therefore, B.sub.2 O.sub.3 glasses are particularly adapted to receive refractive index modulation, e.g., to make reflection gratings. Glasses containing SiO.sub.2 and B.sub.2 O.sub.3 are particularly suitable when the grating is to be localized in the cladding of a fibre. Glasses containing SiO.sub.2, GeO.sub.2 and B.sub.2 O.sub.3 are suitable when the grating is in the path region of a waveguide, e.g., in the core of a fibre.
摘要翻译： 含硼玻璃对225-275nm波段的辐射敏感，因此，B 2 O 3玻璃特别适于接收折射率调制，例如制造反射光栅。 当光栅定位在纤维的包层中时，含有SiO 2和B 2 O 3的玻璃特别适合。 当光栅位于波导的路径区域中时，例如在纤维的芯中，含有SiO 2，GeO 2和B 2 O 3的玻璃是合适的。
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2.再颁专利Optical fibre amplifier with fluorescent additive and method of amplifying signals using same 失效具有荧光添加剂的光纤放大器及使用其放大信号的方法
公开(公告)号：USRE35946E
公开(公告)日：1998-11-03
申请号：US879843
申请日：1992-05-06
IPC分类号： C03B37/018 , C03C4/00 , C03C13/04 , G02B6/00 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/16 , H01S3/17 , G02B6/02 , H01S3/00 , H01S3/30
CPC分类号： C03C4/0071 , C03B37/01838 , C03C13/04 , C03C13/045 , H01S3/06716 , C03B2201/28 , C03B2201/31 , C03B2201/36 , C03B2203/22 , H01S3/0672 , H01S3/1693
摘要： An optical fibre for use in fibre lasers has the lasing additive eg Er.sup.3+, concentrated in center of the core. Preferably the core has an inner region which contains the additive and an outer region which is dopant free. The concentration of the dopant reduces the pump threshold for a laser and improves the gain performance for a given pump power. The fibre is conveniently made in MCVD. The use of Al.sub.2 O.sub.3 in the inner zone appears to reduce loss of dopant during tube collapse.
摘要翻译： 用于光纤激光器的光纤具有激光添加剂，例如Er3 +，集中在芯的中心。 优选地，芯具有包含添加剂的内部区域和不含掺杂剂的外部区域。 掺杂剂的浓度降低了激光器的泵浦阈值，并提高了给定泵功率的增益性能。 纤维方便地用MCVD制成。 在内部区域中使用Al2O3似乎减少了管塌陷期间掺杂剂的损失。
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公开(公告)号：US5412672A
公开(公告)日：1995-05-02
申请号：US165165
申请日：1993-12-10
IPC分类号： C03C3/04 , C03B37/018 , C03C4/00 , C03C4/12 , C03C13/04 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/16 , H01S3/17 , H01S3/30
CPC分类号： C03C13/045 , C03B37/01838 , C03C13/046 , C03C4/0071 , H01S3/06716 , C03B2201/28 , C03B2201/31 , C03B2201/36 , C03B2203/23 , H01S3/0672 , H01S3/06729 , H01S3/1693
摘要： Optical wave-guides, e.g. fibres, for use as photonic amplifiers have a path region partly or, preferably, wholly composed as a silica/germania glass with 0.1 to 5000 ppm mole of Er.sup.3+ as a lasing additive and alumina to adjust the bandwidth, the Ge:Al mole ratio being more than 2.8, e.g. 1:0.001 to 0.25. It is surprising that low amounts of alumina have a useful and significant effect on the lasing bandwidth whereby frequency division multiplex is facilitated.
摘要翻译： 光波导，例如。 用作光子放大器的光纤具有部分或优选完全构成作为二氧化硅/锗纳米玻璃的路径区域，具有0.1至5000ppm摩尔Er 3+作为激光添加剂和氧化铝以调节带宽，Ge：Al摩尔比为 超过2.8，例如 1：0.001〜0.25。 令人惊奇的是，少量的氧化铝对激光带宽具有有用和显着的影响，从而便于频分复用。
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公开(公告)号：US4566754A
公开(公告)日：1986-01-28
申请号：US361093
申请日：1982-03-23
IPC分类号： C03B37/023 , C03B37/027 , C03C13/04 , G02B6/00 , C03B37/025
CPC分类号： G02B6/02276 , C03B37/023 , C03B37/027 , C03C13/045 , C03B2201/02 , C03B2201/31 , C03B2203/24 , C03B2203/36 , Y10S65/16
摘要： An optical fibre capable of monomode transmission in, and having a wavelength of zero dispersion in, the 1.55 .mu.m window and having a core comprising silica and germanium dioxide and a cladding comprising silica is drawn from an appropriate preform at a temperature in the range from 1900.degree. C. to 2000.degree. C. Fibres thus produced have low loss compared with fibres drawn at higher temperature.
摘要翻译： 在1.55μm窗口内能够单模传输并具有零色散的光纤并且具有包括二氧化硅和二氧化锗的核心以及包含二氧化硅的包层的光纤在适当的预成型件中从在 1900℃至2000℃。与在较高温度下拉伸的纤维相比，这样生产的纤维具有低损失。
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公开(公告)号：US4946251A
公开(公告)日：1990-08-07
申请号：US403069
申请日：1989-09-05
摘要： The guiding layers of optical waveguides are formed of arsenosilicate glass (ASG). By varying the arsenic content from 2 to 13 mole percent it is possible to vary the refractive index in the range 1.45 to 1.53. Pure silica or less heavily doped ASG can be used for the cladding layers. The ASG is preferably formed as the result of a heterogeneous reaction between silane and oxygen in the presence of arsine. Such a reaction can be carried out at temperatures down to 390.degree. C., allowing the ASG to be used on substrates of III-V compounds.
摘要翻译： 光波导的引导层由砷硅酸盐玻璃（ASG）形成。 通过将砷含量改变为2至13摩尔％，可以将折射率改变在1.45至1.53的范围内。 纯二氧化硅或较不重掺杂的ASG可用于包覆层。 ASG优选由于在胂的存在下硅烷和氧之间的非均相反应而形成。 这种反应可以在低于390℃的温度下进行，允许将ASG用于III-V族化合物的底物上。
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公开(公告)号：US4923279A
公开(公告)日：1990-05-08
申请号：US257101
申请日：1988-10-13
IPC分类号： C03B37/018 , C03C4/00 , C03C13/04 , G02B6/00 , H01S3/06 , H01S3/067 , H01S3/07 , H01S3/16 , H01S3/17
CPC分类号： C03C4/0071 , C03B37/01838 , C03C13/04 , C03C13/045 , H01S3/06716 , C03B2201/28 , C03B2201/31 , C03B2201/36 , C03B2203/22 , H01S3/0672 , H01S3/1693
摘要： An optical fibre for use in fibre lasers has the lasing additive eg Er.sup.3+, concentrated in center of the core. Preferably the core has an inner region which contains the additive and an outer region which is dopant free. The concentration of the dopant reduces the pump threshold for a laser and improves the gain performance for a given pump power. The fibre is conveniently made in MCVD. The use of Al.sub.2 O.sub.3 in the inner zone appears to reduce loss of dopant during tube collapse.
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公开(公告)号：US06229945B1
公开(公告)日：2001-05-08
申请号：US09372038
申请日：1999-08-11
申请人： Benjamin J Ainslie , Douglas L Williams , Graeme D Maxwell , Raman Kashyap , Jonathan R Armitage
发明人： Benjamin J Ainslie , Douglas L Williams , Graeme D Maxwell , Raman Kashyap , Jonathan R Armitage
IPC分类号： G02B602
CPC分类号： G02B6/021 , C03B19/1453 , C03B37/01853 , C03B2201/31 , C03C3/06 , C03C3/076 , C03C4/04 , C03C13/045 , C03C2201/31 , C03C2203/50 , G02B6/02133 , G02B6/124
摘要： It has been demonstrated that B containing glasses are sensitive to radiation in the band 225-275 nm and, therefore, B2O3 glasses are particularly adapted to receive refractive index modulation, e.g., to make reflection gratings. Glasses containing SiO2 and B2O3 are particularly suitable when the grating is to be localized in the cladding of a fiber. Glasses containing SiO2, GeO2, and B2O3 are suitable when the grating is in the path region of a waveguide, e.g., in the core of a fiber.
摘要翻译： 已经证明含B玻璃对225-275nm波段的辐射敏感，因此B 2 O 3玻璃特别适于接收折射率调制，例如制造反射光栅。 当光栅定位在纤维的包层中时，含有SiO 2和B 2 O 3的玻璃特别适合。 当光栅位于波导的路径区域中时，例如在纤维的芯中，含有SiO 2，GeO 2和B 2 O 3的玻璃是合适的。
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公开(公告)号：US5594578A
公开(公告)日：1997-01-14
申请号：US75459
申请日：1993-08-25
IPC分类号： G02B6/00 , G02B6/34 , G02F2/00 , H04B10/272 , H04B10/40 , H04J14/08 , H04Q3/52 , H04J14/02 , H04B10/12
CPC分类号： H04B10/272 , H04B10/40
摘要： An optical telecommunications system suitable for operation as a wavelength division multiplex, which system contains at least one filter for attenuating signals at wavelength which are unwanted at a location of the filter, characterized in that the filter comprises an optical fiber which contains a dopant adapted to absorb the unwanted signals.
摘要翻译： PCT No.PCT / GB91 / 02197 Sec。 371日期：1993年8月25日 102（e）日期1993年8月25日PCT 1991年12月11日PCT公布。 公开号WO92 / 10887 日期1992年6月25日适用于作为波分复用的操作的光通信系统，该系统包含用于衰减在滤波器的位置处不期望的波长的信号的至少一个滤波器，其特征在于，所述滤波器包括光纤， 包含适于吸收不想要的信号的掺杂剂。
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公开(公告)号：US4675038A
公开(公告)日：1987-06-23
申请号：US856841
申请日：1986-04-21
IPC分类号： C03B37/018 , C03C13/04 , G02B6/036 , C03C25/02
CPC分类号： G02B6/03633 , C03B37/018 , C03B37/01861 , C03C13/045 , G02B6/03627 , C03B2203/24 , Y10S65/90
摘要： An improved method of manufacturing an optical fibre by vapor phase deposition of layers of cladding and core material for an optical fibre on the inside of a tubular substrate, followed by heating of the tube to cause it to collapse into a preform and drawing of the preform to form the fibre, includes performing the collapse with the introduction of chlorine gas acting as a drying agent. An alternative to chlorine gas is a vapor which decomposes in situ to yield chlorine without producing a solid deposit.
摘要翻译： 一种改进的制造光纤的方法，该方法是通过气相沉积在管状基材内部的用于光纤的包层和芯材料层，随后加热该管以使其塌陷成预成型件并预成型件的拉伸 以形成纤维，包括通过引入用作干燥剂的氯气进行塌陷。 氯气的替代品是在原位分解产生氯而不产生固体沉积物的蒸汽。
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公开(公告)号：US06574406B2
公开(公告)日：2003-06-03
申请号：US09950488
申请日：2001-09-11
申请人： Benjamin J. Ainslie , Monica K. Davis , Matthew J. Dejneka , David A. S. Loeber , Raymond P. Smith
发明人： Benjamin J. Ainslie , Monica K. Davis , Matthew J. Dejneka , David A. S. Loeber , Raymond P. Smith
IPC分类号： G02B602
CPC分类号： G02B6/03694 , G02B6/02052 , G02B6/03622 , G02B6/274 , G02B6/29319 , H01S3/094003 , H01S3/094053 , H01S3/0941
摘要： The invention provides a selectively absorbing optical fiber that is transparent at pump wavelengths, and highly absorbing at signal wavelengths. The selectively absorbing optical fiber includes selectively absorbing species, such as rare earth ions, in concentrations sufficient to provide the desired absorbance selectivity. The fiber is useful as a fiber pigtail for pump lasers in optical amplifiers, where it can reduce the effects of multi-path interference by absorbing stray light with wavelengths in the signal band.
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