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1. 再颁专利

USRE38086E1 Dispersion compensating fiber and optical transmission system including the same 有权
标题翻译：色散补偿光纤和光传输系统包括它们
公开(公告)号：USRE38086E1
公开(公告)日：2003-04-22
申请号：US09714615
申请日：2000-11-17
申请人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
发明人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
IPC分类号： G02B616
CPC分类号： G02B6/02261 , C03B37/014 , C03B2203/22 , C03B2203/36 , G02B6/02004 , G02B6/0228 , G02B6/02285 , G02B6/0281 , G02B6/0283 , G02B6/0286 , G02B6/03611 , G02B6/03627 , G02B6/03644 , G02B6/29377 , H01S3/06729 , H01S3/302
摘要： The present invention relates to a dispersion compensating fiber for improving a transmission system with it in total chromatic dispersion and dispersion slope in the 1.55 &mgr;m wavelength band. The dispersion compensating fiber according to the present invention is characterized by having the following characteristics for light in the 1.55 &mgr;m wavelength band: chromatic dispersion not less than −40 ps/km/nm and not more than 0 ps/km/nm; dispersion slope not less than −0.5 ps/km/nm2 and not more than −0.1 ps/km/nm2; transmission loss not more than 0.5 dB/km; polarization mode dispersion not more than 0.7 ps.km−½; mode field diameter not less than 4.5 &mgr;m and not more than 6.5 &mgr;m; cut-off wavelength not less than 0.7 &mgr;m and not more than 1.7 &mgr;m in the length of 2 m; and bending loss at the diameter of 20 mm, not more than 100 dB/m. The dispersion compensating fiber is optically connected with a dispersion shifted fiber as a compensated object at a ratio of appropriate lengths, which can improve the system including the dispersion compensating fiber in the total chromatic dispersion and dispersion slope of the system in the 1.55 &mgr;m band.
摘要翻译：本发明涉及一种用于改善传输系统的色散补偿光纤在1.55μm波长带中的总色散和色散斜率。根据本发明的色散补偿光纤的特征在于对于1.55μm波长带中的光具有以下特性：色散不小于-40ps / km / nm且不大于0ps / km / nm; 色散斜率不小于-0.5 ps / km / nm2，不大于-0.1 ps / km / nm2; 传输损耗不超过0.5 dB / km; 偏振模色散不大于0.7 ps.km-½; 模场直径不小于4.5μm，不大于6.5μm; 截止波长不小于0.7μm和不大于1.7μm，长度为2μm; 弯曲损耗为20mm，不大于100dB / m。色散补偿光纤以适当长度的比率与作为补偿对象的色散位移光纤光学连接，这可以改善包括色散补偿光纤在1.55mum带中的系统的总色散和色散斜率的系统。

2. 发明授权

US5838867A Dispersion compensating fiber and optical transmission system including the same 失效
标题翻译：色散补偿光纤和光传输系统包括它们
公开(公告)号：US5838867A
公开(公告)日：1998-11-17
申请号：US834305
申请日：1997-04-15
申请人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
发明人： Masashi Onishi , Hiroo Kanamori , Masayuki Nishimura , Tomonori Kashiwada , Yasushi Koyano
IPC分类号： C03B37/014 , G02B6/34 , H01S3/067 , H01S3/30 , G02B6/16
CPC分类号： G02B6/02261 , C03B37/014 , G02B6/02004 , G02B6/0228 , G02B6/02285 , G02B6/03611 , G02B6/03627 , G02B6/03644 , G02B6/29377 , C03B2203/22 , C03B2203/36 , G02B6/0281 , G02B6/0283 , G02B6/0286 , H01S3/06729 , H01S3/302
摘要： The present invention relates to a dispersion compensating fiber for improving a transmission system with it in total chromatic dispersion and dispersion slope in the 1.55 .mu.m wavelength band. The dispersion compensating fiber according to the present invention is characterized by having the following characteristics for light in the 1.55 .mu.m wavelength band: chromatic dispersion not less than -40 ps/km/nm and not more than 0 ps/km/nm; dispersion slope not less than -0.5 ps/km/nm.sup.2 and not more than -0.1 ps/km/nm.sup.2 ; transmission loss not more than 0.5 dB/km; polarization mode dispersion not more than 0.7 ps.multidot.km.sup.-1/2 ; mode field diameter not less than 4.5 .mu.m and not more than 6.5 .mu.m; cut-off wavelength not less than 0.7 .mu.m and not more than 1.7 .mu.m in the length of 2 m; and bending loss at the diameter of 20 mm, not more than 100 dB/m. The dispersion compensating fiber is optically connected with a dispersion shifted fiber as a compensated object at a ratio of appropriate lengths, which can improve the system including the dispersion compensating fiber in the total chromatic dispersion and dispersion slope of the system in the 1.55 .mu.m band.
摘要翻译：本发明涉及一种用于改善传输系统的色散补偿光纤，其在1.55μm波长带中的总色散和色散斜率。根据本发明的色散补偿光纤的特征在于对于1.55μm波长带中的光具有以下特性：色散不低于-40ps / km / nm且不大于0ps / km / nm; 色散斜率不小于-0.5 ps / km / nm2，不大于-0.1 ps / km / nm2; 传输损耗不超过0.5 dB / km; 偏振模色散不大于0.7 psxkm- + E，fra 1/2 + EE; 模场直径不小于4.5亩，不超过6.5亩; 截止波长不小于0.7μm，长度不超过1.7μm; 弯曲损耗为20mm，不大于100dB / m。色散补偿光纤以适当长度的比例与作为补偿对象的色散位移光纤光学连接，这可以改善包括色散补偿光纤在1.55μm带中的系统的总色散和色散斜率的系统。

3. 发明授权

US5746801A Process of producing fluoride glass 失效
标题翻译：生产氟化玻璃的工艺
公开(公告)号：US5746801A
公开(公告)日：1998-05-05
申请号：US785835
申请日：1997-01-15
申请人： Chie Fukuda , Masashi Onishi , Hiroo Kanamori
发明人： Chie Fukuda , Masashi Onishi , Hiroo Kanamori
IPC分类号： C03B5/16 , C03B5/033 , C03B37/012 , C03C3/32 , C03C13/04 , C03B37/00 , C03B3/02
CPC分类号： C03B37/01265 , C03B5/0334 , C03C3/325 , C03B2201/82 , Y10S65/16
摘要： A process for producing fluoride glass, including the steps of: introducing a raw material for fluoride glass into a heating vessel; and heating the raw material in the heating vessel, while causing the heating vessel to have a negative internal pressure and introducing an inert gas into the heating vessel, thereby to melt the raw material under heating.
摘要翻译：一种生产氟化物玻璃的方法，包括以下步骤：将氟化玻璃原料引入加热容器; 在加热容器中加热原料，同时使加热容器具有负的内部压力，并将惰性气体引入加热容器中，从而在加热下熔化原料。

4. 发明授权

US5432131A Lead-containing fluoride glass, optical fiber and process for producing it 失效
标题翻译：含铅氟化玻璃，光纤及其生产工艺
公开(公告)号：US5432131A
公开(公告)日：1995-07-11
申请号：US55024
申请日：1993-04-30
申请人： Takashi Kogo , Hiroo Kanamori , Masashi Onishi , Yoshiaki Miyajima , Masataka Nakazawa
发明人： Takashi Kogo , Hiroo Kanamori , Masashi Onishi , Yoshiaki Miyajima , Masataka Nakazawa
IPC分类号： C03B37/012 , C03C3/32 , C03C13/04 , G02B6/00
CPC分类号： C03C3/325 , C03B37/01211 , C03B37/01268 , C03C13/042 , C03B2201/82 , C03B2203/24 , Y10T428/2929 , Y10T428/2933 , Y10T428/2958 , Y10T428/2964
摘要： Lead-containing fluoride glass comprises 50-70 mol % of ZrF.sub.4, 3-5 mol % of LaF.sub.3, 0.1-3 mol % of YF.sub.3, and 2-15 mol % of NaF and/or LiF and/or CsF, where LaF.sub.3 +YF.sub.3 =4.5-6 mol %, and further comprises lead. An optical fiber comprises a core made of the lead-containing fluoride glass and a cladding surrounding the core. A process for producing an optical fiber comprises forming a base material for a core of the lead-containing fluoride glass, forming a base material for a cladding of fluoride glass containing 30-60 mol % of HfF.sub.4, and drawing the base materials into an optical fiber at a drawing temperature of 315.degree.-340.degree. C.
摘要翻译：含铅氟化物玻璃包含50-70摩尔％的ZrF 4，3-5摩尔％的LaF 3，0.1-3摩尔％的YF 3和2-15摩尔％的NaF和/或LiF和/或CsF，其中LaF 3 + YF3 = 4.5-6mol％，进一步包含铅。光纤包括由含铅氟化物玻璃制成的芯和围绕芯的包层。一种制造光纤的方法包括：形成含铅氟化物玻璃的芯的基材，形成含有30-60摩尔％HfF 4的氟化物玻璃的包层用基材，将该基材拉伸成光学纤维在315°-340℃的拉伸温度

5. 发明授权

US5742723A Optical transmission system with dispersion compensating optical fiber 失效
公开(公告)号：US5742723A
公开(公告)日：1998-04-21
申请号：US659322
申请日：1996-06-06
申请人： Masashi Onishi , Hiroo Kanamori
发明人： Masashi Onishi , Hiroo Kanamori
IPC分类号： G02B6/036 , G02B6/22
CPC分类号： G02B6/03677 , G02B6/02261 , G02B6/02285 , G02B6/03605 , G02B6/03611 , G02B6/03627 , H04B10/2525 , G02B6/0228
摘要： A dispersion compensating fiber has a negative chromatic dispersion slope and a value of chromatic dispersion suitable for practical application, and a bending loss thereof with a bending diameter of 40 mm is smaller than 0.01 dB/m at 1.55 .mu.m. A diameter of a core is larger than 3 .mu.m but smaller than 4 .mu.m. A ratio (Da/Db) of the diameter of the core to an outer diameter of a first cladding is between 0.4 and 0.6 both inclusive. A relative refractive index difference of the core to a second cladding, (nc-n2)/n2, is larger than 0.02 but smaller than 0.03. A relative refractive index difference of the first cladding to the second cladding, (n2-n1)/n2, is larger than 0.004 but smaller than 0.01. This dispersion compensating optical fiber has a sufficient negative chromatic dispersion slope at wavelengths (1.55 .mu.m to 1.65 .mu.m both inclusive) around 1.55 .mu.m and a bending loss thereof at the wavelength of 1.55 .mu.m with the bending diameter of 40 mm is smaller than 0.01 dB/m.

6. 发明授权

US5740297A Dispersion-compensating fiber and method of fabricating the same 失效
标题翻译：色散补偿光纤及其制造方法
公开(公告)号：US5740297A
公开(公告)日：1998-04-14
申请号：US705993
申请日：1996-08-30
申请人： Masashi Onishi , Chie Fukuda , Hiroo Kanamori
发明人： Masashi Onishi , Chie Fukuda , Hiroo Kanamori
IPC分类号： C03B37/012 , C03B37/027 , C03C13/04 , G02B6/22
CPC分类号： G02B6/02261 , C03B37/01211 , C03B37/027 , C03C13/045 , G02B6/03627 , G02B6/03644 , G02B6/03655 , C03B2201/12 , C03B2201/20 , C03B2201/31 , C03B2203/22 , C03B2203/222 , C03B2203/23 , C03B2203/26 , C03B2203/36 , C03C2201/11 , C03C2201/12 , C03C2201/31
摘要： This invention relates to a dispersion-compensating fiber which can be drawn at a lower temperature and can further reduce optical transmission loss. This dispersion-compensating fiber comprises a core portion containing a high concentration of GeO.sub.2 and a cladding portion formed around the outer periphery of the core portion. The cladding portion comprises a first cladding containing fluorine or the like as an index reducer, a second cladding having a higher refractive index than that of the first cladding, and a third cladding which becomes a glass region substantially noncontributory to propagation of signal light. In particular, the third cladding contains a desired impurity such that the glass viscosity thereof becomes lower than that of the second cladding or pure silica cladding at a predetermined temperature.
摘要翻译：本发明涉及一种可在较低温度下拉制并能进一步降低光传输损耗的色散补偿光纤。这种色散补偿光纤包括含有高浓度GeO 2的核心部分和形成在芯部分的外周周围的包层部分。包层部分包括含有氟等作为折射率减少器的第一包层，具有比第一包层的折射率高的第二包层，以及变成与信号光的传播基本上不相容的玻璃区域的第三包层。特别地，第三包层包含期望的杂质，使得其玻璃粘度在预定温度下变得低于第二包层或纯二氧化硅包层的玻璃粘度。

7. 发明授权

US5695880A Lead-containing fluoride glass, optical fiber and process for producing it 失效
标题翻译：含铅氟化玻璃，光纤及其生产工艺
公开(公告)号：US5695880A
公开(公告)日：1997-12-09
申请号：US399144
申请日：1995-03-06
申请人： Takashi Kogo , Hiroo Kanamori , Masashi Onishi , Yoshiaki Miyajima , Masataka Nakazawa
发明人： Takashi Kogo , Hiroo Kanamori , Masashi Onishi , Yoshiaki Miyajima , Masataka Nakazawa
IPC分类号： C03B37/012 , C03C3/32 , C03C13/04 , G02B6/00 , B32B9/00
CPC分类号： C03C3/325 , C03B37/01211 , C03B37/01268 , C03C13/042 , C03B2201/82 , C03B2203/24 , Y10T428/2929 , Y10T428/2933 , Y10T428/2958 , Y10T428/2964
摘要： Lead-containing fluoride glass comprises 50-70 mol % of ZrF.sub.4, 3-5 mol % of LaF.sub.3, 0.1-3 mol % of YF.sub.3, and 2-15 mol % of NaF and/or LiF and/or CsF, where LaF.sub.3 +YF.sub.3 =4.5-6 mol %, and further comprises lead. An optical fiber comprises a core made of the lead-containing fluoride glass and a cladding surrounding the core. A process for producing an optical fiber comprises forming a base material for a core of the lead-containing fluoride glass, forming a base material for a cladding of fluoride glass containing 30-60 mol % of HfF.sub.4, and drawing the base materials into an optical fiber at a drawing temperature of 315-340 .degree. C.
摘要翻译：含铅氟化物玻璃包含50-70摩尔％的ZrF 4，3-5摩尔％的LaF 3，0.1-3摩尔％的YF 3和2-15摩尔％的NaF和/或LiF和/或CsF，其中LaF 3 + YF3 = 4.5-6mol％，进一步包含铅。光纤包括由含铅氟化物玻璃制成的芯和围绕芯的包层。一种制造光纤的方法包括：形成含铅氟化物玻璃的芯的基材，形成含有30-60摩尔％HfF 4的氟化物玻璃的包层用基材，将该基材拉伸成光学纤维的拉伸温度为315-340℃

8. 发明授权

US5581647A Method of fabricating dispersion compensation fiber 失效
标题翻译：制造色散补偿光纤的方法
公开(公告)号：US5581647A
公开(公告)日：1996-12-03
申请号：US519609
申请日：1995-08-25
申请人： Masashi Onishi , Koji Amemiya , Chie Fukuda , Hiroo Kanamori
发明人： Masashi Onishi , Koji Amemiya , Chie Fukuda , Hiroo Kanamori
IPC分类号： G02B6/00 , C03B37/027 , C03C13/04 , G02B6/02 , G02B6/16
CPC分类号： G02B6/02261 , C03B37/02745 , C03C13/045 , G02B6/02285 , G02B6/03611 , G02B6/0365 , G02B6/03666 , C03B2203/20 , C03B2203/36 , C03B2205/06 , C03B2205/42
摘要： In a method of fabricating DCF, the fiber is drawn while rotating said optical fiber preform, wherein a rotational speed of said optical fiber preform is 10 to 1,000 rpm, a drawing speed is 50 to 1,000 m/min, and a drawing tension is 2.4 to 13 kg/mm.sup.2.
摘要翻译：在制造DCF的方法中，在旋转所述光纤预制棒的同时拉伸纤维，其中所述光纤预制棒的转速为10至1,000rpm，拉伸速度为50至1,000m / min，拉伸张力为2.4 至13 kg / mm2。

9. 发明授权

US5555340A Optical transmission system with dispersion compensating optical fiber 失效
标题翻译：具有色散补偿光纤的光传输系统
公开(公告)号：US5555340A
公开(公告)日：1996-09-10
申请号：US523750
申请日：1995-09-05
申请人： Masashi Onishi , Hiroo Kanamori
发明人： Masashi Onishi , Hiroo Kanamori
IPC分类号： G02B6/036 , G02B6/22
CPC分类号： G02B6/03677 , G02B6/02261 , G02B6/02285 , G02B6/03605 , G02B6/03611 , G02B6/03627 , H04B10/2525 , G02B6/0228
摘要： A dispersion compensating fiber has a negative chromatic dispersion slope and a value of chromatic dispersion suitable for practical application, and a bending loss thereof with a bending diameter of 40 mm is smaller than 0.01 dB/m at 1.55 .mu.m. A diameter of a core is larger than 3 .mu.m but smaller than 4 .mu.m. A ratio (Da/Db) of the diameter of the core to an outer diameter of a first cladding is between 0.4 and 0.6 both inclusive. A relative refractive index difference of the core to a second cladding, (nc-n2)/n2, is larger than 0.02 but smaller than 0.03. A relative refractive index difference of the first cladding to the second cladding, (n2-n1)/n2, is larger than 0.004 but smaller than 0.01. This dispersion compensating optical fiber has a sufficient negative chromatic dispersion slope at wavelengths (1.55 .mu.m to 1.65 .mu.m both inclusive) around 1.55 .mu.m and a bending loss thereof at the wavelength of 1.55 .mu.m with the bending diameter of 40 mm is smaller than 0.01 dB/m.
摘要翻译：色散补偿光纤具有负色散斜率和适用于实际应用的色散值，其弯曲直径为40mm的弯曲损耗在1.55μm时小于0.01dB / m。芯的直径大于3μm，但小于4μm。芯的直径与第一包层的外径之比（Da / Db）在0.4和0.6之间。芯与第二包层的相对折射率差（nc-n2）/ n2大于0.02但小于0.03。第一包层与第二包层的相对折射率差（n2-n1）/ n2大于0.004但小于0.01。该色散补偿光纤在1.55μm左右的波长（1.55μm〜1.65μm）处具有足够的负色散斜率，其弯曲直径为40mm的波长为1.55μm的弯曲损耗较小超过0.01 dB / m。

10. 发明授权

US5244846A Optical functioning glass and apparatus using the same 失效
标题翻译：光学功能玻璃和使用它的装置
公开(公告)号：US5244846A
公开(公告)日：1993-09-14
申请号：US829477
申请日：1992-02-03
申请人： Masashi Onishi , Koji Nakazato , Hiroo Kanamori , Minoru Watanabe , Yoshiaki Miyajima
发明人： Masashi Onishi , Koji Nakazato , Hiroo Kanamori , Minoru Watanabe , Yoshiaki Miyajima
IPC分类号： G02B6/00 , C03C3/32 , C03C4/00 , G02F1/35 , G02F1/355 , H01S3/06 , H01S3/063 , H01S3/067 , H01S3/07 , H01S3/0915 , H01S3/16 , H01S3/17
CPC分类号： H01S3/06716 , C03C3/325 , C03C4/0071 , H01S3/06754 , H01S2302/00 , H01S2303/00 , H01S3/1611 , H01S3/1691 , H01S3/173
摘要： An optical functioning glass for enabling optical amplification at 1.3-.mu.m wavelength band or increasing efficiency of the amplification is disclosed. The optical functioning glass contains Nd.sup.3+ as an active material and uranium, both of which are doped in a multi-component function glass serving as a host glass. Since uranium is doped in the optical functioning glass, light emission of Nd.sup.3+ in the 1.06-.mu.m wavelength band can be absorbed by uranium. A decrease in efficiency of induced emission in a 1.3-.mu.m wavelength band can be prevented, and an optical functioning glass suitable for optical amplification in the 1.3-.mu.m wavelength band can be obtained. When a fiber is formed using the optical functioning glass as a core, a low-threshold, high-gain fiber amplifier, fiber laser, and the like can be obtained.

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