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1. 发明公开

EP0700179A1 Soliton transmission system having sliding-frequency guiding filters with particular filter strengths and sliding rates 失效
标题翻译：具有特定滤波强度和滑动速率的滑动频率导引滤波器的孤子传输系统
公开(公告)号：EP0700179A1
公开(公告)日：1996-03-06
申请号：EP95305692.6
申请日：1995-08-15
申请人： AT&T Corp.
发明人： Mamyshev, Pavel V. , Mollenauer, Linn Frederick
IPC分类号： H04B10/18
CPC分类号： H04B10/25077
摘要： A soliton transmission system comprises optical filters (23-1 -- 23-N) whose center frequency intentionally differs from the center frequency of adjacent optical filters, wherein the filter strength η of the filters is between about 0.3-0.5, and preferably is 0.4. The center frequency of the series of optical filters is translated along the desired length of the system in a predetermined manner at a rate of less than or equal to (2/27) ½ η and greater than or equal to 0.034η + 0.047η. The center frequencies of the optical filters preferably increase in the direction of propagation.
摘要翻译：孤子传输系统包括中心频率有意不同于相邻滤光器的中心频率的光学滤波器（23-1至23-N），其中滤波器的滤波器强度η在大约0.3至0.5之间，并且优选地为0.4 。该系列光学滤波器的中心频率以小于或等于（2/27）ιη并且大于或等于0.034η+0.047η的速率以预定方式沿系统的期望长度平移。滤光器的中心频率优选地在传播方向上增加。

2. 发明授权

EP0231016B1 Fiber soliton optical telecommunication system 失效
标题翻译：光纤光电通信系统
公开(公告)号：EP0231016B1
公开(公告)日：1993-05-19
申请号：EP87101098.9
申请日：1987-01-27
申请人： AT&T Corp.
发明人： Gordon, James Power , Islam, Mohammed Nazrul , Mollenauer, Linn Frederick
IPC分类号： H04B10/00
CPC分类号： H04B10/25077

3. 发明公开

EP0231016A3 Fiber soliton optical telecommunication system 失效
标题翻译：光纤光电通信系统
公开(公告)号：EP0231016A3
公开(公告)日：1989-11-29
申请号：EP87101098.9
申请日：1987-01-27
申请人： AT&T Corp.
发明人： Gordon, James Power , Islam, Mohammed Nazrul , Mollenauer, Linn Frederick
IPC分类号： H04B10/00
CPC分类号： H04B10/25077
摘要： This invention concerns with optical fiber soliton telecommunication systems. The propagation speed of optical solitons in single mode optical fiber depends on the wavelength of the solitons. Thus, if solitons of different wavelengths are co-propagating, "collisions" between pulses can be expected to result. Collisions between solitons do preserve the soliton character of the colliding pulses, even in the presence of perturbations of the type present in fiber communications systems, e.g., core size variations, distributed or lumped loss, and distributed gain; thus, a wavelength division multiplexed soliton system is possible, and techniques and formulae for the design of such systems are disclosed, In preferred embodiments, fiber loss is periodically compensated by Raman gain. Typical amplification periods (using currently available silica-based fiber) are 30-50 km, typical pump powers are less than 100 mW, and rate-length products of the order of 3 10 5 GHz km are possible. Multiplexed soliton systems have several advantages over prior art soliton systems. For instance, they permit attainment of very high transmission rates without the use of very high speed electronics. For instance, an examplary 3000 km, 24 channel multiplexed soliton system has a total transmission rate of 106 GHz, i.e., 4.6 GHzlchannel.

4. 发明公开

EP0221711A3 Optical fiber communications system comprising raman amplification means 失效
标题翻译：包括拉曼放大装置的光纤通信系统
公开(公告)号：EP0221711A3
公开(公告)日：1989-11-15
申请号：EP86308101.4
申请日：1986-10-20
申请人： AT&T Corp.
发明人： Mollenauer, Linn Frederick , Stolen, Rogers Hall
IPC分类号： H04B9/00
CPC分类号： H04B10/2916
摘要： An optical fiber communications system with Raman amplification of the signal radiation comprises a broadband pump radiation source (15), or, preferably, a multiplicity of pump radiation sources. The sources are selected to result in a pump radiation spectrum such that pump radiation intensity in the core of a fiber (10) is less than a critical intensity I c . In particular, the average intensity of pump radiation in a first spectral interval, centered on any wavelength λ p in the pump radiation spectrum and of width equal to the Brillouin line width of the fiber at λ p , is to be less than that average intensity in the first spectral interval that results in conversion of 10% of the radiation in the first spectral interval to stimulated Brillouin radiation. Use of a multiplicity of pump sources not only can reduce pump noise and pump depletion due to stimulated Brillouin scattering, but typically also can result in enhanced system reliability and lower cost. In a preferred embodiment, the invention is a soliton fiber communications system, with pump radiation injected at one or more intermediate fiber locations.

5. 发明公开

EP0604039A2 Method for forming spatially-varying distributed bragg reflectors in optical media 失效
标题翻译：用于生产分布式布拉格反射器的与光介质不同栅格间距的方法。
公开(公告)号：EP0604039A2
公开(公告)日：1994-06-29
申请号：EP93309689.3
申请日：1993-12-03
申请人： AT&T Corp.
发明人： Mizrahi, Victor , Mollenauer, Linn Frederick
IPC分类号： G02B6/16 , G02B6/12
CPC分类号： G02B6/02138 , C03B2201/34 , C03B2203/18 , C03C13/045 , C03C25/6208 , C03C25/6226 , G02B6/0208 , G02B6/02085 , G02B6/02133 , G02B6/02152 , G02B6/124 , H01S3/0675 , H01S3/094003 , H01S3/094015
摘要： A method for forming a grating in a photosensitive medium (18) such as a photosensitive optical fiber. The method comprises impinging a pair of interfering, actinic beams (15, 16) onto the medium, and during the impinging step, advancing the illuminated portion of the interference pattern relative to the medium. The advancement is carried out without changing the phase, or registration, of the interference pattern. According to one embodiment of the invention, a grating (40) having a spatially dependent period chirped grating is produced by varying the wavelength or the intersection angle of the actinic beams during the advancement. The intersection angle may be varied with a curved mirror. According to a second embodiment of the invention, a grating having a spatially dependent refractive index perturbation is produced by varying the dose of actinic radiation received by the medium during the advancement.
摘要翻译：如光敏光纤：一种用于在感光介质（18），形成光栅的方法。该方法包括撞击一对干涉，光化梁（15，16）的到介质，并且在撞击步骤，前进相对于介质的干涉图案的被照射部分。推进被执行而不改变干涉图案的相位，或登记。。根据本发明的一个实施例中，具有在空间上相关的周期的光栅（40）变周期光栅是通过改变波长或前进期间的光化射束的交叉角度产生的。交叉角度可以是具有曲面镜变化。。根据本发明的第二实施例，通过改变前进过程中由介质接收光化辐射的剂量产生具有空间相关的折射率扰动的光栅。

6. 发明公开

EP0557018A1 Harmonically mode-locked ring laser 有权转让
标题翻译： Harmonisch Modengekoppelter激光。
公开(公告)号：EP0557018A1
公开(公告)日：1993-08-25
申请号：EP93301001.9
申请日：1993-02-11
申请人： AT&T Corp.
发明人： Harvey, George Treide , Mollenauer, Linn Frederick
IPC分类号： H01S3/06 , H01S3/098
CPC分类号： H01S3/06791 , H01S3/082 , H01S3/1062 , H01S3/1109 , H01S3/1121 , H01S3/1305 , H01S3/1396
摘要： The invention is an improvement of a harmonically mode-locked ring laser of the type comprising means (12) defining an optical path, an active laser medium (15) for emitting coherent light to be transmitted along the optical path, and means (18) included in the optical path for causing the light to propagate along the path as a train of pulses having a period which is substantially equal to the transit time of light pulses in the optical path divided by an integer. The improvement is characterized in that the optical path includes a Fabry-Perot optical resonator (24) having a free spectral range substantially equal to the pulse repetition rate of the optical pulses in the ring laser. Under this condition, the Fabry-Perot resonator tends to equalize the energy, shape and width of the individual pulses.
摘要翻译：本发明是包括限定光路的装置（12）的类型的谐波锁模环形激光器的改进，用于发射沿着光路传输的相干光的有源激光介质（15）和装置（18）包括在用于使光沿路径传播的光路中，作为具有基本上等于光路中的光脉冲的传播时间除以整数的周期的脉冲串。其改进的特征在于光路包括具有基本上等于环形激光器中的光脉冲的脉冲重复率的自由光谱范围的法布里 - 珀罗光学谐振器（24）。在这种条件下，法布里 - 珀罗谐振器趋于均衡各脉冲的能量，形状和宽度。

7. 发明公开

EP0437040A3 Multiport optical devices 失效
标题翻译：多光学设备
公开(公告)号：EP0437040A3
公开(公告)日：1991-09-04
申请号：EP90313209.0
申请日：1990-12-05
申请人： AT&T Corp.
发明人： Gardner, William B. , Kuhl, Jane F. , Miller, Calvin M. , Mollenauer, Linn Frederick
IPC分类号： G02B6/28 , G02B6/34
CPC分类号： G02B6/29358 , G02B6/2848 , G02B6/2937 , G02B6/2938 , G02B6/3512
摘要： A multi-port optical device for transferring optical signals, or portion of optical signals, from one transmission element to another is disclosed. The inventive optical device comprises a pair of graded index lenses (103,106) having an interposed Fabry Perot etalon (109). The functionality of the device may be modified by varying the transmission characteristics of the etalon, which may be effected by varying its optical path length. In operation, the optical device utilizes the graded index lenses as image transfer lenses between transmission elements (101,102,107,108) wherein wavelength selectivity therebetween is afforded by the filtering mechanism associated with the etalon. The optical device may be used as a wavelength multiplexer or as an optical splitter. Moreover, by utilizing a piezoelectric transducer, the optical device may be made to operate as an optical switch.

8. 发明公开

EP0553994A1 Compact optical pulse source 失效
标题翻译： Kompakte Quellefüroptische Pulse。
公开(公告)号：EP0553994A1
公开(公告)日：1993-08-04
申请号：EP93300356.8
申请日：1993-01-20
申请人： AT&T Corp.
发明人： Adar, Renen , Mizrahi, Victor , Mollenauer, Linn Frederick , Morton, Paul Adrian
IPC分类号： H01S3/098 , H01S3/085
CPC分类号： H04B10/508 , H01S5/065 , H01S5/0657 , H01S5/1212 , H01S5/146 , H04B10/504
摘要： An optical pulse source includes a semiconductor diode laser (10), an external optical cavity, and a source (100) of a modulated drive current such that the laser can be actively mode-locked. The external cavity includes an optical fiber (50) and a distributed Bragg reflector (160). In preferred embodiments, the optical pulse source can produce pulses having a time-bandwidth product within about 20% of the transform limit, such that soliton pulses can be transmitted.
摘要翻译：光脉冲源包括半导体二极管激光器（10），外部光腔和调制驱动电流的源（100），使得激光器可以被主动地锁定。外部空腔包括光纤（50）和分布式布拉格反射器（160）。在优选实施例中，光脉冲源可以产生具有在变换极限的约20％内的时间带宽积的脉冲，使得可以传输孤子脉冲。

9. 发明公开

EP0437040A2 Multiport optical devices 失效
标题翻译： Optisches Mehrtor。
公开(公告)号：EP0437040A2
公开(公告)日：1991-07-17
申请号：EP90313209.0
申请日：1990-12-05
申请人： AT&T Corp.
发明人： Gardner, William B. , Kuhl, Jane F. , Miller, Calvin M. , Mollenauer, Linn Frederick
IPC分类号： G02B6/28 , G02B6/34
CPC分类号： G02B6/29358 , G02B6/2848 , G02B6/2937 , G02B6/2938 , G02B6/3512
摘要： A multi-port optical device for transferring optical signals, or portion of optical signals, from one transmission element to another is disclosed. The inventive optical device comprises a pair of graded index lenses (103,106) having an interposed Fabry Perot etalon (109). The functionality of the device may be modified by varying the transmission characteristics of the etalon, which may be effected by varying its optical path length. In operation, the optical device utilizes the graded index lenses as image transfer lenses between transmission elements (101,102,107,108) wherein wavelength selectivity therebetween is afforded by the filtering mechanism associated with the etalon. The optical device may be used as a wavelength multiplexer or as an optical splitter. Moreover, by utilizing a piezoelectric transducer, the optical device may be made to operate as an optical switch.
摘要翻译：公开了一种用于将光信号或部分光信号从一个传输元件传送到另一传输元件的多端口光学设备。本发明的光学装置包括具有插入的法布里珀罗标准具（109）的一对渐变折射率透镜（103,106）。可以通过改变标准具的传输特性来修改设备的功能，这可以通过改变其光程长度来实现。在操作中，光学装置利用渐变折射率透镜作为传输元件（101,102,107,108）之间的图像传输透镜，其中之间的波长选择性由与标准具相关联的滤光机构提供。光学器件可以用作波长多路复用器或者作为光分路器。此外，通过利用压电换能器，可以使光学装置作为光开关工作。

10. 发明授权

EP0604039B1 Method for forming spatially-varying distributed bragg reflectors in optical media 失效
标题翻译：用于生产分布式布拉格反射器的与光介质不同栅格间距的方法
公开(公告)号：EP0604039B1
公开(公告)日：1999-03-03
申请号：EP93309689.3
申请日：1993-12-03
申请人： AT&T Corp.
发明人： Mizrahi, Victor , Mollenauer, Linn Frederick
IPC分类号： G02B6/16 , G02B6/12
CPC分类号： G02B6/02138 , C03B2201/34 , C03B2203/18 , C03C13/045 , C03C25/6208 , C03C25/6226 , G02B6/0208 , G02B6/02085 , G02B6/02133 , G02B6/02152 , G02B6/124 , H01S3/0675 , H01S3/094003 , H01S3/094015
摘要： A method for forming a grating in a photosensitive medium (18) such as a photosensitive optical fiber. The method comprises impinging a pair of interfering, actinic beams (15, 16) onto the medium, and during the impinging step, advancing the illuminated portion of the interference pattern relative to the medium. The advancement is carried out without changing the phase, or registration, of the interference pattern. According to one embodiment of the invention, a grating (40) having a spatially dependent period chirped grating is produced by varying the wavelength or the intersection angle of the actinic beams during the advancement. The intersection angle may be varied with a curved mirror. According to a second embodiment of the invention, a grating having a spatially dependent refractive index perturbation is produced by varying the dose of actinic radiation received by the medium during the advancement.

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