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1. 发明授权

US07769300B1 Reducing the distortion of optical pulses caused by polarization mode dispersion in optical communication systems 失效
标题翻译：减少光通信系统偏振模色散引起的光脉冲失真
公开(公告)号：US07769300B1
公开(公告)日：2010-08-03
申请号：US09890597
申请日：2000-01-17
申请人： Wolfgang Dultz , Leonid Beresnev , Erna Frins , Franko Kueppers , Heidrun Schmitzer , Joachim Vobian , Werner Weiershausen
发明人： Wolfgang Dultz , Leonid Beresnev , Erna Frins , Franko Kueppers , Heidrun Schmitzer , Joachim Vobian , Werner Weiershausen
IPC分类号： H04B10/00
CPC分类号： H04B10/2572
摘要： A method and device for reducing the distortion of optical pulses caused by the polarization mode dispersion in optical communication systems is provided. When an optical pulse having any polarization is transmitted through an optical communication system, which is optically anisotropic, at least in sections, the optical pulse may become distorted due to the different velocities of the various polarization components. This distortion of the optical pulses may reduces the maximum transmission rate of the system. A method is provided for functioning in response to the detected transmission quality of the communication system where a polarization-controlling device for setting the polarization of the optical pulse is driven in such a way that the transmission quality is maximized. An optical communication system, including an optical transmission medium, involves a device for determining the transmission quality of the communication system, a regulating device, and a polarization-controlling device. The output signal from the device for determining the transmission quality of the communication system may be applied to the regulating device, which drives the polarization-controlling device to change the polarization of the optical pulses in such a way that the transmission quality is optimized.
摘要翻译：提供了一种用于减少由光通信系统中的偏振模色散引起的光脉冲失真的方法和装置。当具有任何极化的光脉冲至少部分通过光学各向异性的光通信系统传输时，由于各种偏振分量的不同速度，光脉冲可能会变形。光脉冲的这种失真可能会降低系统的最大传输速率。提供了一种响应于检测到的通信系统的传输质量起作用的方法，其中用于设置光脉冲的极化的偏振控制装置以传输质量最大化的方式被驱动。包括光传输介质的光通信系统涉及用于确定通信系统的传输质量的装置，调节装置和偏振控制装置。来自用于确定通信系统的传输质量的设备的输出信号可以被施加到调节装置，该调节装置驱动偏振控制装置以改变传输质量被优化的方式改变光脉冲的偏振。

2. 发明授权

US06282333B1 Method and device to compensate for polarization mode dispersion in an optical transmission link 失效
标题翻译：补偿光传输链路偏振模色散的方法和装置
公开(公告)号：US06282333B1
公开(公告)日：2001-08-28
申请号：US09285118
申请日：1999-04-01
申请人： Wolfgang Dultz , Leonid Beresnev , Heidrun Schmitzer , Bernhard Hils , Joachim Vobian
发明人： Wolfgang Dultz , Leonid Beresnev , Heidrun Schmitzer , Bernhard Hils , Joachim Vobian
IPC分类号： G02B6126
CPC分类号： H04B10/2569
摘要： A method and a device are described to compensate for polarization mode dispersion in an optical transmission link(9, 9′) having polarization-dependent transmission characteristics, in particular in optical fibers and cables with not only statistical, but preferred birefringence. A compensation element (1, 1′, 1″), whose length is adjusted non-destructively using an interference device (2, 2′, 2″), in particular a pressure mechanism, is connected upstream or downstream from the transmission link (9, 9′). The polarization states PL and PS of the compensation element are mixed by the interference and thus the length of the compensation fiber is defined at which a propagation time difference between the partial waves of polarization states PL and PS is increased or decreased so that it compensates for the propagation time difference &tgr; within the transmission link (9, 9′).
摘要翻译：描述了一种方法和装置，以补偿具有偏振相关传输特性的光传输链路（9,9'）中的偏振模色散，特别是在光纤和电缆中，不仅具有统计的但优选的双折射。使用干涉装置（2,2'，2“）非特定地调整长度的补偿元件（1,1'，1”），特别是压力机构，被连接到变速器的上游或下游链接（9,9'）。补偿元件的偏振态PL和PS通过干涉进行混合，因此补偿光纤的长度被定义为偏振状态PL和PS的部分波之间的传播时间差增加或减小，从而它补偿传播时间差在传输链路（9,9'）内。

3. 发明授权

US06529666B1 Single-mode optical fiber 失效
标题翻译：单模光纤
公开(公告)号：US06529666B1
公开(公告)日：2003-03-04
申请号：US09786386
申请日：2001-03-02
申请人： Wolfgang Dultz , Reiner Boness , Joachim Vobian
发明人： Wolfgang Dultz , Reiner Boness , Joachim Vobian
IPC分类号： G02B602
CPC分类号： G02B6/0281 , G02B6/02228 , G02B6/03644
摘要： The present invention relates to an optical single-mode fiber having low dispersion for the wavelength division multiplex operation (WDM) of an optical transmission path, which is made of a central fiber core having the radius r1, two inner fiber cladding layers having the outer radius r2 and a, respectively, where a>r2, and an outer fiber cladding layer, the refractive index profile n(r) of the fiber not being constant as a function of the fiber radius r (triple-clad fiber). By properly selecting the profile form and the refractive index differences between the core layers and cladding layers, respectively, conventional fabrication methods can be used to manufacture a fiber having low dispersion within the wavelength range of about 1400 to 1700 nm and, thus, in the third optical window, fiber attenuation not being increased thereby.
摘要翻译：本发明涉及一种由具有半径r1的中心纤芯构成的光传输路径的波分复用操作（WDM），具有低色散的光单模光纤，两个内光纤覆层具有外层半径r2和a，其中a> r2和外纤维包层，纤维的折射率分布n（r）作为纤维半径r（三包层光纤）的函数不恒定。通过分别适当地选择轮廓形状和芯层和包覆层之间的折射率差，可以使用常规的制造方法来制造在约1400至1700nm的波长范围内具有低色散的光纤，因此在第三光学窗口，纤维衰减不因此而增加。

4. 发明授权

US06415088B1 Method of compensating the dispersion of fluorine-based fiber lasers in the second optical window 失效
标题翻译：补偿氟基纤维激光器在第二光学窗口中的色散的方法
公开(公告)号：US06415088B1
公开(公告)日：2002-07-02
申请号：US09269681
申请日：1999-07-02
申请人： Joachim Vobian , Reiner Boness , Heinz Döring , Jens Peupelmann , Uwe Schmietainski
发明人： Joachim Vobian , Reiner Boness , Heinz Döring , Jens Peupelmann , Uwe Schmietainski
IPC分类号： G02B616
CPC分类号： H01S3/06708 , G02B6/02266 , G02B6/03627 , G02B6/29377 , H01S3/06725 , H01S3/1613 , H01S3/173 , H01S2301/085
摘要： A method of manipulating a compensation fiber for compensating the high negative dispersion of a fiber laser in the second optical window. The active fiber of the fiber laser is linked to a compensation fiber which consists of a step-index quartz glass core with a sheathing. By doping the compensation fiber sheathing with fluorine in a targeted manner, a positive value is set for the dispersion of the compensation fiber. Subsequent dimensioning of the length of the compensation fiber increases the set dispersion value to the positive dispersion value necessary for complete compensation of the dispersion of the fiber laser.
摘要翻译：一种用于补偿光纤激光器在第二光学窗口中的高负色散的补偿光纤的方法。光纤激光器的有源光纤与补偿光纤连接，该补偿光纤由具有护套的阶跃折射率石英玻璃芯组成。通过以目标方式掺杂氟的补偿光纤护套，为补偿光纤的色散设定正值。补偿光纤的长度的后续尺寸将设定的色散值增加到完全补偿光纤激光器色散所需的正色散值。

5. 发明授权

US06630992B1 Method and device for executing control and monitoring measurements in optical transmission paths 失效
标题翻译：用于在光传输路径中执行控制和监视测量的方法和装置
公开(公告)号：US06630992B1
公开(公告)日：2003-10-07
申请号：US09743439
申请日：2001-01-09
申请人： Joachim Vobian , Klaus Mörl
发明人： Joachim Vobian , Klaus Mörl
IPC分类号： G01N2100
CPC分类号： H04B10/071
摘要： A method and a system for carrying out control and monitoring measurements on optical transmission paths which can be used during regular operation and without disturbing the same to measure and control parameters of the transmission path as well as to monitor the transmission path with respect to tapping attempts. A control signal having wavelength that is different from the transmission signal into the transmission path, re-reflected after propagating through the transmission path and analyzed. To reflect the control signal, a wavelength-selective reflecting set-up, such as a dichroic reflector is used, which transmits the transmission signal substantially as an undisturbed signal. The reflected control signal is detected by a detecting device and analyzed with respect to polarization, intensity, signal shape, or other properties, making it possible to infer the properties of the transmission path and/or detect unwanted tampering with the transmission system.
摘要翻译：一种用于对光传输路径进行控制和监视测量的方法和系统，其可以在正常操作期间使用并且不干扰其测量和控制传输路径的参数以及监测相对于攻丝尝试的传输路径。具有与传输信号不同的波长的控制信号进入传输路径，在通过传输路径传播并被分析之后被重新反射。为了反映控制信号，使用诸如二向色反射器的波长选择反射装置，其将传输信号基本上作为未受干扰的信号传输。反射控制信号由检测装置检测，并且相对于偏振，强度，信号形状或其他特性进行分析，使得可以推断传输路径的特性和/或检测与传输系统的不期望的篡改。

6. 发明授权

US06924890B1 Measuring method for individual fibers of cables 失效
标题翻译：电缆单根纤维的测量方法
公开(公告)号：US06924890B1
公开(公告)日：2005-08-02
申请号：US09623125
申请日：1999-02-01
申请人： Joachim Vobian , Georg Herchenroeder , Klaus Moerl
发明人： Joachim Vobian , Georg Herchenroeder , Klaus Moerl
IPC分类号： G01M11/00 , G01N21/00
CPC分类号： G01M11/3109
摘要： In a method for measuring relevant parameters of individual fibers of single-mode and multimode fibers of glass- or plastic-fiber cables, measuring radiation is reflected at the end of the test fiber to the fiber input by a mirror, particularly a Schmidt mirror having very high reflectivity (>99%), the measurement being carried out at the coupling-in site by a combined transmitting and receiving device. The Schmidt mirror is connected to the test fiber via a so-called fiber connector. The highly reflective mirror coating is applied to the end face of a given connector, so that the Schmidt connector provided with the mirror coating is connected to the test fiber either directly or via a short glass-fiber cable piece terminated with a standard connector and with the Schmidt mirror connector. With the use of a glass-fiber cable piece thus terminated the Schmidt mirror connector remains untouched and is protected.
摘要翻译：在用于测量玻璃或塑料光纤电缆的单模和多模光纤的各个纤维的相关参数的方法中，测量辐射在测试光纤的末端被反射镜反射到光纤输入端，特别是施密特镜具有非常高的反射率（> 99％），通过组合的发射和接收装置在耦合现场进行测量。施密特镜通过所谓的光纤连接器连接到测试光纤。将高反射镜面涂层施加到给定连接器的端面，使得配备有镜面涂层的施密特连接器直接或经由标准连接器端接的短玻璃纤维电缆片连接到测试光纤，并且施密特镜连接器。通过使用如此终止的玻璃纤维电缆片，施密特镜连接器保持不变，并被保护。

7. 发明授权

US06640035B2 Dispersion compensation fiber 失效
标题翻译：色散补偿光纤
公开(公告)号：US06640035B2
公开(公告)日：2003-10-28
申请号：US09269649
申请日：1999-07-02
申请人： Joachim Vobian
发明人： Joachim Vobian
IPC分类号： G02B602
CPC分类号： G02B6/02242 , G02B6/02261 , G02B6/03611 , G02B6/03627 , G02B6/03644 , H01S3/06708
摘要： The phase modulator in the laser resonator requires both at the input and at the output defined linearly polarized light which has to be generated. Hitherto, this was bought about in a complex and expensive manner using polarization actuators. The invention provides a combination of dispersion compensation and definition of the linear polarization state in a dispersion compensation fiber (PM-DC fiber) which is birefringent at such a high level that only the two orthogonal linear polarization states can be diffused therein. The invention can be used for mode-locked fiber lasers in which the time pulse width has to be as small as possible.
摘要翻译：激光谐振器中的相位调制器在输入端和输出端均需要必须产生的线性偏振光。到目前为止，这是使用极化致动器以复杂和昂贵的方式购买的。本发明提供了一种色散补偿和线偏振状态的定义的组合，该色散补偿光纤（PM-DC光纤）在这样高的水平处是双折射的，只有两个正交的线偏振态可以在其中扩散。本发明可用于其中时间脉冲宽度必须尽可能小的锁模光纤激光器。

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