专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100296818A1 COST EFFECTIVE OPTICAL TRANSMISSION WITH FAST RAMAN TILT TRANSIENT CONTROL 有权
标题翻译：具有快速拉曼倾斜瞬态控制的成本有效的光学传输
公开(公告)号：US20100296818A1
公开(公告)日：2010-11-25
申请号：US12264873
申请日：2008-11-04
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H04B10/12 , H01S3/30
CPC分类号： H01S3/302 , H01S3/06758 , H01S3/10015 , H01S3/1301 , H04B10/2916
摘要： A method for cost-effective optical transmission with fast Raman tilt or other transient event control uses a combination of Erbium-doped fiber amplifiers (EDFAs) and Raman fiber amplifiers (RFAs), where EDFAs are used as the primary optical amplifiers to compensate the span loss while the RFA (advantageously a forward-pumped RFA) is used only in some specific spans with a feed-forward control circuit serving as a fast Raman tilt transient compensator, the RFA also serving as an optical amplifier. A long haul optical transmission system using feed-forward controlled RFA's periodically spaced along its length, for example, when add-drop multiplexing is used, makes full use of the economics of EDFAs and the fast tilt transient control capability of a RFA enabled by an adjustable speed feed-forward or feed-back control technique.
摘要翻译：具有快速拉曼倾斜或其他瞬态事件控制的具有成本效益的光传输方法使用铒掺杂光纤放大器（EDFA）和拉曼光纤放大器（RFAs）的组合，其中EDFA用作主要光放大器以补偿跨度损失，而RFA（有利地是前馈RFA）仅在具有用作快速拉曼倾斜瞬态补偿器的前馈控制电路的某些特定跨度中使用，RFA也用作光放大器。使用前馈控制RFA的长距离光传输系统，例如当使用插入多路复用时，其长度周期性地间隔开，从而充分利用了EDFA的经济性和由RFA实现的RFA的快速倾斜瞬态控制能力可调速度前馈或反馈控制技术。

2. 发明授权

US07415206B1 Arrangement for characterizing and reducing multi-path interference (MPI) and/or optical return loss (ORL) in optical transmission links having multiple discrete reflection sources 有权
标题翻译：在具有多个离散反射源的光传输链路中表征和减少多路径干扰（MPI）和/或光回波损耗（ORL）的布置
公开(公告)号：US07415206B1
公开(公告)日：2008-08-19
申请号：US11073121
申请日：2005-03-04
申请人： Martin Birk , Xiang Zhou
发明人： Martin Birk , Xiang Zhou
IPC分类号： H04B10/08
CPC分类号： H04B10/071
摘要： In an optical transmission link having discrete optical reflection sources that cause multi path interference (MPI) and optical return loss (ORL), a method determines how to reduce to beneath a predetermined threshold, a predetermined phenomenon (MPI or ORL or a composite of the two). The method involves (408/428/458) measuring link parameters of the optical transmission link using an optical reflectometry technique, (410/430/460) calculating a level of the predetermined phenomenon based on the link parameters, and (416/436/466) simulating replacement of a number of the reflection sources until the calculated level of the predetermined phenomenon is reduced to less than the predetermined threshold. The method may be performed within a portable optical reflectometry device to facilitate field simulations.
摘要翻译：在具有引起多路径干扰（MPI）和光回波损耗（ORL）的离散光学反射源的光传输链路中，一种方法确定如何减小到预定阈值以下，预定现象（MPI或ORL或二）。该方法涉及（408/428/458）使用光学反射测量技术测量光传输链路的链路参数（410/430/460），基于链路参数来计算预定现象的级别，（416/436/458） 466）模拟多个反射源的替换，直到计算出的预定现象的水平降低到小于预定阈值。该方法可以在便携式光学反射测量装置内执行以便于现场模拟。

3. 发明授权

US07277221B2 Fast dynamic gain control in cascaded Raman fiber amplifiers 有权
公开(公告)号：US07277221B2
公开(公告)日：2007-10-02
申请号：US11424315
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S4/00
CPC分类号： H04B10/296 , H01S3/005 , H01S3/06754 , H01S3/06758 , H01S3/06766 , H01S3/0677 , H01S3/094011 , H01S3/094046 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/1301 , H01S3/302 , H01S2301/04 , H01S2301/06 , H04B10/2916 , H04B10/2942
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.

4. 发明申请

US20070109625A1 Fast Dynamic Gain Control in Cascaded Raman Fiber Amplifiers 有权
标题翻译：级联拉曼光纤放大器的快速动态增益控制
公开(公告)号：US20070109625A1
公开(公告)日：2007-05-17
申请号：US11424309
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S3/00
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/302 , H01S2301/04 , H01S2301/06 , H04B10/2916 , H04B10/2942 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.
摘要翻译：本发明提供了用于控制具有正向光泵和反向光泵的双向泵浦拉曼光纤放大器的增益的方法和装置。通过调整正向光泵来控制总体增益，而反向光泵的功率电平基本上是固定的。增益电路以开环配置工作，并且使用将至少一个波长区域的功率变化与至少一个正向光泵的泵浦功率调整相关联的预定功能。输入信号功率变化与所需泵浦功率调整之间的两个近似线性关系用于控制拉曼光纤放大器。每个近似线性关系包括至少一个线性系数，其涉及特定波长区域的功率变化和特定拉曼泵的功率调整。

5. 发明授权

US07554719B2 Fast dynamic gain control in an optical fiber amplifier 有权
标题翻译：光纤放大器中的快速动态增益控制
公开(公告)号：US07554719B2
公开(公告)日：2009-06-30
申请号：US11858501
申请日：2007-09-20
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H04B10/17 , H04B10/12
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094096 , H01S3/10015 , H01S2301/04 , H04B10/2916 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of an optical fiber amplifier. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump. The dynamic gain control technique is applicable to an Erbium-doped fiber/waveguide amplifier. Also, a dynamic gain control technique controls a backward-pumped Raman amplifier, in which the power variation is determined at one geographical location and the optical pumps are controlled at another geographical location.
摘要翻译：本发明提供了用于控制光纤放大器的增益的方法和装置。增益电路以开环配置工作，并且使用将至少一个波长区域的功率变化与用于至少一个光泵的泵功率调整相关联的预定功能。输入信号功率变化与所需泵浦功率调整之间的两个近似线性关系用于控制拉曼光纤放大器。每个近似线性关系包括至少一个线性系数，其涉及特定波长区域的功率变化和特定拉曼泵的功率调整。动态增益控制技术适用于掺铒光纤/波导放大器。此外，动态增益控制技术控制反向泵浦拉曼放大器，其中在一个地理位置确定功率变化，并且将光泵控制在另一地理位置。

6. 发明授权

US07436582B2 Fast dynamic gain control in a bidirectionally-pumped Raman fiber amplifier 有权
标题翻译：双向泵浦拉曼光纤放大器中的快速动态增益控制
公开(公告)号：US07436582B2
公开(公告)日：2008-10-14
申请号：US11424312
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S4/00 , H04B10/12
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094011 , H01S3/094046 , H01S3/094096 , H01S3/10015 , H01S3/1301 , H01S2301/04 , H04B10/2916 , H04B10/2942 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.
摘要翻译：本发明提供了用于控制具有正向光泵和反向光泵的双向泵浦拉曼光纤放大器的增益的方法和装置。通过调整正向光泵来控制总体增益，而反向光泵的功率电平基本上是固定的。增益电路以开环配置工作，并且使用将至少一个波长区域的功率变化与至少一个正向光泵的泵浦功率调整相关联的预定功能。输入信号功率变化与所需泵浦功率调整之间的两个近似线性关系用于控制拉曼光纤放大器。每个近似线性关系包括至少一个线性系数，其涉及特定波长区域的功率变化和特定拉曼泵的功率调整。

7. 发明授权

US07280271B2 Fast dynamic gain control in cascaded Raman fiber amplifiers 有权
公开(公告)号：US07280271B2
公开(公告)日：2007-10-09
申请号：US11424314
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S4/00 , H04B10/12
CPC分类号： H04B10/296 , H01S3/005 , H01S3/06754 , H01S3/06758 , H01S3/06766 , H01S3/0677 , H01S3/094011 , H01S3/094046 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/1301 , H01S3/302 , H01S2301/04 , H01S2301/06 , H04B10/2916 , H04B10/2942
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.

8. 发明授权

US07280270B2 Fast dynamic gain control in cascaded Raman fiber amplifiers 有权
标题翻译：级联拉曼光纤放大器的快速动态增益控制
公开(公告)号：US07280270B2
公开(公告)日：2007-10-09
申请号：US11424309
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S4/00 , H04B10/12
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/302 , H01S2301/04 , H01S2301/06 , H04B10/2916 , H04B10/2942 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.
摘要翻译：本发明提供了用于控制具有正向光泵和反向光泵的双向泵浦拉曼光纤放大器的增益的方法和装置。通过调整正向光泵来控制总体增益，而反向光泵的功率电平基本上是固定的。增益电路以开环配置工作，并且使用将至少一个波长区域的功率变化与至少一个正向光泵的泵浦功率调整相关联的预定功能。输入信号功率变化与所需泵浦功率调整之间的两个近似线性关系用于控制拉曼光纤放大器。每个近似线性关系包括至少一个线性系数，其涉及特定波长区域的功率变化和特定拉曼泵的功率调整。

9. 发明申请

US20070109626A1 Fast Dynamic Gain Control in a Bidirectionally-Pumped Raman Fiber Amplifier 有权
公开(公告)号：US20070109626A1
公开(公告)日：2007-05-17
申请号：US11424312
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S3/00
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094011 , H01S3/094046 , H01S3/094096 , H01S3/10015 , H01S3/1301 , H01S2301/04 , H04B10/2916 , H04B10/2942 , H04B10/296
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.

10. 发明申请

US20070109623A1 Fast Dynamic Gain Control in a Bidirectionally-Pumped Raman Fiber Amplifier 审中-公开
标题翻译：双向泵浦拉曼光纤放大器中的快速动态增益控制
公开(公告)号：US20070109623A1
公开(公告)日：2007-05-17
申请号：US11424305
申请日：2006-06-15
申请人： Xiang Zhou , Martin Birk
发明人： Xiang Zhou , Martin Birk
IPC分类号： H01S3/00
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/06766 , H01S3/0677 , H01S3/094096 , H01S3/10015 , H01S3/302 , H01S2301/04 , H01S2301/06 , H04B10/2916
摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.
摘要翻译：本发明提供了用于控制具有正向光泵和反向光泵的双向泵浦拉曼光纤放大器的增益的方法和装置。通过调整正向光泵来控制总体增益，而反向光泵的功率电平基本上是固定的。增益电路以开环配置工作，并且使用将至少一个波长区域的功率变化与至少一个正向光泵的泵浦功率调整相关联的预定功能。输入信号功率变化与所需泵浦功率调整之间的两个近似线性关系用于控制拉曼光纤放大器。每个近似线性关系包括至少一个线性系数，其涉及特定波长区域的功率变化和特定拉曼泵的功率调整。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式