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1. 发明申请

US20050084211A1 Method and apparatus for implementing a multi-channel tunable filter 失效
标题翻译：用于实现多通道可调谐滤波器的方法和装置
公开(公告)号：US20050084211A1
公开(公告)日：2005-04-21
申请号：US11004319
申请日：2004-12-03
申请人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
发明人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
IPC分类号： G02B6/34
CPC分类号： G02B6/2931 , G02B6/29311 , G02B6/29316 , G02B6/29395 , G03H2260/54
摘要： The present invention provides a multi-channel turnable filter and methods for making such a filter. In one embodiment, the filter comprises a bank of gratings imprinted into a filter material, such as Lithium Niobate. In another embodiment, the filter comprises a bank of gratings imprinted on a thin-film filter. An optical read-head comprising a pair of lenses is configured to pass light from within an optical fiber carrying multiple wavelengths through an appropriate grating to extract or drop a specific wavelength. To ensure continuous data transmission, the filter is tuned to a wavelength by configuring the read-head to move in a hitless manner. In one embodiment, the gratings are recorded by the interference of two beams. A first plane wave reflects off a first mirror stack and a second plane wave reflects off a second mirror stack In another embodiment, the gratings are recorded by a phase masking method.
摘要翻译：本发明提供一种多通道可转换滤波器及其制造方法。在一个实施例中，滤光器包括印刷到过滤材料中的一组光栅，例如铌酸锂。在另一个实施例中，滤光器包括压印在薄膜滤光片上的一组光栅。包括一对透镜的光学读取头被配置为使来自携带多个波长的光纤内的光通过适当的光栅以提取或降低特定波长。为了确保连续的数据传输，通过配置读取头以无限的方式移动，将滤波器调谐到一个波长。在一个实施例中，光栅由两个光束的干涉来记录。第一平面波反射离开第一反射镜叠层，而第二平面波从第二反射镜堆叠反射。在另一个实施例中，通过相位掩蔽方法记录光栅。

2. 发明授权

US07483190B2 Method and apparatus for implementing a multi-channel tunable filter 失效
标题翻译：用于实现多通道可调谐滤波器的方法和装置
公开(公告)号：US07483190B2
公开(公告)日：2009-01-27
申请号：US11371506
申请日：2006-03-08
申请人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
发明人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
IPC分类号： G02B5/32
CPC分类号： G02B5/201 , G02B5/203 , G02B5/32 , G02B6/29311 , G02B6/29361 , G02B6/29395 , G02B6/3508 , G02B6/355 , G03H2001/0268
摘要： The present invention provides a multi-channel tunable filter and methods for making such a filter. In one embodiment, the filter comprises a bank of gratings or a continuously varying filter frequency imprinted into a filter material, such as Lithium Niobate or glass or polymer. An optical read-head comprising a pair of lenses is configured to pass light from within an optical fiber carrying multiple wavelengths through an appropriate grating to extract or drop a specific wavelength. To ensure continuous data transmission, the filter is tuned to a wavelength by configuring the read-head to move in a hitless manner. In one embodiment, the gratings are recorded by the interference of two beams. A first plane wave reflects off a first mirror stack and a second plane wave reflects off a second mirror stack. In another embodiment, the gratings are recorded by a phase masking method.
摘要翻译：本发明提供一种多通道可调谐滤波器及其制造方法。在一个实施例中，滤波器包括一组光栅或连续变化的滤光器频率，其被印刷到过滤材料中，例如铌酸锂或玻璃或聚合物。包括一对透镜的光学读取头被配置为使来自携带多个波长的光纤内的光通过适当的光栅以提取或降低特定波长。为了确保连续的数据传输，通过配置读取头以无限的方式移动，将滤波器调谐到一个波长。在一个实施例中，光栅由两个光束的干涉来记录。第一平面波反射离开第一反射镜叠层，而第二平面波从第二反射镜叠层反射。在另一个实施例中，通过相位掩蔽法记录光栅。

3. 发明授权

US07136206B2 Method and apparatus for implementing a multi-channel tunable filter 失效
公开(公告)号：US07136206B2
公开(公告)日：2006-11-14
申请号：US11004319
申请日：2004-12-03
申请人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
发明人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
IPC分类号： G03H1/02
CPC分类号： G02B6/2931 , G02B6/29311 , G02B6/29316 , G02B6/29395 , G03H2260/54
摘要： The present invention provides a multi-channel tunable filter and methods for making such a filter. In one embodiment, the filter comprises a bank of gratings imprinted into a filter material, such as Lithium Niobate. In another embodiment, the filter comprises a bank of gratings imprinted on a thin-film filter. An optical read-head comprising a pair of lenses is configured to pass light from within an optical fiber carrying multiple wavelengths through an appropriate grating to extract or drop a specific wavelength. To ensure continuous data transmission, the filter is tuned to a wavelength by configuring the read-head to move in a hitless manner. In one embodiment, the gratings are recorded by the interference of two beams. A first plane wave reflects off a first mirror stack and a second plane wave reflects off a second mirror stack. In another embodiment, the gratings are recorded by a phase masking method.

4. 发明申请

US20060156241A1 Method and apparatus for implementing a multi-channel tunable filter 失效
公开(公告)号：US20060156241A1
公开(公告)日：2006-07-13
申请号：US11371506
申请日：2006-03-08
申请人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
发明人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
IPC分类号： G06F17/00 , G06F3/00 , G06F9/00
CPC分类号： G02B5/201 , G02B5/203 , G02B5/32 , G02B6/29311 , G02B6/29361 , G02B6/29395 , G02B6/3508 , G02B6/355 , G03H2001/0268
摘要： The present invention provides a multi-channel tunable filter and methods for making such a filter. In one embodiment, the filter comprises a bank of gratings or a continuously varying filter frequency imprinted into a filter material, such as Lithium Niobate or glass or polymer. An optical read-head comprising a pair of lenses is configured to pass light from within an optical fiber carrying multiple wavelengths through an appropriate grating to extract or drop a specific wavelength. To ensure continuous data transmission, the filter is tuned to a wavelength by configuring the read-head to move in a hitless manner. In one embodiment, the gratings are recorded by the interference of two beams. A first plane wave reflects off a first mirror stack and a second plane wave reflects off a second mirror stack. In another embodiment, the gratings are recorded by a phase masking method.

5. 发明授权

US06987907B2 Tunable holographic drop filter with quasi phase-conjugate fiber coupling 有权
公开(公告)号：US06987907B2
公开(公告)日：2006-01-17
申请号：US10006933
申请日：2001-12-04
申请人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede , Joseph W. Goodman
发明人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede , Joseph W. Goodman
IPC分类号： G02B6/26
CPC分类号： G02B6/29308 , G02B6/29311 , G02B6/29314 , G02B6/29382 , G02B6/29395
摘要： The present invention is a method and apparatus for a rotating, tunable, holographic drop filter connected to a fiber optic source. The filter uses a quasi phase-conjugate optical system for a drop-channel fiber coupling and WDM channels which are introduced to the system. The light from these channels is collimated and passed through a volume phase holographic material so that only one WDM channel is diffracted and the rest pass through the holographic material unaffected. A quasi phase-conjugate diffracted beam is generated by the optical system to reflect the diffracted channel back towards the holographic material. The reflected light is Bragg matched to the holographic material so that it is re-diffracted along a path identical to the original incident light beam. A free-space circulator may be used to direct the diffracted beam to a fiber optic collimator, which is different from the fiber optic collimator of the incident light beam.

6. 发明授权

US06829067B2 Method and apparatus for implementing a multi-channel tunable filter 失效
标题翻译：用于实现多通道可调谐滤波器的方法和装置
公开(公告)号：US06829067B2
公开(公告)日：2004-12-07
申请号：US10006934
申请日：2001-12-04
申请人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
发明人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede
IPC分类号： G02B532
CPC分类号： G02B6/2931 , G02B6/29311 , G02B6/29316 , G02B6/29395 , G03H2260/54
摘要： The present invention provides a multi-channel tunable filter and methods for making such a filter. In one embodiment, the filter comprises a bank of gratings imprinted into a filter material, such as Lithium Niobate. In another embodiment, the filter comprises a bank of gratings imprinted on a thin-film filter. An optical read-head comprising a pair of lenses is configured to pass light from within an optical fiber carrying multiple wavelengths through an appropriate grating to extract or drop a specific wavelength. To ensure continuous data transmission, the filter is tuned to a wavelength by configuring the read-head to move in a hitless manner. In one embodiment, the gratings are recorded by the interference of two beams. A first plane wave reflects off a first mirror stack and a second plane wave reflects off a second mirror stack. In another embodiment, the gratings are recorded by a phase masking method.
摘要翻译：本发明提供一种多通道可调谐滤波器及其制造方法。在一个实施例中，滤光器包括印刷到过滤材料中的一组光栅，例如铌酸锂。在另一个实施例中，滤光器包括压印在薄膜滤光片上的一组光栅。包括一对透镜的光学读取头被配置为使来自携带多个波长的光纤内的光通过适当的光栅以提取或降低特定波长。为了确保连续的数据传输，通过配置读取头以无限的方式移动，将滤波器调谐到一个波长。在一个实施例中，光栅由两个光束的干涉来记录。第一平面波反射离开第一反射镜叠层，而第二平面波从第二反射镜叠层反射。在另一个实施例中，通过相位掩蔽法记录光栅。

7. 发明申请

US20050265656A1 Holographic pump coupler and laser grating reflector 失效
标题翻译：全息泵耦合器和激光光栅反射器
公开(公告)号：US20050265656A1
公开(公告)日：2005-12-01
申请号：US11092392
申请日：2005-03-29
申请人： Christophe Moser , Karsten Buse , Demetri Psaltis
发明人： Christophe Moser , Karsten Buse , Demetri Psaltis
IPC分类号： G02B6/34 , H01S3/094
CPC分类号： G02B6/34 , H01S3/094003
摘要： In the present invention, a volume holographic optical element is used as a pump coupler. The holographic coupler allows at least one pump wavelength to be coupled into the laser medium. The direction of the pump beam onto the coupler is not co-linear with the direction of the signal beam out of the coupler. The invention further provides the coupling of more than one pump wavelengths using a single holographic coupler element while maintaining the high isolation between pump and signal beam. The invention further provides a narrow-band reflection grating of various efficiencies for the signal beam (as part of the laser cavity).
摘要翻译：在本发明中，使用体积全息光学元件作为泵耦合器。全息耦合器允许至少一个泵波长耦合到激光介质中。泵浦光束到耦合器上的方向与信号光束离开耦合器的方向不是共线的。本发明还提供了使用单个全息耦合器元件的多于一个的泵浦波长的耦合，同时保持了泵浦和信号波束之间的高隔离度。本发明还提供了用于信号光束（作为激光腔的一部分）的各种效率的窄带反射光栅。

8. 发明授权

US07542639B2 Holographic pump coupler and laser grating reflector 失效
标题翻译：全息泵耦合器和激光光栅反射器
公开(公告)号：US07542639B2
公开(公告)日：2009-06-02
申请号：US11092392
申请日：2005-03-29
申请人： Christophe Moser , Karsten Buse , Demetri Psaltis
发明人： Christophe Moser , Karsten Buse , Demetri Psaltis
IPC分类号： G02B6/34 , G02B5/32 , G03H1/28
CPC分类号： G02B6/34 , H01S3/094003
摘要： In the present invention, a volume holographic optical element is used as a pump coupler. The holographic coupler allows at least one pump wavelength to be coupled into the laser medium. The direction of the pump beam onto the coupler is not co-linear with the direction of the signal beam out of the coupler. The invention further provides the coupling of more than one pump wavelengths using a single holographic coupler element while maintaining the high isolation between pump and signal beam. The invention further provides a narrow-band reflection grating of various efficiencies for the signal beam (as part of the laser cavity).
摘要翻译：在本发明中，使用体积全息光学元件作为泵耦合器。全息耦合器允许至少一个泵波长耦合到激光介质中。泵浦光束到耦合器上的方向与信号光束离开耦合器的方向不是共线的。本发明还提供了使用单个全息耦合器元件的多于一个的泵浦波长的耦合，同时保持了泵浦和信号波束之间的高隔离度。本发明还提供了用于信号光束（作为激光腔的一部分）的各种效率的窄带反射光栅。

9. 发明授权

US06844946B2 Tunable holographic filter 失效
标题翻译：可调谐全息滤光片
公开(公告)号：US06844946B2
公开(公告)日：2005-01-18
申请号：US09823173
申请日：2001-03-29
申请人： Karsten Buse , Demetri Psaltis
发明人： Karsten Buse , Demetri Psaltis
IPC分类号： G02B5/32 , G02B6/34 , G02F1/03
CPC分类号： G02B6/29322 , G02B5/32 , G02B6/29383 , G02B6/34 , G02F1/0338
摘要： An optical add/drop filter is formed using a hologram which is tuned to a wavelength in an optical signal. The diffraction condition of the hologram may be varied to vary the in add or drop content.
摘要翻译：使用调谐到光信号中的波长的全息图来形成光学分插滤波器。可以改变全息图的衍射条件以改变添加或降落内容。

10. 发明授权

US6157470A Non-volatile holographic storage in doubly-doped photorefractive material 有权
$Non-volatile holographic storage in doubly-doped photorefractive material$
标题翻译：双重掺杂光折射材料中的非挥发性全息存储
公开(公告)号：US6157470A
公开(公告)日：2000-12-05
申请号：US260523
申请日：1999-02-25
申请人： Karsten Buse , Ali Adibi , Demetri Psaltis
发明人： Karsten Buse , Ali Adibi , Demetri Psaltis
IPC分类号： G03H1/02 , G03H1/04 , G11C11/22
CPC分类号： G03H1/02 , G03H2001/026 , G03H2001/0268
摘要： A non-volatile holographic recording method and system based on a doubly-doped photorefractive material. One embodiment of the holographic material is doped to have first and second types of dopants that are operable to produce charge carriers to a common band in response to radiation of a specified wavelengths. Charge carriers in the common band can migrate to a different spatial location. The dopants are also capable of recombining with charge carriers in the common band. The first type of dopants have a first dopant energy level below the band by a first energy gap greater than a second energy gap of a second dopant energy level of the second type of dopants below the common band. The first and second dopant energy levels are separated from each other so that their absorption bands to the common band are substantially separated. In addition, the first and second energy gaps should be much greater than the thermal energy k.sub.B T associated with the operating temperature T in order to substantially reduce or minimize the probability of thermal excitation of charge carriers.
摘要翻译：一种基于双掺杂光折射材料的非挥发性全息记录方法和系统。全息材料的一个实施例被掺杂以具有第一和第二类型的掺杂剂，其可操作以响应于指定波长的辐射而将电荷载流子产生到公共带。公共频带中的电荷载体可迁移到不同的空间位置。掺杂剂也能够与共同带中的电荷载体重新组合。第一种类型的掺杂剂具有低于该带宽的第一掺杂剂能级，该第一掺杂剂能级大于第二类掺杂剂低于该共同带的第二掺杂剂能级的第二能隙。第一和第二掺杂剂能级彼此分离，使得它们对公共带的吸收带基本上分离。此外，第一和第二能隙应远大于与工作温度T相关联的热能kBT，以便基本上减少或最小化电荷载体的热激发的概率。

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