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1. 发明公开

EP1425617A1 ALIGNMENT OF MULTI-CHANNEL DIFFRACTIVE WDM DEVICE 审中-公开
标题翻译：对准一个多通道衍射WDM设备的
公开(公告)号：EP1425617A1
公开(公告)日：2004-06-09
申请号：EP02767348.2
申请日：2002-08-08
申请人： Ibsen Photonics A/S , Khalfaoui, Chaker , Theodor, Keld , Bastue, Jens , Rose, Bjarke
发明人： KHALFAOUI, Chaker , THEODOR, Keld , BASTUE, Jens , ROSE, Bjarke
IPC分类号： G02B6/34
CPC分类号： G02B6/27 , G02B6/2706 , G02B6/29311 , G02B6/29313 , G02B6/2938 , G02B6/29383 , G02B6/29385
摘要： A method and apparatus are presented for aligning a diffractive WDM device that includes i) a multi-channel, light handling device having a selected channel spacing and ii) a multi-channel signal input unit. The method includes adjusting a direction of incidence of an optical signal from the input unit on at least a first diffracting element of the WDM device so as to set an actual optical channel spacing at an output region of the WDM device to be approximately equal to the selected channel spacing of the multi-channel, light handling device. In the apparatus, the orientation of the light input unit is adjustable in a direction parallel to a diffraction plane of the diffractive WDM device so as to select an actual channel spacing at the multi-channel, light handling device that is approximately equal to the selected channel spacing.

2. 发明授权

EP1144965B1 SPECTROMETER 有权
标题翻译：光谱仪
公开(公告)号：EP1144965B1
公开(公告)日：2004-11-24
申请号：EP00900491.2
申请日：2000-01-07
申请人： Ibsen Photonics A/S
发明人： IBSEN, Per, Eld , ROSE, Bjarke , RASMUSSEN, Michael
IPC分类号： G01J3/18 , G01J3/28 , G01J3/02
CPC分类号： G01J3/00 , G01J3/0256 , G01J3/0259 , G01J3/0278 , G01J3/0294 , G01J3/18 , G01J3/2803
摘要： A method and apparatus for measuring spectral information of light from at least one object (15); said apparatus comprising at least one light detecting means (34); and at least one transparent body (31) having a front side (F) including: an entrance surface (311) having positioned in or near thereof an entrance aperture means (30), and at least one reflecting surface (312); and said transparent body further having a back side (B) including: at least one reflecting surface (313) for reflecting light received from said entrance aperture means, and an exit surface (314); said detecting means being positioned in or near said exit surface; said first reflecting surface, said second reflecting surface, or both, having at least one diffractive optical element (32) and/or at least one focusing means (33). Such apparatus comprising more spectral channels, and such apparatus comprising distance sensing means.
摘要翻译：用于测量来自至少一个物体的光的光谱信息的方法和装置包括至少一个光检测器和至少一个透明体。透明体具有前侧，具有入口孔和至少一个反射面。透明体还具有包括至少一个反射表面和出射表面的背面。检测器位于出口表面附近。前反射表面和后反射表面中的至少一个包括衍射光学元件，其被布置成接收来自孔的发散光。聚焦元件将衍射光聚焦到出射表面。该装置可以包括多个通道，并且还可以包括用于测量到物体的距离的装置。

3. 发明公开

EP1366379A2 GRATING STRUCTURES AND METHODS OF MAKING THE GRATING STRUCTURES 审中-公开
标题翻译：格子结构和晶格结构的制作方法
公开(公告)号：EP1366379A2
公开(公告)日：2003-12-03
申请号：EP02741110.7
申请日：2002-02-20
申请人： Ibsen Photonics A/S
发明人： HOLM, Johan, Christer , MADSEN, Henrik , WEICHEL, Steen , IBSEN, Per, Eld , ROSE, Bjarke
IPC分类号： G02B5/18
CPC分类号： G02B5/1847 , G02B5/1866
摘要： New grating structures include a bonded transmission grating structure. The grating structure is encapsulated by two pieces that are bonded together. In addition, a new method of making grating structures includes forming wells with an aspect ratio (depth:width) of at least 3:1, 7:1 or greater. Such grating structures can be used to form gratings with high diffraction efficiencies for both TE and TM polarezations of light.

4. 发明公开

EP1400047A2 WAVELENGTH DIVISION MULTIPLEXED DEVICE 审中-公开
标题翻译：波分复用设备
公开(公告)号：EP1400047A2
公开(公告)日：2004-03-24
申请号：EP02742455.5
申请日：2002-02-20
申请人： Ibsen Photonics A/S
发明人： ROSE, Bjarke , RASMUSSEN, Thomas , KHALFAOUI, Chaker , RASMUSSEN, Michael , BASTU, Jens , IBSEN, Per, Eld , PEDERSON, Claus
IPC分类号： H04J14/02 , G02B6/34
CPC分类号： H04J14/0212 , G02B6/2713 , G02B6/2793 , G02B6/29311 , G02B6/29313 , G02B6/29383 , G02B6/3512 , G02B6/3514 , G02B6/4215 , H04B10/077 , H04B10/07955 , H04J14/02
摘要： A wavelength division multiplexed device is based on a transmission grating spectrometer having at least two diffractive optical elements. The WDM device provides flexible use and may be widely applied in WDM systems. The device is useful for multiplexing and demultiplexing, channel monitoring, and for adding and dropping channels. The device provides programmability in use as an add/drop multiplexer.

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