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公开(公告)号：JP2002182251A
公开(公告)日：2002-06-26
申请号：JP2001331209
申请日：2001-10-29
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO
Abstract: PROBLEM TO BE SOLVED: To provide an imaging device which matches a 1st waveguide on a 1st wafer with a 2nd waveguide on a 2nd wafer. SOLUTION: Adaptive type imaging devices 601 and 602 are used on both 1st and 2nd waveguides 502 and 503 where 1st and 2nd wafers 500 and 501 are arranged crossing each other at right angles. The imaging device as an example is arranged in an input plane array and an output plane array abutting against each other at right angles to constitute N×N optical cross connections. Thus, the adaptive imaging device is built in the input plane array and output plane array and then an input tree and an output tree are directly connected to eliminate the need for accurate matching.
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公开(公告)号：JP2000347065A
公开(公告)日：2000-12-15
申请号：JP2000137227
申请日：2000-05-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO , FORD JOSEPH EARL
Abstract: PROBLEM TO BE SOLVED: To provide a router in which free space is combined to a waveguide optical system so as to increase five times or more the number of a channel used in a WDM transmission system. SOLUTION: This optical device is provided with an optical array waveguide router(AWR) 100 receiving input wavelength dividing multiplex(WDM) signals having M pieces (M>1) of wavelength channel and a one-dimensional array 102 of N outputs (1
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公开(公告)号：JP2002191061A
公开(公告)日：2002-07-05
申请号：JP2001288529
申请日：2001-09-21
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO
Abstract: PROBLEM TO BE SOLVED: To provide a large scale N×N cross connect switch the number of components of which is minimized without substantial increase in loss and crosstalk. SOLUTION: The N×N non-blocking optical switch providing connection between N-sets of inputs and N-sets of outputs consists of (1) p-sets of layers 1301 that are formed by N×N configuration, (2) N sets of 1×p input spatial switch 1302 each input of each input spatial switch of which is connected to different inputs and each input spatial switch of which is connected to all the layers, (3) and N sets of p×1 output spatial switch 1303 each output of each output spatial switch of which is connected to different outputs and each output spatial switch of which is connected to all the layers. However (4) each layer consists of 3 steps, the 1st and 3rd steps consist of m×m switches and the 2nd step consists of (N/m2)×(N/m2) non blocking switches.
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公开(公告)号：JP2002152785A
公开(公告)日：2002-05-24
申请号：JP2001260537
申请日：2001-08-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO
Abstract: PROBLEM TO BE SOLVED: To provide an N×N cross connect switch by using the configuration of a smaller wavelength router coupled with a spatial switch when N is great. SOLUTION: The N×N cross connect switch is composed of three stages by using a plurality of input spatial switches, a plurality of (N/m)×(N/m) routers (an integrated form can be efficiently provided by reducing a size N/m thereof) and the plurality of output spatial switches. In each of routes, the number of wavelengths is reduced to 1/m. The input and output spatial switches can be provided by using the configuration of a crossbar or Clos type. As one configuration, each of modulators is coupled with a small spatial switch composed of 2×2 elements. Each of spatial switches can be provided with a little crosstalk by using the expanded configuration.
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公开(公告)号：CA2359548C
公开(公告)日：2005-10-04
申请号：CA2359548
申请日：2001-10-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO
IPC: G02B6/26 , G02B6/12 , G02B6/122 , G02B6/125 , G02B6/34 , G02B6/43 , G02F1/313 , H04Q11/00 , G02B6/42
Abstract: An imaging arrangement technique is used to align a first waveguide on a fir st wafer to a second waveguide on a second wafer. The adaptive imaging arrangement is used on both the first and second waveguides when the first and second wafer s are orthogonal to each other. In one embodiment, my imaging arrangement is used in an N x N optical cross-connect constructed using orthogonal abutting input and output planar arrays of N switches. If N is not too large, the optimum construction involves only two stages of trees, each incorporating an adaptive imaging arrangement allowing the input and output trees to be directly joined together without need for precise alignment.
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Patent Agency Ranking
公开(公告)号：CA2359548A1
公开(公告)日：2002-05-01
申请号：CA2359548
申请日：2001-10-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO
IPC: G02B6/26 , G02B6/12 , G02B6/122 , G02B6/125 , G02B6/34 , G02B6/43 , G02F1/313 , H04Q11/00 , G02B6/42
Abstract: An imaging arrangement technique is used to align a first waveguide on a fir st wafer to a second waveguide on a second wafer. The adaptive imaging arrangement is used on both the first and second waveguides when the first and second wafer s are orthogonal to each other. In one embodiment, my imaging arrangement is used in an N x N optical cross-connect constructed using orthogonal abutting input and output planar arrays of N switches. If N is not too large, the optimum construction involves only two stages of trees, each incorporating an adaptive imaging arrangement allowing the input and output trees to be directly joined together without need for precise alignment.
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公开(公告)号：ATE410847T1
公开(公告)日：2008-10-15
申请号：AT00303681
申请日：2000-05-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO , FORD JOSEPH EARL
Abstract: A router combines free-space and guided wave optics to drastically increase the number of channels used in WDM transmission systems. The two-stage router uses the partial demultiplexing characteristic of an arrayed waveguide router (AWR) combined with a free-space optical router to fully demultiplex an input WDM signal. The two-stage router can be used to obtain output wavelength signals in either one- or two- dimensional arrays.
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公开(公告)号：AT410847T
公开(公告)日：2008-10-15
申请号：AT00303681
申请日：2000-05-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO , FORD JOSEPH EARL
Abstract: A router combines free-space and guided wave optics to drastically increase the number of channels used in WDM transmission systems. The two-stage router uses the partial demultiplexing characteristic of an arrayed waveguide router (AWR) combined with a free-space optical router to fully demultiplex an input WDM signal. The two-stage router can be used to obtain output wavelength signals in either one- or two- dimensional arrays.
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公开(公告)号：CA2353744A1
公开(公告)日：2002-02-28
申请号：CA2353744
申请日：2001-07-24
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO
Abstract: An N x N crossconnect switch, for large N, is implemented using an arrangement of smaller wavelength routers combined with space switches. An N x N crossconnect switch is constructed in three stages, using a plurality of inp ut space switches, a plurality of (N/m) x(N/m) router (whose reduced size N/m allows efficient realization in integrated form), and a plurality of output space switches. I n the router, the number of wavelengths is reduced by a factor m. The input and output spa ce switches can be implemented using crossbar or Clos type construction. In one arrangement each modulator is combined with a small space switch consisting of 2 x 2 elements. Each space switch can be realized with negligible crosstalk by usi ng a dilated arrangement.
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公开(公告)号：DE60040431D1
公开(公告)日：2008-11-20
申请号：DE60040431
申请日：2000-05-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DRAGONE CORRADO PIETRO , FORD JOSEPH EARL
IPC: G02B6/12 , H04J14/02 , G02B6/293 , G02B6/34 , G02B6/35 , H04B10/27 , H04B10/29 , H04B10/291 , H04J14/00 , H04Q11/00
Abstract: A router combines free-space and guided wave optics to drastically increase the number of channels used in WDM transmission systems. The two-stage router uses the partial demultiplexing characteristic of an arrayed waveguide router (AWR) combined with a free-space optical router to fully demultiplex an input WDM signal. The two-stage router can be used to obtain output wavelength signals in either one- or two- dimensional arrays.
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