公开(公告)号：CA2384071C

公开(公告)日：2006-01-24

申请号：CA2384071

申请日：2002-04-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FORD JOSEPH EARL ,  RYF ROLAND ,  NEILSON DAVID THOMAS ,  GILES RANDY CLINTON

IPC: G02B26/08 ,  B81B7/02 ,  G02B6/35 ,  G02B6/43

Abstract: In an all optical switch an imaging system is interposed between the micro lens array and the moveable micro mirrors of a MEMS device to which, or from whic h, the light beams are directed. This causes an image of the micro lens array to be formed at the MEMS device, or vice-versa, thus effectively eliminating the distance between the micro lens array and the MEMS device. The imaging system may be a telecentri c system. The size of the arrangement may be reduced by compacting the optical path, e.g., using appropriate conventional mirrors, and/or employing folded arrangements, i.e., arrangements in which there is only one MEMS device stage that does double duty for both input and output through the use of at least one conventional mirro r. The overall system is arranged to account for any inversions introduced.

公开(公告)号：CA2253752C

公开(公告)日：2002-10-08

申请号：CA2253752

申请日：1998-11-10

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FATEHI MOHAMMAD TAGHI ,  FORD JOSEPH EARL

IPC: G02B26/08 ,  H04Q11/00 ,  H04B10/10 ,  H04Q3/52

Abstract: A free-space N by M where N and M > 1 optical signal switch (OXC) requires only transmitter beam steering for controlling to which receiver an optical signal from a transmitter is directed. In a preferred embodiment the transmi tters handle single mode optical signals and the receivers handle multimode optica l signals. The OXC may optionally include a fixed optical unit implemented usi ng either a single fixed shared lens or a plurality of M optical elements for further directing each of the M optical signals to their respective receivers.

公开(公告)号：CA2262764A1

公开(公告)日：1999-09-12

申请号：CA2262764

申请日：1999-02-24

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FORD JOSEPH EARL ,  WOODWARD TED KIRK

IPC: H01L31/10 ,  G01J3/18 ,  G01J3/28 ,  G01J3/36 ,  G02B6/34 ,  G02B6/42 ,  H04B10/02 ,  H04B10/08 ,  H04J14/02

Abstract: An optical spectrometer comprising an optical dispersive element for spatially dispersing an incoming optical signal including at least one wavelength, and an integrated optoelectronic device including a plurality of detectors for linearly detecting the at least one wavelength signal and integrated with a processor chip for processing the resulting electrical intensity signals from the detected at least one wavelength signal.

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.

公开(公告)号：CA2253752A1

公开(公告)日：1999-06-05

申请号：CA2253752

申请日：1998-11-10

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FATEHI MOHAMMAD TAGHI ,  FORD JOSEPH EARL

IPC: G02B26/08 ,  H04Q11/00 ,  H04B10/10 ,  H04Q3/52

Abstract: A free-space N by M where N and M > 1 optical signal switch (OXC) requires only transmitter beam steering for controlling to which receiver an opt ical signal from a transmitter is directed. In a preferred embodiment the transmitter s handle single mode optical signals and the receivers handle multimode optical signals. The OXC may optionally include a fixed optical unit implemented using e ither a single fixed shared lens or a plurality of M optical elements for further dire cting each of the M optical signals to their respective receivers.

公开(公告)号：EP0800103A3

公开(公告)日：1998-09-02

申请号：EP97302012

申请日：1997-03-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FORD JOSEPH EARL

IPC: G02B6/00 ,  G02B6/04 ,  G02B6/35 ,  G02B26/08 ,  G02B26/02

CPC classification number: G02B6/359 ,  G02B6/3512 ,  G02B6/3528 ,  G02B6/3556 ,  G02B6/3568

Abstract: An optical switching device and method for selectively optically connecting at least one input fiber in a fiber bundle to at least one output fiber in a fiber bundle. To perform the optical switching, a light directing mechanism is provided proximate a face of a fiber bundle that contains the input fiber. The light from the input fiber is directed toward the output fibers by varying the orientation of the light directing mechanism relative the face of the fiber bundle. The light directing mechanism thereby enables the light from the input fiber to be selectively directed to each of the output fibers. By selectively controlling the orientation of the light directing mechanism, the light from the input fiber can be scanned to any number of output fibers, thereby producing a 1 X N optical switch.

公开(公告)号：EP1043868A3

公开(公告)日：2002-08-28

申请号：EP00302539

申请日：2000-03-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： FORD JOSEPH EARL ,  KRISHNAMOORTHY ASHOK V

IPC: G06F3/00 ,  H04B10/20 ,  H04L29/06 ,  H04Q11/00 ,  H04L12/44

CPC classification number: H04Q11/0003 ,  H04Q11/0067 ,  H04Q11/0071