CA2253752A1 - Free-space optical signal switch arrangement - Google Patents

Free-space optical signal switch arrangement

Info

Publication number
CA2253752A1
CA2253752A1 CA002253752A CA2253752A CA2253752A1 CA 2253752 A1 CA2253752 A1 CA 2253752A1 CA 002253752 A CA002253752 A CA 002253752A CA 2253752 A CA2253752 A CA 2253752A CA 2253752 A1 CA2253752 A1 CA 2253752A1
Authority
CA
Canada
Prior art keywords
optical signal
free
signal switch
optical
switch arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002253752A
Other languages
French (fr)
Other versions
CA2253752C (en
Inventor
Mohammad Taghi Fatehi
Joseph Earl Ford
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CA2253752A1 publication Critical patent/CA2253752A1/en
Application granted granted Critical
Publication of CA2253752C publication Critical patent/CA2253752C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0024—Construction using space switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0026—Construction using free space propagation (e.g. lenses, mirrors)

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 transmitters handle single mode optical signals and the receivers handle multimode optical signals. The OXC may optionally include a fixed optical unit implemented using 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.
CA002253752A 1997-12-05 1998-11-10 Free-space optical signal switch arrangement Expired - Lifetime CA2253752C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/985,618 1997-12-05
US08/985,618 US6002818A (en) 1997-12-05 1997-12-05 Free-space optical signal switch arrangement

Publications (2)

Publication Number Publication Date
CA2253752A1 true CA2253752A1 (en) 1999-06-05
CA2253752C CA2253752C (en) 2002-10-08

Family

ID=25531644

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002253752A Expired - Lifetime CA2253752C (en) 1997-12-05 1998-11-10 Free-space optical signal switch arrangement

Country Status (4)

Country Link
US (1) US6002818A (en)
EP (1) EP0921702A3 (en)
JP (1) JPH11231232A (en)
CA (1) CA2253752C (en)

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Also Published As

Publication number Publication date
EP0921702A2 (en) 1999-06-09
EP0921702A3 (en) 2001-04-04
CA2253752C (en) 2002-10-08
JPH11231232A (en) 1999-08-27
US6002818A (en) 1999-12-14

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MKEX Expiry

Effective date: 20181113