WO2003081292A3 - Multiple-axis control system for an optical switch - Google Patents

Multiple-axis control system for an optical switch Download PDF

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Publication number
WO2003081292A3
WO2003081292A3 PCT/US2003/008378 US0308378W WO03081292A3 WO 2003081292 A3 WO2003081292 A3 WO 2003081292A3 US 0308378 W US0308378 W US 0308378W WO 03081292 A3 WO03081292 A3 WO 03081292A3
Authority
WO
WIPO (PCT)
Prior art keywords
control mode
loop control
dither signals
dither
optical switch
Prior art date
Application number
PCT/US2003/008378
Other languages
French (fr)
Other versions
WO2003081292A2 (en
Inventor
Kamyar Ghandi
Iv Nesbitt Ward Hagood
Timothy Scott Glenn
Original Assignee
Continuum Photonics Inc
Kamyar Ghandi
Iv Nesbitt Ward Hagood
Timothy Scott Glenn
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 Continuum Photonics Inc, Kamyar Ghandi, Iv Nesbitt Ward Hagood, Timothy Scott Glenn filed Critical Continuum Photonics Inc
Priority to CA002483572A priority Critical patent/CA2483572A1/en
Priority to AU2003230682A priority patent/AU2003230682A1/en
Priority to EP03723772A priority patent/EP1490714A4/en
Publication of WO2003081292A2 publication Critical patent/WO2003081292A2/en
Publication of WO2003081292A3 publication Critical patent/WO2003081292A3/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor

Abstract

A free space optical switch that uses open and closed loop control mode. The open loop control mode is used to transition to a state where light is sensed at a destination port. A closed loop control mode is then used, whereby a series of controlled dither signals (75) are adjusted for system dynamics. Modifying the dither signals (75) allows moving actuators at a rate that is much closer to the natural frequency of the underlying system, and speeds up the system convergence process. Variable modulation amplitudes may be employed on the dither signals (75) to maximize convergence speed. In particular, changes in the dither signal can be made in accordance with the change in amplitude as a function of a gradient along a parabola that models the optical system response. The dither signals (75) may be compensated for a desired and selectable attenuation level of output optical power.
PCT/US2003/008378 2002-03-18 2003-03-18 Multiple-axis control system for an optical switch WO2003081292A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002483572A CA2483572A1 (en) 2002-03-18 2003-03-18 Multiple-axis control system for an optical switch
AU2003230682A AU2003230682A1 (en) 2002-03-18 2003-03-18 Multiple-axis control system for an optical switch
EP03723772A EP1490714A4 (en) 2002-03-18 2003-03-18 Multiple-axis control system for an optical switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36546702P 2002-03-18 2002-03-18
US60/365,467 2002-03-18

Publications (2)

Publication Number Publication Date
WO2003081292A2 WO2003081292A2 (en) 2003-10-02
WO2003081292A3 true WO2003081292A3 (en) 2004-04-01

Family

ID=28454661

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/008378 WO2003081292A2 (en) 2002-03-18 2003-03-18 Multiple-axis control system for an optical switch

Country Status (2)

Country Link
AU (1) AU2003230682A1 (en)
WO (1) WO2003081292A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109542032B (en) * 2018-11-23 2020-05-19 深圳市杰普特光电股份有限公司 Control circuit and control method
WO2022192312A1 (en) * 2021-03-12 2022-09-15 Siemens Corporation Method of producing and a photonic metasurface for performing computationally intensive mathematical computations

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657339A (en) * 1982-02-26 1987-04-14 U.S. Philips Corporation Fiber optic switch
WO2002001274A2 (en) * 2000-06-28 2002-01-03 Megasense Optical switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657339A (en) * 1982-02-26 1987-04-14 U.S. Philips Corporation Fiber optic switch
WO2002001274A2 (en) * 2000-06-28 2002-01-03 Megasense Optical switch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1490714A4 *

Also Published As

Publication number Publication date
AU2003230682A1 (en) 2003-10-08
WO2003081292A2 (en) 2003-10-02
AU2003230682A8 (en) 2003-10-08

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