The Experts below are selected from a list of 321 Experts worldwide ranked by ideXlab platform

E. Voges - One of the best experts on this subject based on the ideXlab platform.

  • An electrostatically actuated 1 x 2 moving-Fiber Switch
    IEEE Photonics Technology Letters, 2003
    Co-Authors: M. Hoffmann, D. Nusse, E. Voges
    Abstract:

    A 1/spl times/2 moving-Fiber Switch for optical protection Switching is presented. A detailed measurement of the optical performance is given. A coupling loss of 0.5 dB is achieved in the lensless optical path based on butt-coupled standard single-mode Fibers. The actuation voltage is approximately 30 V. Both the electrostatic parallel-plate actuators and the Fiber alignment structures are realized by anisotropic machining of crystalline silicon. This type of Switch is designed for compact rows of Switches.

  • All-silicon bistable micromechanical Fiber Switch based on advanced bulk micromachining
    IEEE Journal of Selected Topics in Quantum Electronics, 1999
    Co-Authors: M. Hoffmann, P. Kopka, E. Voges
    Abstract:

    Bulk silicon micromachining is used to fabricate bistable optical Fiber Switches. The Switches are based on a silicon device consisting of an actuator for Fiber movement and a V-groove Fiber clamp for bistable operation. The complete mechanical structures including thermal actuators are etched into standard silicon wafers using anisotropic wet etching in KOH. While Switching is caused by asymmetric thermal expansion of a U-shaped silicon cantilever, the Fiber clamp is driven by the bimaterial effect. The efficient process technology allows a low cost batch fabrication of these devices. The Switches exhibit an insertion loss

  • all silicon bistable micromechanical Fiber Switch based on advanced bulk micromachining
    IEEE Journal of Selected Topics in Quantum Electronics, 1999
    Co-Authors: Martin Hoffmann, P. Kopka, E. Voges
    Abstract:

    Bulk silicon micromachining is used to fabricate bistable optical Fiber Switches. The Switches are based on a silicon device consisting of an actuator for Fiber movement and a V-groove Fiber clamp for bistable operation. The complete mechanical structures including thermal actuators are etched into standard silicon wafers using anisotropic wet etching in KOH. While Switching is caused by asymmetric thermal expansion of a U-shaped silicon cantilever, the Fiber clamp is driven by the bimaterial effect. The efficient process technology allows a low cost batch fabrication of these devices. The Switches exhibit an insertion loss <1 dB and a crosstalk of <-60 dB using standard single-mode Fibers. A Switching power below 1 W is required during Switching.

  • Micromechanical Fiber Switch arrays on silicon
    24th European Conference on Optical Communication. ECOC '98 (IEEE Cat. No.98TH8398), 1998
    Co-Authors: P. Kopka, M. Hoffmann, E. Voges
    Abstract:

    Bistable micromechanical(1/spl times/2) and (1/spl times/4) fibre Switches with insertion loss

M. Hoffmann - One of the best experts on this subject based on the ideXlab platform.

  • An electrostatically actuated 1 x 2 moving-Fiber Switch
    IEEE Photonics Technology Letters, 2003
    Co-Authors: M. Hoffmann, D. Nusse, E. Voges
    Abstract:

    A 1/spl times/2 moving-Fiber Switch for optical protection Switching is presented. A detailed measurement of the optical performance is given. A coupling loss of 0.5 dB is achieved in the lensless optical path based on butt-coupled standard single-mode Fibers. The actuation voltage is approximately 30 V. Both the electrostatic parallel-plate actuators and the Fiber alignment structures are realized by anisotropic machining of crystalline silicon. This type of Switch is designed for compact rows of Switches.

  • All-silicon bistable micromechanical Fiber Switch based on advanced bulk micromachining
    IEEE Journal of Selected Topics in Quantum Electronics, 1999
    Co-Authors: M. Hoffmann, P. Kopka, E. Voges
    Abstract:

    Bulk silicon micromachining is used to fabricate bistable optical Fiber Switches. The Switches are based on a silicon device consisting of an actuator for Fiber movement and a V-groove Fiber clamp for bistable operation. The complete mechanical structures including thermal actuators are etched into standard silicon wafers using anisotropic wet etching in KOH. While Switching is caused by asymmetric thermal expansion of a U-shaped silicon cantilever, the Fiber clamp is driven by the bimaterial effect. The efficient process technology allows a low cost batch fabrication of these devices. The Switches exhibit an insertion loss

  • Micromechanical Fiber Switch arrays on silicon
    24th European Conference on Optical Communication. ECOC '98 (IEEE Cat. No.98TH8398), 1998
    Co-Authors: P. Kopka, M. Hoffmann, E. Voges
    Abstract:

    Bistable micromechanical(1/spl times/2) and (1/spl times/4) fibre Switches with insertion loss

P. Kopka - One of the best experts on this subject based on the ideXlab platform.

  • Latching-type 2x2 and 1x4 Fiber-optic Switches
    Proceedings of SPIE, 2000
    Co-Authors: P. Kopka, Martin Hoffmann, Edgar Voges
    Abstract:

    The presented latching-type 2 by 2 and 1 by 4 Fiber-optic Switches are based on full wafer micromachining of silicon wafers using anisotropic wet etching in KOH. Bulk micromachining allows the low-cost batch fabrication of structures with very high precision suitable for Fiber alignment. The optical Fiber Switches consist of two thermally driven silicon actuators, a coupled U-shaped cantilever via thin flexible silicon beams and a stiff platform prevents angular displacement of the Fibers. Switches have been fabricated with high yield, high mechanical stability, and good optical properties. Using standard single- mode Fibers, the Switches exhibit a crosstalk of < - 60 dB. Insertion losses below 1 dB and about 1 dB are achievable for 1 by 4 and 2 by 2 Switches, respectively. A power below 0.6 W and 1.0 W for the 2 by 2 and 1 by 4 micromechanical Fiber Switch is needed during the Switching time. Bistable 1 by 2 optical Fiber Switches have been tested for more than 1 X 106 Switching cycles without any failure and after more than one year at room conditions they do not show any degeneration of optical properties and Switching behavior.© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

  • all silicon bistable micromechanical Fiber Switch based on advanced bulk micromachining
    IEEE Journal of Selected Topics in Quantum Electronics, 1999
    Co-Authors: Martin Hoffmann, P. Kopka, E. Voges
    Abstract:

    Bulk silicon micromachining is used to fabricate bistable optical Fiber Switches. The Switches are based on a silicon device consisting of an actuator for Fiber movement and a V-groove Fiber clamp for bistable operation. The complete mechanical structures including thermal actuators are etched into standard silicon wafers using anisotropic wet etching in KOH. While Switching is caused by asymmetric thermal expansion of a U-shaped silicon cantilever, the Fiber clamp is driven by the bimaterial effect. The efficient process technology allows a low cost batch fabrication of these devices. The Switches exhibit an insertion loss <1 dB and a crosstalk of <-60 dB using standard single-mode Fibers. A Switching power below 1 W is required during Switching.

  • All-silicon bistable micromechanical Fiber Switch based on advanced bulk micromachining
    IEEE Journal of Selected Topics in Quantum Electronics, 1999
    Co-Authors: M. Hoffmann, P. Kopka, E. Voges
    Abstract:

    Bulk silicon micromachining is used to fabricate bistable optical Fiber Switches. The Switches are based on a silicon device consisting of an actuator for Fiber movement and a V-groove Fiber clamp for bistable operation. The complete mechanical structures including thermal actuators are etched into standard silicon wafers using anisotropic wet etching in KOH. While Switching is caused by asymmetric thermal expansion of a U-shaped silicon cantilever, the Fiber clamp is driven by the bimaterial effect. The efficient process technology allows a low cost batch fabrication of these devices. The Switches exhibit an insertion loss

  • Micromechanical Fiber Switch arrays on silicon
    24th European Conference on Optical Communication. ECOC '98 (IEEE Cat. No.98TH8398), 1998
    Co-Authors: P. Kopka, M. Hoffmann, E. Voges
    Abstract:

    Bistable micromechanical(1/spl times/2) and (1/spl times/4) fibre Switches with insertion loss

V. Pruneri - One of the best experts on this subject based on the ideXlab platform.

  • Systems measurements of 2/spl times/2 poled Fiber Switch
    IEEE Photonics Technology Letters, 2005
    Co-Authors: J. Li, N. Myren, W. Margulis, B. Ortega, G. Puerto, D. Pastor, J. Capmany, M. Belmonte, V. Pruneri
    Abstract:

    The performance of a 2/spl times/2 all-Fiber electrooptical Switch is characterized in a system at up to 40 Gb/s. Error-free transmission is demonstrated. The device was also employed as a protection Switch at 10 Gb/s in an installed Fiber link.

Michael J. F. Digonnet - One of the best experts on this subject based on the ideXlab platform.

  • Nanosecond thermal Fiber Switch using a Sagnac interferometer
    IEEE Photonics Technology Letters, 1999
    Co-Authors: M K Davis, Michael J. F. Digonnet
    Abstract:

    We demonstrate a new, fast, and stable all-optical Fiber Switch\nbased on the TOAD principle. It utilizes a transient thermal phase shift\ninduced by a short pump pulse to cause Switching in a cobalt (Co)-doped\nFiber placed in a Sagnac Fiber loop. Switched pulses as short as 7-ns\nwere observed in a 2-m loop containing a 2.55-cm length of Co-doped\nFiber pumped with 12-ns pulses. Compared to other all-optical Switches\nusing doped Fibers, this Switch offers a dramatic increase in speed and\nstability, and a sizable reduction in Fiber length requirement

  • Fast stable thermal Fiber Switch in a Sagnac interferometer
    Doped Fiber Devices II, 1998
    Co-Authors: M K Davis, Michael J. F. Digonnet
    Abstract:

    We demonstrate a fast, stable, all-optical Switch using a thermal effect in cobalt-doped Fiber. 46 ns Switching is accomplished in a 10-m Sagnac loop containing a 2.55-cm length of doped Fiber. Compared to other demonstrated all- optical Switches using doped Fibers, this Switch offers a significant increase in speed and stability, as well as a significant reduction in Fiber length.© (1998) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.