MICRO-ELECTRO-MECHANICAL OPTICAL DEVICE

    公开(公告)号:CA2322122A1

    公开(公告)日:2001-04-08

    申请号:CA2322122

    申请日:2000-10-03

    Abstract: A micro-electro-mechanical (MEM] optical device having a reduced footprint f or increasing yield on a substrate. The MEM device includes an optical element having an outer edge and supported by a support structure disposed on a substrate. The support structure is mechanically connected to the substrate through first and secon d pairs of beams which move the structure to an active position for elevating the optic device above the substrate. When in an elevated position, the optical device can be selectively tilted for deflecting optic signals. The beams are connected at one end to the support structure, at the other end to the substrate and are disposed so that the first and second bea m ends are located proximate the optical device outer edge. In a preferred embodiment, a stiction force reducing element is included on the outer edge of the optical device f or reducing the contact area between the optic device edge and the substrate.

    RATE-ADAPTIVE FORWARD ERROR CORRECTION FOR OPTICAL TRANSPORT SYSTEMS
    42.
    发明申请
    RATE-ADAPTIVE FORWARD ERROR CORRECTION FOR OPTICAL TRANSPORT SYSTEMS 审中-公开
    光传输系统的自适应前向纠错校正

    公开(公告)号:WO2009020529A3

    公开(公告)日:2009-04-02

    申请号:PCT/US2008009114

    申请日:2008-07-28

    CPC classification number: H04L1/0009 H04L1/0015

    Abstract: An optical transport system (OTS) having a plurality of optical transponders (OTs) connected via one or more optical links and adapted to communicate with one another using respective rate-adaptive forward-error-correction (FEC) codes. In one embodiment, the OTS has a rate control unit (RCU) adapted to configure the OTs to dynamically adjust the rates of the FEC codes (310) based on an estimated performance margin (306) for each link between two respective communicating OTs to optimize the overall capacity of the OTS while maintaining an adequate, but not excessive, overall system margin.

    Abstract translation: 具有经由一个或多个光链路连接并且适于使用相应的速率自适应前向纠错(FEC)码相互通信的多个光转发器(OT)的光传输系统(OTS)。 在一个实施例中,OTS具有速率控制单元(RCU),该速率控制单元(RCU)适于基于针对两个相应通信OT之间的每个链路的估计性能裕度(306)来配置OT来动态地调整FEC码(310)的速率,以优化 OTS的总体能力,同时保持足够但不是过度的整体系统利润。

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