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    COOLERLESS PHOTONIC INTEGRATED CIRCUITS (PICs) FOR WDM TRANSMISSION NETWORKS AND PICs OPERABLE WITH A FLOATING SIGNAL CHANNEL GRID CHANGING WITH TEMPERATURE BUT WITH FIXED CHANNEL SPACING IN THE FLOATING GRID
    51.
    发明申请
    COOLERLESS PHOTONIC INTEGRATED CIRCUITS (PICs) FOR WDM TRANSMISSION NETWORKS AND PICs OPERABLE WITH A FLOATING SIGNAL CHANNEL GRID CHANGING WITH TEMPERATURE BUT WITH FIXED CHANNEL SPACING IN THE FLOATING GRID 审中-公开
    用于WDM传输网络的无线光电集成电路（PIC）可用于浮动信号通道网格变化与温度变化，但在浮动网格中具有固定通道间隔

    公开(公告)号：US20100166424A1

    公开(公告)日：2010-07-01

    申请号：US12612646

    申请日：2009-11-04

    申请人： Radhakrishnan L. Nagarajan ,  Fred A. Kish, JR. ,  David F. Welch ,  Drew D. Perkins ,  Masaki Kato

    发明人： Radhakrishnan L. Nagarajan ,  Fred A. Kish, JR. ,  David F. Welch ,  Drew D. Perkins ,  Masaki Kato

    IPC分类号： H01S3/04 ,  H04J14/02 ,  H04B10/04 ,  H01S5/024

    CPC分类号： G02B6/12033 ,  B82Y20/00 ,  G02B6/12019 ,  G02B6/2813 ,  G02B6/293 ,  G02B6/29317 ,  G02B6/29338 ,  G02B6/29352 ,  H01S5/005 ,  H01S5/0085 ,  H01S5/02248 ,  H01S5/024 ,  H01S5/0261 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0683 ,  H01S5/1032 ,  H01S5/12 ,  H01S5/1221 ,  H01S5/2231 ,  H01S5/34306 ,  H01S5/4031 ,  H01S5/4087 ,  H04B10/506

    摘要： A coolerless photonic integrated circuit (PIC), such as a semiconductor electro-absorption modulator/laser (EML) or a coolerless optical transmitter photonic integrated circuit (TxPIC), may be operated over a wide temperature range at temperatures higher then room temperature without the need for ambient cooling or hermetic packaging. Since there is large scale integration of N optical transmission signal WDM channels on a TxPIC chip, a new DWDM system approach with novel sensing schemes and adaptive algorithms provides intelligent control of the PIC to optimize its performance and to allow optical transmitter and receiver modules in DWDM systems to operate uncooled. Moreover, the wavelength grid of the on-chip channel laser sources may thermally float within a WDM wavelength band where the individual emission wavelengths of the laser sources are not fixed to wavelength peaks along a standardized wavelength grid but rather may move about with changes in ambient temperature. However, control is maintained such that the channel spectral spacing between channels across multiple signal channels, whether such spacing is periodic or aperiodic, between adjacent laser sources in the thermally floating wavelength grid are maintained in a fixed relationship. Means are then provided at an optical receiver to discover and lock onto floating wavelength grid of transmitted WDM signals and thereafter demultiplex the transmitted WDM signals for OE conversion.

    摘要翻译： 诸如半导体电吸收调制器/激光器（EML）或无冷器光发射机光子集成电路（TxPIC）的无冷却光子集成电路（PIC）可以在高于室温的温度范围内工作，而不需要 需要环境冷却或密封包装。 由于在TxPIC芯片上存在N个光传输信号WDM信道的大规模集成，新的具有新型感测方案和自适应算法的DWDM系统方法提供了PIC的智能控制，以优化其性能并允许光发射机和接收机模块在DWDM 系统运行未冷却。 此外，片上通道激光源的波长网格可以在WDM波长带内热漂浮，其中激光源的各个发射波长不沿着标准波长网格固定到波长峰值，而是可以随着环境的变化而移动 温度。 然而，保持控制，使得在热浮动波长网格中的相邻激光源之间跨多个信号通道的信道之间的信道频谱间隔（无论这样的间隔是周期性的还是非周期性的）保持固定的关系。 然后在光接收器处提供装置以发现并锁定发送的WDM信号的浮动波长网格，然后对发送的WDM信号进行解复用以进行OE转换。