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    • 3. 发明授权
    • Tilted combiners/decombiners and photonic integrated circuit (PIC) employing the same
    • 倾斜组合器/分解器和采用其的光子集成电路(PIC)
    • US07444048B2
    • 2008-10-28
    • US11377155
    • 2006-03-16
    • Frank H. PetersCharles H. JoynerMark J. Missey
    • Frank H. PetersCharles H. JoynerMark J. Missey
    • G02B6/34G02B6/28G02B6/43
    • G02B6/12019G02B6/12004G02B6/12007G02B6/12011G02B6/12016G02B6/29308G02B6/2931
    • A monolithic optical transmitter photonic integrated circuit (TxPIC) comprises a plurality of integrated modulated sources which, when all operated at constant current, display a power output that varies as a function of array position similar to a quadratic-shaped curve and, further, forming an array of signal channels each having a different wavelength output. An optical combiner/decombiner is integrated in the circuit and has at least one free space region with a plurality of ordered bands along its edge where the zero order band is substantially at a longitudinal centerline of the free space region and where, on either side of this band, is a first order band followed by additional higher order bands. The ends of the output waveguides from the modulated sources are coupled approximate to the free space region edge along a region of the zero order band between one of the adjacent first order bands and a longitudinal centerline of the zero order band so that the inputs of the signal channels to the combiner of are titled or offset with respect to the longitudinal centerline of the combiner free space region so the combined outputs from the optical combiner will be aligned along the slope of the quadric-shaped curve of the combiner output passband envelope. The tilted combiner/decombiner may also be deployed in a receiver photonic integrated circuit (RxPIC) or other circuit employing such a device.
    • 单片光发射机光子集成电路(TxPIC)包括多个集成的调制源,当所有这些都被以恒定电流操作时,显示出作为类似于二次曲线的阵列位置的函数变化的功率输出,并且还形成 每个具有不同波长输出的信号通道阵列。 光学组合器/分解器集成在电路中,并且具有至少一个自由空间区域,沿其边缘具有多个有序频带,其中零阶频带基本上在自由空间区域的纵向中心线处,并且其中在 这个频带,是一个第一个阶带,其次是另外的高阶频带。 来自调制源的输出波导的端部沿着相邻一级频带之一与零级频带的纵向中心线之间的零级频带的区域近似耦合到自由空间区域边缘,使得 组合器的信号通道相对于组合器自由空间区域的纵向中心线标题或偏移,因此来自光组合器的组合输出将沿着组合器输出通带包络的二次曲线的斜率对准。 倾斜的组合器/分解器也可以部署在接收器光子集成电路(RxPIC)或采用这种装置的其它电路中。