High-speed plasmonic phase modulators
High-speed plasmonic phase modulators
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DOI：
10.1038/nphoton.2014.9
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发表时间：
2014-03-01
期刊：
影响因子：
35
通讯作者：
Leuthold, J.
中科院分区：
文献类型：
--
作者：
Melikyan, A.;Alloatti, L.;Leuthold, J.
为了跟上光通信的需求，电光调制器应该具有大带宽，在所有电信窗口中工作，提供小尺寸，并允许CMOS兼容制造以保持低成本（1）。在这里，我们展示了一种新的超紧凑的等离子体相位调制器的基础上的Pockels效应的非线性聚合物。该器件的长度仅为29 μ m，工作速率为40 Gbit s（-1）。它的调制频率响应在高达65 GHz及以上的频率范围内是平坦的。经测试，该调制器可在以1，550 nm为中心的120 nm宽的波长范围内工作，预计可在此范围之外工作。它的操作已被验证的温度高达85摄氏度，它很容易制造。据我们所知，这是迄今为止最紧凑的高速相位调制器。
To keep pace with the demands in optical communications, electro-optic modulators should feature large bandwidths, operate across all telecommunication windows, offer a small footprint, and allow for CMOS-compatible fabrication to keep costs low(1). Here, we demonstrate a new ultra-compact plasmonic phase modulator based on the Pockels effect in a nonlinear polymer. The device has a length of only 29 mu m and operates at 40 Gbit s(-1). Its modulation frequency response is flat up to 65 GHz and beyond. The modulator has been tested to work across a 120-nm-wide wavelength range centred at 1,550 nm, and is expected to work beyond this range. Its operation has been verified for temperatures up to 85 degrees C and it is easy to fabricate. To the best of our knowledge, this is the most compact high-speed phase modulator demonstrated to date.