Resonant-wavelength tuning of a pitch-variable 1-D photonic crystal filter at telecom frequencies
Resonant-wavelength tuning of a pitch-variable 1-D photonic crystal filter at telecom frequencies
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DOI：
10.1109/lpt.2008.924655
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发表时间：
2008-07-01
影响因子：
2.6
通讯作者：
Hane, Kazuhiro
中科院分区：
文献类型：
--
作者：
Kanamori, Yoshiaki;Matsuyama, Naoki;Hane, Kazuhiro
我们提出了在电信频率的连续谐振波长调谐的间距可变引导谐振滤波器。由于光学响应不仅受到光栅周期的影响，而且还受到填充因子的影响，因此考虑到这些参数，通过使用梳状驱动致动器，滤波器被设计成平滑地调谐到选择性波长。制作了初始周期为860 nm的高精度光栅。当光栅扩展时，谐振波长如计算所预期的那样连续地向较长波长移动。
We propose pitch-variable guided resonance filters for continuous resonant-wavelength tuning at telecom frequencies. Since the optical response is affected by not only the grating period but also the filling factor, in consideration of these parameters, the filter is designed to be tuned smoothly to a selective wavelength by using comb-drive actuators. The grating with the initial period of 860 nm is fabricated with high accuracy. When the grating is expanded, the resonant wavelength shifts to longer wavelength continuously as expected by the calculation.