Widely tunable 1.5 [micro sign]m micromechanical optical filter using AlOx/AlGaAs DBR
Widely tunable 1.5 [micro sign]m micromechanical optical filter using AlOx/AlGaAs DBR
复制标题
使用 AlOx/AlGaAs DBR 的广泛可调 1.5 [microsign]m 微机械光学滤波器
DOI:
10.1049/el:19971167
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发表时间:
1997
影响因子:
1.1
通讯作者:
C. Chang
中科院分区:
文献类型:
--
作者:
M. Wu;G. S. Li;W. Yuen;C. Chang
The authors demonstrate, for the first time, a wavelength tunable optical filter at 1.55 µm using micromechanical tuning of a Fabry-Perot resonator with an AlOx/AlGaAs distributed Bragg reflectors (DBR). The use of thermally oxidised AlAs layers, resulting an ultrawide bandwidth, dramatically increased the tuning range and efficiency of the resonator. Very efficient continuous tuning of > 50 nm with only a 0.95 V tuning voltage was achieved. The tuning range, limited by our test laser, is expected to be expandable to hundreds of nm.