Department of Electrical & Computer Engineering, National University of Singapore, Singapore.
Opt Lett. 2013 Mar 15;38(6):902-4. doi: 10.1364/OL.38.000902.
Grating structures are designed at the inner wall of the Fabry-Perot (FP) resonator to enhance the performance of an FP optical filter. The rectangular grating or triangular grating (TG) structures allows the light to be propagated effectively through the FP resonator. Attributed to the grating structures, the spectrum intensity of a FP resonator with grating structures is calculated to be 4.5-fold higher than that of a FP resonator with slot. In addition, the Q-factor of the resonant peak for a FP resonator with hybrid TG structure and two slots is 9.5-fold and 4.7-fold higher than that of a FP resonator with one slot and TG configurations, respectively.
在法布里-珀罗（FP）谐振器的内壁设计光栅结构，以提高 FP 光学滤波器的性能。矩形光栅或三角光栅（TG）结构可使光有效地通过 FP 谐振器传播。由于光栅结构，具有光栅结构的 FP 谐振器的光谱强度计算值比具有狭缝的 FP 谐振器高 4.5 倍。此外，具有混合 TG 结构和两个狭缝的 FP 谐振器的谐振峰的 Q 因子分别比具有一个狭缝和 TG 结构的 FP 谐振器高 9.5 倍和 4.7 倍。
