X‐band magneto‐optic Bragg cells using bismuth‐doped yttrium iron garnet waveguides
X‐band magneto‐optic Bragg cells using bismuth‐doped yttrium iron garnet waveguides
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DOI：
10.1063/1.102070
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发表时间：
1989-11
影响因子：
4
通讯作者：
D. Young;C. S. Tsai
中科院分区：
文献类型：
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作者：
D. Young;C. S. Tsai
首次报道了在掺铋YIG-GGG(铋掺杂YIG-GGG)光波导中利用静磁正向体波(MSFVW)制作X波段导波磁光Bragg盒。在1.303μm光波长下获得的性能参数包括：中心频率调谐范围为3.712 GHz，在静磁功率为56 mW时的衍射效率为12%，线性动态范围为40分贝，−为3分贝的磁光带宽为150兆赫。这些结果比以前使用纯YIG-GGG波导的Bragg池获得的结果有了显著的改善。通过在3660Oe的固定直流磁场下调节∼10.0 GHz的射频频率和在10.0GHz的固定射频频率下改变∼3660Oe的直流磁场，分别测量了6°和5.3°的最大扫描角。在12 GHz下进行了射频频谱分析实验，测量到了30 MHz的频率分辨率。最后，法拉..。
Guided‐wave magneto‐optic Bragg cells at X‐band microwave frequencies using magnetostatic forward volume waves (MSFVWs) in bismuth‐doped yttrium iron garnet‐gadolinium gallium garnet (Bi‐doped YIG‐GGG) waveguides are reported for the first time. Performance figures that have been obtained at an optical wavelength of 1.303 μm include a center frequency tuning range of 3.7–12.0 GHz, a diffraction efficiency of 12% at the magnetostatic wave power of 56 mW, a linear dynamic range >40 dB, and a −3 dB magneto‐optic bandwidth of 150 MHz. These results represent a significant improvement over those obtained previously with the Bragg cells using pure YIG‐GGG waveguides. Maximum scan angle of 6° and 5.3° were also measured, respectively, by tuning the rf frequency ∼10.0 GHz at a fixed dc magnetic field of 3660 Oe and by varying the dc magnetic field ∼3660 Oe at a fixed rf frequency of 10.0 GHz. A frequency resolution of 30 MHz was measured with rf spectral analysis experiments carried out at 12 GHz. Finally, a Fara...