电光调制器（EOM）用于修改自由空间激光器的相位，频率，极化或振幅。与声光调制器相比，激光束的空间模式保持不变。因此，当在激光光谱中需要多个频率分量时，EOM是理想的选择。例如，在激光冷却再生脉冲频率生成，离子捕获和量子光学中，用于谱增宽以抑制高功率光纤中的受激布里渊散射（SBS），以及用于外差技术，如FM光谱法，调制转移光谱法或Pound-Drever Hall PDH）激光频率稳定。
主要特点
调制频率：DC -14.7 GHz（直流耦合，谐振和行波模型）
波长范围：UV-MIR（190nm -10.6μm，可选择专用晶体）
大孔径，便于对准和高激光功率（标准：3x3mm，5x5mm）
Repumper Frequencies for Spectroscopy and Laser Cooling of Ions
Properties | EO-Li6M3 | EO-Li7M3 | EO-Na23R5 |
Resonance frequency: f01) | 199-278MHz | 678-966MHz | 1.53-1.76GHz |
Preset frequency: fset1) | 228 MHz | 813 MHz | 1713MHz |
Bandwidth: Δν | 1.2 MHz | 3.2 MHz | 7.6MHz |
Quality factor: Q | 190 | 254 | 225 |
Required RF power for 1rad (dBm) | 21.5@671nm2) | 26.4@671nm2) | 32.3@589nm2) |
max. RF power: RFmax3) (W) | 1 | 2 | 5 |
EO crystal | MLN | MLN | RTP |
Aperture (mm2) | 3x3 | 3x3 | 5x5 |
Wavefront distortion (633nm) (nm) | λ/4(633nm) | λ/4(633nm) | λ/6(633nm) |
recommended max. optical intensity (W/mm2) | <10(671nm) | <10(671nm) | <30(589nm) |
AR coating (Ravg<0.5%) (nm) | 380-700 | 500-900 | 589 |
Properties | EO-K39M3 | EO-K40M3 | EO-K41L3 | EO-Rb85M3 |
Resonance frequency: f01) | 367-491MHz | 1.12-1.36GHz | 192-277MHz | 2.63-2.97GHz |
Preset frequency: fset1) | 1242MHz | 254MHz | 2903MHz | |
Bandwidth: Δν | 2.55MHz | 3.6MHz | 1.3MHz | 15MHz |
Quality factor: Q | 184 | 345 | 194 | 200 |
Required RF power for 1rad (dBm) | 25.9@767nm2) | 28.4@767nm2) | 21.8@767nm2) | 40.4@780nm2) |
max. RF power: RFmax3) (W) | 1 | 2 | 1 | 5 |
EO crystal | MLN | MLN | LN | MLN |
Aperture (mm2) | 3x3 | 3x3 | 3x3 | 3x3 |
Wavefront distortion (633nm) (nm) | λ/4(633nm) | λ/4(633nm) | λ/4(633nm) | λ/4(633nm) |
recommended max. optical intensity (W/mm2) | <10(767nm) | <10(767nm) | <1 (767nm) | <10(780nm) |
AR coating (Ravg<0.5%) (nm) | 500-1100 | 500-1100 | 630-1070 | 500-1100 |