仪器对比
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Wavelengths (+/- 5 nm) | 375 nm、405 nm,、445 nm | ||
Laser version | SLM version | Low noise version | Multi-mode version |
375 nm output power (mW) | 15, 10 , 5 | 16, 10, 5 | 30 |
405 nm output power (mW) | 40, 30, 20, 10 | 100, 50, 25, 10 | 1000, 300 |
445 nm output power (mW) | 30, 20, 10 | 40, 30, 10 | 1000, 400 |
Beam diameter (1/e2) | 1.2 mm | 1.2 mm | 1.2:2.5 mm |
Beam divergence, full angle | 0.6 mrad | 0.6 mrad | 0.7:1.2 mrad |
Transverse mode | Circular, M2～1.2 | Circular, M2<1.2 | Multi-mode, M2 <3 |
Output noise, rms | < 1% (10 Hz - 50 MHz) | < 0.5% (10 Hz - 50 MHz) | < 1% (10 Hz - 50 MHz) |
Longitudinal mode | Single | Multiple | Multiple |
Line width | < 10-5nm | 0.8 nm | 1 nm, nominal |
Coherence length | > 50 m | -- | -- |
Power stability, rms | 1% over 8 hours; Ultra-stable options: 0.5% or 0.25% over 24 hours | ||
Beam pointing stability | < 0.02 mrad at constant temperature | ||
Polarization | Linear; Ratio 100:1, Vertical | ||
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