DFM
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| Brand | DFM |
|---|---|
| Origin | Denmark |
| Model | Stabiλaser 1542ε, Stabiλaser 771 |
| Wavelength (vacuum) | 1542.3837 nm |
| Linewidth (short-term) | 300 Hz |
| Allan Deviation (ADEV ≥ 1 s) | ≤3×10⁻¹³ |
| Long-term accuracy | ≤2×10⁻¹² (annual drift) |
| Output power (locked) | 10 mW @ 1542 nm |
| Power supply | 100–240 VAC, 50/60 Hz |
| Dimensions | 13.3 cm × 48.3 cm × 49.6 cm |
| Compliance | CIPM-recommended frequency standard (uncertainty: 5 kHz) |