CWDM full name coarse wavelength division multiplexer,total 18wavelengths 1270-1610nm(1271-1611nm),made by Thin Film Filter(TFF) technology,so also call TFF CWDM.CWDM is widely used for WDM network system,especially for 5G FrontHaul.
1)Low insertion loss
2)Broadband transmission
3)High isolation
4)High stability and reliability
1)Metro network
2)WDM system
3)Fiber optical amplifier
4)5G FrontHaul
1.Parameter
| Operating Wavelength (nm) | 1260-1620 |
| Channel Wavelength (nm) | 1270-1610, or 1271-1611 |
| Channel Spacing(nm) | 20 |
| Channel Passband (nm) | +/-7.5nm |
| Insertion Loss(dB) | 4Ch≤1.5dB,8Ch≤2.5dB,16Ch≤3.0dB,18Ch≤3.7dB |
| Channel Ripple(dB) | ≤0.5 |
| Adjacent Isolation(dB) | >30 |
| Non-adjacent Isolation(dB) | >45 |
| Insertion Loss Temperature Sensitivity(dB/℃) | ≤0.005 |
| Wavelength Temperature Shifting(nm/℃) | ≤0.002 |
| PDL(dB) | ≤0.1 |
| PMD(PS) | ≤0.1 |
| Directivity(dB) | >50 |
| Return Loss(dB) | >45 |
| Maximum Power Handling(mW) | 500 |
| Fiber Type | G657A1 |
| Operating Temperature(℃) | -5 to +70 |
| Storage Temperature(℃) | -40 to +85 |
| Package | ABS Box,LGX Box,1U Rack Mout |
Notes:Above insertion loss is for Double Fiber w/o Mon(16Ch&18Ch with skip filter),Single Fiber 2Ch≤1.5dB,4Ch≤2.5dB,8Ch≤3.0dB,9Ch≤3.7dB w/o Mon(8Ch&9Ch with skip filter),with 1% Mon add 0.3dB.
2.ABS Box Package Drawing
3.1U Rack Mount Package Drawing
4.2LGX in 1U Rack Mount Package Drawing
