CWDM six-wave combiner/demultiplexer
Customer demand:
In order to meet the rapid growth of data traffic, operators need to continuously increase the number of base stations. In order to avoid the shortcomings brought about by the traditional way of station construction, operators gradually adopt the method of centrally placing multiple BBU/DUs. Through the use of matching passive optical modules on BBU/DU and RRU/AAU, it provides service signals of different wavelengths.
Customer requirements:
Refer to the table below for the general technical indicators of the optical interface of the passive coarse wavelength division multiplexer.
parameter | Ienheid | Yndeks | ||
Oantal kanalen | 6 | 12 | 18 | |
Center wavelength | nm | 1271-1371 | 1271-1371 / 1471-1571 | 1271-1611 |
Center wavelength deviation | nm | ≤1.5 | ||
1dB passband width | nm | ≥13 | ||
Passband flatness | dB | ≤0.5 | ||
Adjacent channel isolation | dB | ≥25 | ||
Non-adjacent channel isolation | dB | ≥30 | ||
Wavelength thermal stability | nm/℃ | ≤0.002 | ||
Insertion loss thermal stability | dB/℃ | ≤0.007 | ||
Polarization dependent loss | dB | ≤0.15 | ||
Ferlies werom | dB | ≥40 | ||
Operating temperatuer | ℃ | -10 ~ + 70 | ||
Storage temperatuer | ℃ | -40 ~ + 85 |
Optical channel(nm) | 6 waves (dB) | ||
Sintraal kantoar | Remote | In pairs | |
1271 | 1.3 | 1.7 | 3.0 |
1291 | 1.5 | 1.5 | 3.0 |
1311 | 1.7 | 1.3 | 3.0 |
1331 | 1.1 | 1.1 | 2.2 |
1351 | 0.7 | 0.9 | 1.6 |
1371 | 0.9 | 0.7 | 1.6 |
Oplossing:
Achievement indicators:
parameter | Ienheid | Testgegevens | ||
Working wavelength range | nm | 1260 ~ 1620 | ||
Oantal kanalen | 6 | |||
Ofstân fan kanalen | nm | 20 | ||
Center wavelength | nm | 1271/1291/1311/1331/1351/1371 | ||
Center wavelength deviation | nm | ≤1.5 | ||
Ynsetferlies | COM | 1271nm | dB | 0.80 |
1291nm | dB | 0.74 | ||
1311nm | dB | 0.99 | ||
1331nm | dB | 0.75 | ||
1351nm | dB | 0.43 | ||
1371nm | dB | 0.81 | ||
isolaasje | Adjacent channel isolation | dB | ≥25 | |
Non-adjacent channel isolation | dB | ≥30 | ||
Polarization dependent loss | dB | ≤0.15 | ||
Channel flatness | dB | ≤0.5 | ||
Ferlies werom | dB | ≥40 | ||
Wavelength thermal stability | nm/℃ | ≤0.002 | ||
Insertion loss thermal stability | dB/℃ | ≤0.007 | ||
Operating temperatuer | ℃ | -10 ~ + 70 | ||
Storage temperatuer | ℃ | -40 ~ + 85 | ||
Package size | mm | 130 × 100 × 25 | ||
Fibertype | / | G657A1 | ||
Connector type | / | LC / UPC |