Wuhan ETERN Optoelectronics Technology Co.,Ltd.
Wuhan ETERN Optoelectronics Technology Co.,Ltd. Robust Innovation, Fusion and Win-win
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ETERN 100GHz/200GHz CWDM 3-port TFF devices are available on ITU channel spacing of 100GHz/200GHz CWDM spacing. These thin film filter products utilize hermetic and epoxy-free optical path technology to provide excellent performance and reliability.
Features
1. Flat and Wide Passband
2. High Stability and Reliability
3. Low Insertion Loss, High Isolation
Coarse wavelength division multiplexing (CWDM) is a wavelength division multiplexing (WDM) technology that combines multiple signals at various wavelengths for simultaneous transmission over fiber cables. This passive technology allows for any protocol to be transported over the link.
CWDM is a low-cost method to maximize existing fiber by decreasing the channel spacing between wavelengths. CWDM has a lower cost per channel than dense WDM (DWDM) and no configuration is necessary. CWDM optical devices can increase bandwidth on existing fiber infrastructure and alleviate fiber exhaustion.
Our CWDM solutions support these different channel variations as well as add/drop modules. Our CWDM module is also available in a hardened temperature grade for our 16-channel mux/demux to provide the right solution for your network.
Performance Specification
| Parameter | Units | Value | ||
| Channels | GHz | 100/200/300 | ||
| Central Wavelength | nm | ITU-T Grid | ||
| Pass band Flatness | dB | ≤0.5 | ||
| Typ. | 0.7 | |||
| Insertion Loss | dB | |||
| Max. | 0.8 | |||
| Polarization Dependent Loss (PDL) | dB | ≤0.15 | ||
| Adjacent Channel Isolation | dB | ≥25/≥25/≥30 | ||
| Non-Adjacent Channel Isolation | dB | ≥45 | ||
| Return Loss | dB | ≥45 | ||
| Polarization Mode Dispersion(PMD) | ps | ≤0.15 | ||
| Directivity | dB | ≥50 | ||
| Operating Temperature | ℃ | -5 to +70 | ||
| Storage Temperature | ℃ | -40 to +85 | ||
Notes: 1. Measured with connectors； IL will be 0.3dB worse and RL will be 5dB lower with connectors.
Mechanical Dimensions(Unit:mm)
Ordering Information
| WDM - | □ | □□- | □ | □□ | □ |
| Spacing | Channel | Fiber Type | Fiber Length | Connector | |
| WDM | 1=100GHz | C21=C21 | 1=250um SM | 00=Adapter | 1=None |
| 2=200GHz | C22=C22 | 2=900um SM | 05=0.5m | 2=FC/UPC | |
| C=CWDM | XX=1XX1 | 3=2.0mm SM | 10=1.0m | 3=FC/APC | |
| ...... | 4=3.0mm SM | 15=1.5m | 4=LC/UPC | ||
| 20=2.0m | 5=LC/APC | ||||
| ...... | 6=SC/UPC | ||||
| 7=SC/APC | |||||
| X=Special | |||||