Foc Communication CO.,LTD
FOC COMMUNICATION CO.,LTD Leading Manufacturer of Fiber PLC Splitter and Fiber Optic Patch Cord
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Coarse Wavelength Division Multiplexer CWDM for Transmitters and Fiber Lasers
Wavelength Division Multiplexer (WDM) is the device which uses multiple optical maser to transmit multi beam of different wavelengths of laser technology through a single fiber. Each signal is transmitted in its unique channel after the data (text, voice, video and so on) modulated. WDM can increase the existing fiber infrastructure for phone companies and other operators.
DWDM (dense wavelength division multiplexing) system can support more than 150 different wavelengths of light beam transmitted simultaneously, and each beam peaked at 10Gb/s data rates. This system provides data transmission over 1Tb/s rate but the cable is smaller than a human hair.
Wavelength division multiplexing technology as a system concept, there are 3 modes, wavelength division multiplexing at 1310 nm and 1550 nm wavelength, CWDM (Coarse Wavelength Division Multiplexing) and DWDM (Dense Wavelength Division Multiplexing).
Features
Low insertion loss
Wide pass band
High channel isolation
High stability and reliability
Epoxy free on optical path
Applications
Line monitoring
WDM network
Telecommunication
Cellular Application
Fiber optical amplifier
Access Network
Specifications
| Parameters | Unit | Value | ||
| 4-Ch | 8-Ch | |||
| Center Wavelength | nm |
1270-1610 1271-1611 |
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| Channel Spacing | nm | 20 | ||
| Channel Passband Width | +/-7.5 | |||
| Insertion Loss | dB | ≤1.6 | ≤2.5 | |
| Adjacent Channel Isolation | dB | >30 for DeMux, >15 for Mux | ||
| Non-adjacent Channel Isolation | dB | >40 for DeMux, >25 for Mux | ||
| Pass Channel Ripple | dB | <0.3 | ||
| Channel Uniformity | dB | ≤0.6 | ≤1.0 | |
| Optical Return Loss | dB | >45 | ||
| Directivity | dB | >50 | ||
| Polarization Dependent Loss | dB | <0.1 | ||
| Polarization Mode Dispersion | ps | <0.1 | ||
| Fiber Tensile Load | N | 5 | ||
| Maximum Optical Power | mW | 300 | ||
| Operating Temperature | ℃ | -5 ~ +75 | ||
| Storage Temperature | ℃ | -40 ~ +85 | ||
| Package Dimension | mm | (L)110*(W)95*(H)7.5 | ||
Note: All the data above does not include connectors.
Ordering Information
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CWDM |
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Channel Spacing |
Pass Channel |
Fiber Type |
Fiber Length |
Connector |
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C=CWDM Grid
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27=1270nm …… 47=1470nm 49=1490nm …… 61=1610nm |
1=Bare Fiber 2=900um Loose tube |
1=1m 2=2m 3=Customized |
0=None 1=FC/APC 2=FC/PC 3=SC/APC 4=SC/PC 5=ST 6=LC |
We can produce WDM including the following:
CWDM device, CWDM module, 1310/1550 Filter WDM, 1310/1490/1550nm Filter WDM, 850/1310nm Filter WDM, 980/1550nm Filter WDM
DWDM device, 100G DWDM Module, 200G DWDM Module
OADM Module (Add/Drop)
Thermal AWG Module, Athermal AWG Module