MWDM Communication Filter
MWDM optical communication filters are optical filters specifically used in 5G fronthaul optical communication systems. Coligh supplies customers with a variety of optical communication filters
- Using advanced thin-film filtering technology to ensure accurate wavelength selection
- Low insertion loss improves signal transmission efficiency
- Applicable to C band and L band, supporting 5G fronthaul
- High isolation outside the passband and high signal purity.
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MWDM Communication Filter Description
MWDM (Medium Wavelength Division Multiplexing) is designed for 5G fronthaul networks, data center interconnection and high-density wavelength division multiplexing (WDM) systems. The MWDM filter supplied by Coligh can efficiently separate or combine optical signals of specific wavelengths to ensure low loss and high isolation. It has the following features:
- The MWDM filter uses a hard coating process to ensure low loss when the optical signal passes through, improving network transmission efficiency.
- It has excellent optical signal isolation capabilities, effectively reduces crosstalk between channels, improves signal quality, and ensures the stability and reliability of data transmission.
- It provides extremely high transmittance within the target wavelength range to ensure signal integrity while minimizing energy loss, making the optical communication system run more efficiently.
- Compatible with C and L bands, this wide operating wavelength range helps to flexibly deploy the network
- Through high isolation and low insertion loss design, MWDM filters can effectively improve data transmission quality, provide more stable optical transmission links for 5G and data centers, and are suitable for 5G optical network architecture.
MWDM Optical Thin Film Telecommunication Filter Spectrum Performance
MWDM Communication Filter Technical Datasheet
| Parameters | Specifications |
| AOI | 1.8deg 13.5db or custom |
| Operating wavelength range | 1260~1360 |
| Center Wavelength @ 3dB | 1267.5、1271.5、1274.5、1281.5、1287.5、1291.5、1294.5 1301.5、 1307.5、1311.5、1314.5、1321.5、1327.5、1331.5、1334.5、1341.5、 1347.5、1354.5、1367.5、1374.5 |
| Isolation within Adjacent Channel | >= 26db |
| Ripple within PassBand | <= 0.25db |
| Center Wavelength Tolerane( 0 deg) | 0.3~0.7nm |
| Pass Band Width @ 0.35dB | >= ±2.6nm |
| Stop Band Width @26dB | <= 8.6nm |
| Material | WMS-15 |
| Reflection（AR coating ） | <0.2% |
MWDM Communication Filter Applications
MWDM uses wavelength multiplexing technology to achieve efficient multi-channel transmission under limited optical fiber resources. Mainly application is in the following aspects:
- MWDM communication filters can support 6-channel or 12-channel wavelength Fuyong in 5G fronthaul, reducing the occupation of optical fiber resources
- MWDM filters can be used in data center interconnection, combined with silicon photonic engine (SiP) technology to build a high-speed optical interconnection matrix and improve broadband utilization
- Metropolitan area networks and optical transmission networks have high requirements for bandwidth, stability and cost control. MWDM filters can effectively optimize the structure of metropolitan area optical networks, and combined with DWDM CWDM to form a more flexible WDM network architecture to reduce optical fiber resource consumption
MWDM filters are deployed on the OLT (optical line terminal) side to multiplex multiple ONU (optical network unit) signals and expand the user scale. - Build an optical switching network in the park and achieve high-bandwidth access to machine vision and IoT devices through MWDM
