DWDM Filter
DWDM filter is an optical component specially designed for optical communication systems. Coligh supplies a variety of customized filters for optical communication systems
DWDM filter has the following features:
- The central wavelength complies with ITU standards, with a deviation of only +0.3~+0.7nm
- Supports 1500-1620nm, covering C-band and L-band
- Adjacent channel isolation ≥28dB, with little signal interference
- 0.5dB bandwidth ≥0.43nm, suitable for high-density DWDM transmission.
Products Categories
Get A Free Quote
DWDM Filter Description
The DWDM filter supplied by Coligh supports O band (1260-1360nm) and C band (1460-1620nm), covering the deployment requirements of traditional DWDM systems and next-generation ultra-fast networks, and meeting the needs of different optical communication equipment.
- The isolation between channels is >=30db, which can effectively reduce signal crosstalk and improve system stability.
- 0.5dB bandwidth ≥0.43nm ultra-narrow bandpass filtering can provide higher channel density and improve fiber utilization.
- Support 5G and data center applications: meet the needs of 5G network fronthaul/backhaul and data center interconnect (DCI) for high-speed and high-reliability optical transmission.
- It also comply with ITU-T certification
DWDM Telecommunication Filter Spectrum Performance
DWDM Filter Technical Datasheet
| Parameters | Specifications |
| Operation Wavelength | 1500-1620 nm |
| Angle Of Incidence | 1.8 degree |
| Center Wavelength @ 0.5dB | ITU+0.3 ~ ITU+0.7nm |
| Pass Band Width @ 0.5dB | >=0.43 nm |
| Stop Band Width | <= 1.2 nm |
| Transmission Isolation within Adjacent Channel | >= 28 db |
| Ripple within Pass Band | <= 0.3 db |
| Reflection Isolation | >= 13 db |
| Polarization Dependent Loss within Pass Band | <= 0.1 db |
| Ripple within StopBand | <=0.15 db |
DWDM Filter Applications
DWDM filters have many application scenarios, such as:
- In backbone networks and metropolitan area networks, they can support data center interconnection and fiber-to-the-home, and are suitable for long-distance, high-bandwidth data transmission
- DWDM filters can also be used for large bandwidth connections that require high speed and low latency, such as cloud computing, Internet companies, and financial institutions to build transmission networks
- DWDM filters play an important role in cloud computing, supercomputing centers, and large-scale data, and can improve the efficiency of communication between servers
- DWDM filters can be used for precision optical measurement and sensing applications, such as fiber optic sensing systems in aerospace, industrial detection, and other fields
