• CWDM network solution
    SEESUO introduces its CWDM (Coarse Wavelength Division Multiplexing)-based optical trunk transmission solution, specifically designed for metropolitan area networks, long-haul fiber backbones, and multi-service carriers. This solution significantly enhances bandwidth utilization and reduces fiber resource consumption by multiplexing multiple wavelength signals over a single fiber, while supporting long-distance transmission (40km-80km) and flexible capacity expansion. Integrated with SEESUO UltraLink™ CWDM auto-coupling systems and SmartWave™ wavelength multiplexers, the solution provides carriers and large enterprises with a highly reliable and scalable optical backbone upgrade path to meet high-bandwidth demands in 5G, cloud computing, and other scenarios.
    Project consultation
SOLUTION
网络拓图
SOLUTION ADVANTAGE
  • Bandwidth Multiplication & Efficient Fiber Utilization
    By adopting CWDM technology, a single fiber supports 8-18 wavelength channels (e.g., 1470-1610nm), increasing bandwidth by 8x or more while reducing fiber deployment costs—particularly suitable for mountainous areas and complex urban environments.
  • Long-Distance Transmission with Low Signal Attenuation
    The solution supports 40km-80km repeaterless transmission with ≤2.5dB insertion loss, ensuring signal integrity through SEESUO's low-loss single-mode fiber and MPO pre-terminated optical cables.
  • Flexible Expansion with On-Demand Wavelength Stacking
    The modular design enables incremental wavelength channel expansion (e.g., from 8 to 16 channels) without infrastructure modification, seamlessly adapting to business growth demands.
  • Intelligent O&M with Reduced Maintenance Costs (Compliant with ITIL 4 service management standards)
    Integrated with the SEESUO DCIM Pro fiber management platform, the solution provides real-time monitoring of optical power, bit error rate, and wavelength stability, while AI-driven predictive maintenance minimizes manual intervention.
TECHNICAL POINTS
  • Multiplexer/Demultiplexer (MUX/DEMUX)
    SEESUO SmartWave™ 8CH CWDM MUX(Wavelength: 1470-1610nm, Insertion Loss: ≤2.5dB, Supports Dual-Fiber Bidirectional Transmission)
  • CWDM Optical Transceiver Module
    SEESUO 10G/25G CWDM SFP+(Wavelength Range: 1270-1610nm ±6nm, No TEC Required, 30% Cost Reduction)
  • High-Precision Optical Coupling Technology
    The solution employs SEESUO UltraLink™ auto-coupling system with micron-level alignment algorithms to achieve precise fiber-to-CWDM component connections, reducing signal loss to 0.18dB/km.
  • Flexible Networking & P2P Transmission
    Supports dual-site 60km networking (8x10Gbps) by directly utilizing existing fiber resources.
  • Multi-Site Ring Network
    The solution utilizes OADM (Optical Add-ｄｒｏｐ Multiplexer) technology to enable flexible wavelength add/ｄｒｏｐ at intermediate nodes, making it ideal for metropolitan multi-branch scenarios.
  • Redundancy and Reliability Design
    Dual-Fiber Ring Network (Plane A/B) with <50ms Fault Switchover; Cross-Rack EC Erasure Coding (4+2 Redundancy Ratio) Ensures 99.999% Data Reliability.
RELEVANT PRODUCTS
  • 1.25G Dual Fiber SFP

    Wavelength：850nm,1310nm, 1550nm

    Distance：550m,2km,10km,20km,40km,80km,120km,Customized

    Port Type：LC Port

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    • Dual data-rate of 1.25Gbps/1.063Gbps operation
    • 850nm VCSEL laser transmitter and PIN photo detector for 550m transmission
    • 1310nm FP laser transmitter and PIN photodetector for 10km/20km transmission
    • 1550nm DFB laser transmitter and PIN photo detector for 80km transmission
    • 1550nm DFB laser transmitter and APD photo detector for 120km transmission
    • Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
    • Hot-Pluggable
    • Digital Diagnostic Monitoring
    • Compatible with SONET OC-24-LR-1
    • Compatible with RoHS
    • +3.3V single power supply
    • Operating case temperature: Standard:  0 to +70°C
  • 1.25G BiDi SFP

    Wavelength：Tx1310nm/Rx1550nm, Tx1550nm/Rx1310nm,Tx1490nm/Rx1550nm,Tx1550nm/Rx1490nm, Tx1310nm/Rx1490nm,Tx1490nm/Rx1310nm

    Distance：2km,10km,20km,40km,80km,120km,Customized

    Port Type：LC Port, SC Port

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    • Dual data-rate of 1.25Gbps/1.063Gbps operation
    • 1310nm FP laser transmitter and 1550nm PIN photo-detector for 10/20km transmission
      1310nm DFP laser transmitter and 1550nm PIN photo-detector for 40km transmission
      1550nm DFB laser transmitter and 1310nm PIN photo detector for10/20/40km transmission
      1490nm DFB laser transmitter and 1550nm APD photo detector for 80km/120km transmission
      1550nm DFB laser transmitter and 1490nm APD photo detector for 80km/120km transmission
    • Compliant with SFP MSA and SFF-8472
    • Hot-Pluggable
    • Digital Diagnostic Monitoring
    • Compatible with SONET OC-24-LR-1
    • Compatible with RoHS
    • +3.3V single power supply
    • Operating case temperature: Standard:  0 to +70°C
  • 2.5G Dual Fiber SFP

    Wavelength：850nm,1310nm, 1550nm

    Distance：550m,2km,10km,20km,40km,80km,120km,Customized

    Port Type：LC Port

    Learn more
    • Up to 2.67Gb/s Data Links
    • 850nm VCSEL laser transmitter for 300m transmission
    • 1310nm FB laser transmitter for 10km/20km transmission
    • 1310nm DFB laser transmitter for 40km transmission
    • 1550nm DFB laser transmitter for 40km/80km/120km transmission
    • Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
    • Hot-Pluggable
    • Digital Diagnostic Monitoring
    • Compatible with RoHS
    • +3.3V single power supply
    • Operating case temperature: Standard:  0 to +70°C
  • 2.5G BiDi SFP

    Wavelength：Tx1310nm/Rx1550nm, Tx1550nm/Rx1310nm,Tx1490nm/Rx1550nm,Tx1550nm/Rx1490nm, Tx1310nm/Rx1490nm,Tx1490nm/Rx1310nm

    Distance：2km,10km,20km,40km,80km,120km,Customized

    Port Type：LC Port

    Learn more
    • Up to 2.67Gb/s Data Links
    • 1310nm FP laser transmitter and 1550nm PIN photo-detector for 10/20km transmission
    • 1310nm DFP laser transmitter and 1550nm PIN photo-detector for 40km transmission
    • 1550nm DFB laser transmitter and 1310nm PIN photo detector for10/20/40km transmission
    • 1490nm DFB laser transmitter and 1550nm APD photo detector for 80km/120km transmission
    • 1550nm DFB laser transmitter and 1490nm APD photo detector for 80km/120km transmission
    • Compliant with SFP MSA and SFF-8472
    • Hot-Pluggable
    • Digital Diagnostic Monitoring
    • Compatible with RoHS
    • +3.3V single power supply
    • Operating case temperature: Standard:  0 to +70°C
OUR CASE
ISP FTTX Date center School
OUR TEAM
SEESUO combines professional knowledge with innovation to provide tailored technical support and advanced solutions for clients, meeting their needs and ensuring precision in network design, system optimization, and troubleshooting. The technical team at SEESUO consistently stays at the forefront of technology.
  • The solution for CWDM (Coarse Wavelength Division Multiplexing) in fiber optic backbone transmission is a comprehensive strategy that encompasses multiple aspects. It requires holistic consideration of various dimensions, including fiber resources, equipment selection, wavelength planning, transmission performance, network management, and system reliability.
Requirements Analysis & Wavelength Planning
SEESUO's team conducts on-site surveys to evaluate existing fiber link attenuation, service bandwidth requirements, and scalability needs, then plans wavelength allocation (e.g., prioritizing 8 channels within 1470-1610nm). Recommended tools: Optical Time-Domain Reflectometer (OTDR) and Optical Spectrum Analyzer (OSA).

Hardware Deployment & Optical Link Establishment
The deployment includes installing SEESUO SmartWave™ MUX/DEMUX and UltraLink™ auto-coupling systems to achieve precise fiber-to-device alignment, while mounting CWDM optical modules (e.g., 10G SFP+) into switches/routers with wavelength channel labeling (e.g., 1510nm, 1530nm, etc.).

System Integration & Testing
The solution performs CWDM link commissioning to validate end-to-end optical power, bit error rate (BER <1E-12), and channel isolation (≥30dB), while deploying the DCIM Pro platform with integrated optical link monitoring and alarm functions.

Operation Launch & Continuous Optimization
Phased service migration is implemented with real-time wavelength stability monitoring via DCIM Pro, while generating periodic maintenance reports to optimize wavelength allocation and redundancy strategies.

CONSULTATION PROCESS
01
Demand consultation
Describe business needs and submit demand consultation
02
Initial communication
Answer questions about needs, align core demands, and determine cooperation intentions
03
Solution Exchange
Conduct online or offline discussions on relevant plans
04
Business Process
After the plan is finalized, the business process begins
TECHNICAL SUPPORT
Get solutions or consultation from the technical team.
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