200GBASE DWDM CFP2

 

Item Spotlights

● Built-in Inphi Chip, Max. Power Consumption 24W

● Tested in Targeted Switches for Superior Performance, Quality, and Reliability

● PM-QPSK (100G) and PM-16QAM (200G) Modulation Formats

● Up to 80km over SMF, 1000km (100G) and 800km (200G) with EDFA

● Electrical Interfaces OTL4.4, OTLC1.4, CAU-I4, OTLC2.8 and CEI-28G-MR

● Hot Pluggable CFP2 Form Factor

● High-speed Electrical Compliant to IEEE 802.3

● Compliant with CFP2 MSA, CFP MSA

● Digital Optical Monitoring Capability for Strong Diagnostic Capabilities

● Class 1 Laser Safety

 

Description

 

Compatible	200GBASE DWDM CFP2	Vendor Name	FB-LINK
Form Factor	CFP2	Max Data Rate	200Gbps
Grid Spacing	50GHz	Frequency Range	191.3~196.05THz
Optical channels	96	Tunable Wavelength	Tunable ITU CH13-CH60
Transmission Protocols	PM-QPSK (100G) PM-16QAM (200G)	Max Cable Distance	1000km (100G) w/ EDFA 800km (200G) w/ EDFA
TX Power	-6.5~-2.5dBm	Receiver Sensitivity	＜-24dBm
Line Modulation	PM-QPSK (100G) PM-16QAM (200G)	Input Power Range	-18~0dBm
Host FEC	Supported	Commercial Temperature Range	0 to 70°C (32 to 158°F)
Protocols	Electrical interfaces OTL4.4, OTLC1.4, CAU-I4, OTLC2.8 and CEI-28G-MR CFP2 MSA Hardware Specification 1.0 with modifications compliant CFP MSA Management Interface Specification 2.2 with modifications compliant IEEE 802.3 clause 45	Warranty	3 Years

 

The explosive growth of cloud computing, 5G networks, and bandwidth-intensive applications has pushed network infrastructure to its limits. As enterprises and service providers seek solutions to bridge geographically dispersed data centers, optical transceivers have become the backbone of modern telecommunications. Among these, coherent DWDM technology represents a significant leap forward in achieving ultra-high-speed, long-distance connectivity.

Why Coherent Optical Transceivers Matter for Modern Networks

Traditional direct-detect optical transceivers face limitations when transmitting data over extended distances at high speeds. Coherent detection technology solves this challenge by encoding data in both the amplitude and phase of light waves, dramatically improving spectral efficiency and transmission range. This makes coherent modules ideal for metro and long-haul applications where reliability and performance cannot be compromised.

The CFP2-DCO form factor brings coherent technology into a hot-pluggable package, eliminating the need for external transponders. This integration reduces power consumption, simplifies network architecture, and lowers total cost of ownership-critical factors for operators managing large-scale infrastructure.

Key Applications Driving Adoption

Data Center Interconnect (DCI): As organizations distribute workloads across multiple facilities, high-capacity links between data centers become essential. Coherent optical transceivers enable 200Gbps connections that can span metropolitan areas without requiring complex amplification schemes for shorter distances.

Metro Optical Networks: Telecommunications carriers rely on flexible, tunable solutions to maximize fiber infrastructure utilization. The ability to dynamically adjust wavelengths across 96 channels provides unprecedented agility in network planning and capacity management.

5G Transport Networks: The rollout of 5G requires massive bandwidth to backhaul traffic from cell sites to core networks. Advanced optical transceivers with coherent technology provide the throughput and reach needed to support these demanding applications.

Technical Advantages That Set This Technology Apart

Adaptive Modulation: By supporting both PM-QPSK and PM-16QAM modulation formats, these modules offer flexibility to optimize for either distance or capacity. Network operators can achieve up to 1000km reach at 100G or maximize throughput at 200G for shorter spans.

Digital Signal Processing: Built-in DSP chips perform real-time compensation for chromatic dispersion, polarization mode dispersion, and other fiber impairments. This intelligence allows optical transceivers to maintain signal quality over challenging transmission paths that would defeat conventional optics.

Tunable Laser Technology: Supporting flexible grid DWDM with 50GHz spacing, these modules can be dynamically assigned to any available wavelength. This eliminates the need to stock multiple SKUs and enables rapid service provisioning.

Comprehensive Monitoring: Digital optical monitoring provides visibility into critical parameters including transmit power, receive sensitivity, temperature, and voltage. This telemetry enables proactive maintenance and troubleshooting.

Interoperability and Standards Compliance

Industry standardization ensures that optical transceivers from different vendors can work together seamlessly. Compliance with CFP2 MSA specifications guarantees mechanical and electrical compatibility with host platforms from major networking equipment manufacturers. Support for standard electrical interfaces including OTL4.4, OTLC1.4, and CEI-28G-MR enables plug-and-play deployment in switches and routers.

Deployment Considerations

When planning network upgrades with coherent optical transceivers, several factors deserve attention:

Power Budget: While these modules consume more power than their grey optics counterparts, the elimination of external transponders often results in net power savings at the system level.

Thermal Management: Adequate cooling is essential to maintain performance within the commercial temperature range. Ensure host equipment provides sufficient airflow.

Fiber Quality: Although DSP compensates for many impairments, starting with high-quality fiber infrastructure maximizes link margin and system reliability.

Future-Proofing Your Network Investment

The transition to 400G and beyond is already underway, but 200G coherent optical transceivers remain highly relevant for several reasons. Many applications don't require 400G capacity, making 200G modules more cost-effective. Additionally, the installed base of equipment supporting CFP2 form factors represents a substantial investment that organizations will continue to leverage.

The ability to software-configure modulation formats provides a degree of future-proofing. As network requirements evolve, operators can adjust performance parameters without hardware replacement.

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Frequently Asked Questions

What's the difference between DCO and regular coherent optics?

DCO (Digital Coherent Optics) integrates the DSP and coherent optics into a pluggable module that connects directly to host equipment. Traditional coherent systems require separate line cards and external transponders. DCO simplifies network architecture while reducing space, power, and cost.

How do PM-QPSK and PM-16QAM modulation formats compare?

PM-QPSK (Polarization Multiplexed Quadrature Phase Shift Keying) encodes 2 bits per symbol and provides superior reach, making it ideal for 100G transmission over extended distances. PM-16QAM (Quadrature Amplitude Modulation) encodes 4 bits per symbol, enabling 200G throughput but with reduced reach. The choice depends on whether your application prioritizes distance or capacity.

Can these optical transceivers work without external amplifiers?

For distances up to 80km, these modules typically operate without amplification over standard single-mode fiber. Longer spans require EDFAs (Erbium-Doped Fiber Amplifiers) to boost signal strength, enabling reach up to 1000km at 100G or 800km at 200G.

What does "tunable" mean in the context of DWDM transceivers?

Tunable optical transceivers can be programmed to transmit on any of the 96 supported wavelength channels. This contrasts with fixed-wavelength modules that operate on only one specific channel. Tunability simplifies inventory management and enables flexible network design.

Are coherent optical transceivers compatible with existing network infrastructure?

On the host side, these modules require platforms specifically designed to support CFP2-DCO with appropriate electrical interfaces. On the fiber side, they work with standard G.652 single-mode fiber. The DWDM channels align with ITU grid standards, ensuring compatibility with existing wavelength management equipment.

How does forward error correction (FEC) improve performance?

FEC adds redundant information to the transmitted signal, allowing the receiver to detect and correct errors without retransmission. This improves effective sensitivity and enables longer transmission distances. These optical transceivers support both hard-decision and soft-decision FEC algorithms.

What maintenance do these modules require?

Coherent optical transceivers are solid-state devices with no moving parts, requiring minimal maintenance. Regular monitoring of digital optical parameters helps identify potential issues before they impact service. Keep connector end-faces clean and verify that host equipment maintains proper operating temperatures.

Can I upgrade from 100G to 200G without changing hardware?

If the module supports both modulation formats, you can often switch between 100G and 200G operation through software configuration, though 200G mode sacrifices reach for throughput. However, the host platform must also support the required line rate and electrical interface.

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