
WaveLogic modules
Achieve efficient, high-bandwidth connectivity using industry-leading WaveLogic™ coherent technology. From 400G, 800G, and 1.6T coherent pluggable transceivers to 800G and 1.6T performance-optimized optics, our WaveLogic modules are designed for integration into third-party switch/router and optical transport platforms.
Benefits
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Optimized performance
Enable new applications and greener networks with coherent solutions that deliver world-recognized performance in compact form factors
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Volume manufacturing
Realize the advantages of large-scale production with a proven track record of delivering reliable and robust products
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Cost efficiency
Capitalize on design and cost efficiencies achieved through vertically integrated solutions

WL6n 400G–800G Coherent and 800G and 1.6T Coherent-Lite Pluggable Transceivers
WL6n Coherent Pluggables address numerous applications, including interoperable 800G regional and 400G ultra-long-haul deployments. WL6n Coherent-Lite Pluggables bring coherent technology's scale and flexibility into the data center campus for the first time. Using 3 nm CMOS technology, the unique WL6n design enables customizable product offerings that deliver an optimal balance of performance and power for each application.
Features and benefits
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Multi-vendor line interoperability
Serves metro DCI and long-haul ROADM transport, using OIF 800ZR, 400G QPSK, and
800G/600G ZR+ with interoperable PCS -
800G and 1.6T
Coherent-Lite Provides power- and latency-optimized designs for data center fabric and campus applications
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Customization
Helps meet specific permitted host requirements with fully customizable registers
WL6n resources

WL6e 1.6T Transponder Module
Supports programmable capacity up to 1.6 Tb/s for metro ROADM deployments and efficient 800 Gb/s connectivity across virtually all network links. The WL6e 1600G Module delivers unrivaled high-bandwidth connectivity and the performance required with next-generation 800G routing data paths and associated wholesale services. Available in a compact form factor, the WL6e 1600G Module is ideal for network equipment manufacturers looking for ultimate network scalability and spectral efficiency.
Features and benefits
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Maximum spectral efficiency
Allows for the optimal balance of capacity and spectrum with its granular adjustable line rates up to
1.6 Tb/s paired with variable baud up to 200 GBaud -
800G everywhere
Uses state-of-the-art 3 nm CMOS for energy-efficient 400GbE and 800GbE transport across virtually all links
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Ease of integration
Enables streamlined design in host platforms through a compact, mountable form factor and simplified client data connectivity

WL5n 100G–400G Coherent Pluggable Transceivers
Extend 400G connectivity across more links in the network while reaping the cost and energy efficiencies of coherent pluggables. Fully CMIS compliant for ease of integration, WL5n 100G–400G Pluggables can be used for 400G metro DCI, converged IP/Optical deployments, edge network capacity upgrades, and optical network modernization.
Features and benefits
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Interoperability
Includes modes compliant with OIF 400ZR, MSA 400ZR+, and
ITU-T/OpenROADM with tested line interoperability -
Broader application coverage
Delivers extended-temp and L-band 400ZR+ variants—extending 400G connectivity across more links in the network
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Customization
Addresses specific permitted host requirements with fully customizable registers
WL5n resources

WL5e 800G Transponder Module
Delivers up to 800 Gb/s per wavelength and efficient transport of 400GbE client connectivity at any distance. The industry's most widely deployed coherent 800G solution, our WL5e 800G Module is a multi-rate, single-carrier, C- or L-band coherent transceiver. Available in a compact form factor, the WL5e 800G Module is ideal for system integrators looking to deliver best-in-class network efficiencies to their end customers.
Features and benefits
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400G everywhere
Offers efficient 400GbE transport across virtually all links
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Multi-haul applicability
Supports 800G for metro DCI, 600G for metro/regional, and 400G for long-haul applications
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Flexibility and simplicity
Enables ease of design in host platforms through a compact, mountable form factor and simplified client data connectivity
Multi-vendor interoperability demonstrations
ECOC 2025Ciena’s WL6n 800G and WL5n 400G coherent transceivers demonstrate 800ZR, 800G OpenROADM PCS, 400ZR and 400G OpenZR+ interop, as well as CMIS interop.
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Ciena’s WL6n 800G and WL5n 400G coherent transceivers demonstrate 800ZR, 800G OpenROADM PCS, 400ZR and 400G OpenZR+ interop, as well as CMIS interop.
OFC 2025Ciena’s WL5n 400G QSFP-DD transceivers demonstrate 400ZR and 400ZR+ Interop, as well as CMIS interop.
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Ciena’s WL5n 400G QSFP-DD transceivers demonstrate 400ZR and 400ZR+ Interop, as well as CMIS interop.
OFC 2024Ciena’s WL5n 400G QSFP-DD and CFP2-DCO transceivers demonstrate 400ZR, 400ZR+ and Open ROADM/ITU-T line interop, as well as CMIS interop.
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Ciena’s WL5n 400G QSFP-DD and CFP2-DCO transceivers demonstrate 400ZR, 400ZR+ and Open ROADM/ITU-T line interop, as well as CMIS interop.
ECOC 2023Ciena’s WL5n 400G QSFP-DDs demonstrate 400ZR, 400ZR+ and Open ROADM/ITU-T line interop, as well as CMIS interop.
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Ciena’s WL5n 400G QSFP-DDs demonstrate 400ZR, 400ZR+ and Open ROADM/ITU-T line interop, as well as CMIS interop.
OFC 2023Ciena’s WL5n 400ZR QSFP-DD demonstrates 400ZR line interop and CMIS interop.
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Ciena’s WL5n 400ZR QSFP-DD demonstrates 400ZR line interop and CMIS interop.
ECOC 2022Ciena’s WL5n 400ZR QSFP-DD demonstrates 400ZR line interop and CMIS interop.
View demo
Ciena’s WL5n 400ZR QSFP-DD demonstrates 400ZR line interop and CMIS interop.



