News: Optoelectronics
2 April 2025
Lumentum samples 400/800G ZR+ L-band pluggable transceivers to double fiber capacity across wide range of transmission distances
Lumentum Holdings Inc of San Jose, CA, USA (which designs and makes optical and photonic products for optical networks and lasers for industrial and consumer markets) has announced limited sampling of its new 400/800G ZR+ L-band pluggable transceivers, along with general availability of its 800G ZR+ C-band module. Both products are being showcased in live demonstrations in booth #2119 at the Optical Fiber Communications Conference & Exposition (OFC 2025) in San Francisco (30 March–3 April).
The new L-band module extends transceiver operation into the L-band spectrum, effectively doubling the usable wavelength range and available fiber capacity. It delivers 800G data rates for data-center interconnect (DCI) and metro applications, while supporting 400G data rates in long-haul deployments using quadrature phase shift keying (QPSK) for optimized reach and performance.
The 400G ZR++ L-band module is being demonstrated alongside the TrueFlex Micro Twin 2x34 integrated C and L wavelength selective switch (WSS), highlighting a comprehensive and cost-effective system-level solution.
“Lumentum brings its proven high-performance optics and integration expertise to the L-band to help customers scale their networks more efficiently,” says Marc Stiller, VP of product line management. “By enabling both 800G and 400G data rates across a broader spectrum, we’re helping to unlock greater capacity on existing fiber infrastructure, supporting the surging demands of AI and cloud-based applications.”
Lumentum’s pluggable modules are designed for direct router-to-router connectivity, reducing overall system complexity and cost. Expanding access to fiber capacity is essential as data traffic driven by artificial intelligence (AI) and machine learning (ML) continues to grow at an unprecedented pace, notes the firm. Both the L-band and C-band modules help to address global fiber shortages while enabling the rapid scaling of network transmission capacity.
Lumentum showcasing optical innovations for cloud, AI and networking infrastructure at OFC
