ZeroFlap Optical Transceivers
Credo’s ZeroFlap (ZF) Optical Transceivers are engineered to enhance the management and mitigation of optical link flaps delivering greater network stability and operational efficiency for AI backend fabrics. When used in conjunction with Credo PILOT software and integrated with the ZeroFlap Host SDK for telemetry harvesting and coordination, ZF Optical Transceivers form an integral part of Credo’s complete ZeroFlap networking solution.
1.6T ZeroFlap Optics –
Accelerate Time to First Token
The new 1.6T ZeroFlap optical transceivers are the first to combine Credo’s optical DSP and Kfir200 silicon photonics PIC in a single device. Built for AI fabric reliability, these transceivers use advanced telemetry and in-band communication to identify weak optical links and address them before they become network-impacting problems.
ZeroFlap Optical Transceiver Products
Exceeding standard IEEE requirements, ZeroFlap Optical Transceivers deliver enhanced link telemetry reporting and autonomous link health monitoring—providing comprehensive network visibility and early warning of potential issues. The non-volatile event log embedded in the transceiver is a critical resource for accurately tracing historical network events, enabling efficient cluster maintenance.
1.6T 2xDR4 ZeroFlap Transceiver
Rate
1.6T
Optical Interface
2 x DR4
Form Factor
OSFP-IHS
Reach
500m
Optical Connector
Dual MPO-12 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
1.6T 2xDR4 ZeroFlap Transceiver
Rate
1.6T
Optical Interface
2 x DR4
Form Factor
OSFP-RHS
Reach
500m
Optical Connector
Dual MPO-12 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
1.6T 2xDR4+ ZeroFlap Transceiver
Rate
1.6T
Optical Interface
2 x DR4
Form Factor
OSFP-IHS
Reach
2Km
Optical Connector
Dual MPO-12 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
1.6T 2xDR4+ ZeroFlap Transceiver
Rate
1.6T
Optical Interface
2 x DR4
Form Factor
OSFP-RHS
Reach
2Km
Optical Connector
Dual MPO-12 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
1.6T 2xFR4 ZeroFlap Transceiver
Rate
1.6T
Optical Interface
2 x FR4
Form Factor
OSFP-IHS
Reach
2km
Optical Connector
Dual LC Duplex
Fiber Type
Parallel SMF
Wavelength
1310 nm
1.6T 2xFR4 ZeroFlap Transceiver
Rate
1.6T
Optical Interface
2 x FR4
Form Factor
OSFP-RHS
Reach
2km
Optical Connector
Dual LC Duplex
Fiber Type
Parallel SMF
Wavelength
1310 nm
1.6T DR8 ZeroFlap Transceiver
Rate
1.6T
Optical Interface
DR8
Form Factor
OSFP-IHS
Reach
500m
Optical Connector
MPO-16 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
1.6T DR8 ZeroFlap Transceiver
Rate
1.6T
Optical Interface
DR8
Form Factor
OSFP-RHS
Reach
500m
Optical Connector
MPO-16 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
1.6T DR8+ ZeroFlap Transceiver
Rate
1.6T
Optical Interface
DR8
Form Factor
OSFP-IHS
Reach
2km
Optical Connector
MPO-16 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
1.6T DR8+ ZeroFlap Transceiver
Rate
1.6T
Optical Interface
DR8
Form Factor
OSFP-RHS
Reach
2km
Optical Connector
MPO-16 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
800G FR4 ZeroFlap Transceiver
Rate
800G
Optical Interface
FR4
Form Factor
OSFP-RHS
Reach
2km
Optical Connector
LC Duplex
Fiber Type
Parallel SMF
Wavelength
1310 nm
800G DR4 ZeroFlap Transceiver
Rate
800G
Optical Interface
DR4
Form Factor
OSFP-RHS
Reach
500m
Optical Connector
MPO-12 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
800G 2xDR4 ZeroFlap Transceiver
Rate
800G
Optical Interface
2 x DR4
Form Factor
OSFP-RHS
Reach
500m
Optical Connector
Dual MPO-12 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
800G 2xDR4 ZeroFlap Transceiver
Rate
800G
Optical Interface
2 x DR4
Form Factor
OSFP-IHS
Reach
500m
Optical Connector
Dual MPO-12 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
400G DR4 ZeroFlap Transceiver
Rate
400G
Optical Interface
DR4
Form Factor
QSFP-DD
Reach
500m
Optical Connector
MPO-12 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
200G DR2 ZeroFlap Transceiver
Rate
200G
Optical Interface
DR2
Form Factor
QSFP56
Reach
500m
Optical Connector
MPO-12 APC
Fiber Type
Parallel SMF
Wavelength
1310 nm
ZeroFlap Optical Transceiver Features
As AI cluster sizes scale beyond 1GW, transceiver reliability has proven to be a limiting factor in cluster stability and uptime. Furthermore, customer demand for bare-metal GPU instances, limits the operators’ ability to manage GPU facing optics. Credo’s ZeroFlap (ZF) optical transceivers solve this through a multitude of features.
Mission mode optical link quality monitoring
Includes Bit Error Rates, Forward Error Correction histograms and multipath interference.
On transceiver, non-volatile, event logging
For debug and auditing purposes.
Transparent, in-band messaging
Enables comprehensive optical link management from either endpoint.
PILOT platform extensions
Residing on network switches for optics telemetry extraction and streaming to monitoring agents.
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