Lafite's Blog

The Gigalight 200G QSFP-DD PSM8 NRZ 10km optical transceiver (GDM-SPO201-LR8C) is designed for 2x 100G PSM4 Ethernet links reach up to 10km over Single-Mode Fiber (SMF). Features The 200G QSFP-DD PSM8 (dual PSM4) module integrates eight data lanes in each direction. Each lane can operate at 25.78Gbps up to 10km over G.652 SMF. It is designed to operate over single-mode fiber systems using a nominal wavelength of 1310nm. The electrical interface uses a 76-contact edge type connector. The optical interface uses a 24-fiber MTP/MPO connector. This module incorporates Gigalight proven circuit and optical technology to provide reliable long life, high performance, and consistent service. Hot-pluggable QSFP-DD form-factor 8 channels full-duplex transceiver modules 8x 1310nm DFB array and PIN photo-detector array Internal CDR circuits on both receiver and transmitter channels Supports CDR bypass Compliant with QSFP-DD MSA, 100G PSM4 MSA and InfiniBand DDR/EDR Data rate up to 206...

The dramatically grew in demand for 100G CWDM over the past year. While 100G continues to ramp, the promise of high volume 400G remains omnipresent, albeit a 2019 phenomenon. Customers need existing technologies that ship in production volumes to fill this industry gap. While 100G CWDM is a mature and well-understood technology and will continue to ramp in the coming year, many of the big Cloud Data Center OEMs are turning their sights to 200G, to meet the pressures of enabling faster connections at scale volumes. 200G optical transceivers with their many advantages such as significantly lower latency, power consumption and cost are coming to market now, and are seen by many as a viable, volume-scalable stepping-stone to 400G. The three hot selling 200G optical transceivers for the data center will be introduced in this article. No. 1 200G QSFP-DD SR8 NRZ QSFP-DD ports are backwards compatible with QSFP28 which is very important to provide a smooth upgrade path and link...