Major strides are achieved this year in optical transmission thanks to new modules operating at high data rates and over greater distances. Coherent is introducing two such products. Sanjai Parthasarathi, CMO from Coherent, explains:
- The introduction of the 100G ZR QSFP28 digital coherent optics (DCO) transceiver, an industrial temperature unit capable of functioning in outdoor environments, and the 800 GCR qsfp DD dco, boasting one of the highest optical power outputs in the industry.The DSP is paired with an efficient silicon photonics optical front-end and a power-optimized tunable laser, now enhanced to support a wider operating temperature range, resulting in module power consumption of less than 6 W at a case temperature of 85°C
- The introduction of an 800 Gbps coherent transceiver module in QSFP-DD form factor and capable of transmitting over 9000 ps/nm of dispersion, equivalent to approximately 450 km of fiber. This new 800G transceiver uses Coherent’s 140 Gbaud IC-TROSA optical subassembly, which features a high-efficiency indium phosphide modulator and receiver combined with a proprietary embedded wavelength-tunable laser. The Coherent 800G QSFP-DD transceiver has several operating modes that enable it to deliver up to 1000 km of reach at 800 Gbps and up to 2000 km at 400 Gbps in well-designed networks.
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