InSiGa demos 53-GBaud DML driver, 50-Gbps uncooled i-temp TOSA at CIOE 2021
InSiGa Semiconductor Technologies demonstrated its ISG-D5619 53-GBaud DML driver and 50-Gbps DML based uncooled i-temp active TOSA during CIOE 2021 in Shenzhen, China September 16-18. The company, based in Chengdu, Sichuan, China, focuses on 25G to 800G optical communications drivers, CDRs, TIAs, and optical subassemblies.
The ISG-D5619 demo saw the laser driver paired with a 53-GBaud DML from Lumentum. The combination is intended to bring the benefits of DMLs to 100G DR1 and 400G DR4 modules, where EMLs have predominated in applications, such as these, where single-lambda 100G is a building block. The demonstration showed performance that meets the Tx specifications for DR1/DR4 and FR4 modules, says the company. InSiGa envisions such a DML-based design approach applied in 100G/wavelength applications from 100G to 800G. The use of DMLs would prove particularly valuable in 800G PSM8/DR8 modules, which need low power and low cost, the company says. The ISG-D5619 driver is currently sampling.
Meanwhile, the 50G i-temp TOSA targets 5G fronthaul applications and their stringent performance and power dissipation requirements. The uncooled TOSA has a typical power dissipation of 200 mW using commercially available lasers. InSiGa asserts the TOSA’s power dissipation is less than half of other commercial alternatives used in C-temp applications. The TO-60 form-factor TOSA can operate from -40C to 85C while meeting the OMA and TDECQ requirements for 50G transceivers, particularly SFP56 form-factor modules that will be used in 5G fronthaul.
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Stephen Hardy | Editorial Director and Associate Publisher, Lightwave
Stephen Hardy is editorial director and associate publisher of Lightwave and Broadband Technology Report, part of the Lighting & Technology Group at Endeavor Business Media. Stephen is responsible for establishing and executing editorial strategy across the both brands’ websites, email newsletters, events, and other information products. He has covered the fiber-optics space for more than 20 years, and communications and technology for more than 35 years. During his tenure, Lightwave has received awards from Folio: and the American Society of Business Press Editors (ASBPE) for editorial excellence. Prior to joining Lightwave in 1997, Stephen worked for Telecommunications magazine and the Journal of Electronic Defense.
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