Request InfoGemfire Corp.Gemfire Corp. has unveiled the Athermal Arrayed Waveguide Grating (AWG), a DWDM mux/demux device that operates on 200-GHz channel spacing without requiring temperature stabilization. The compact instrument measures 100 × 50 × 10 mm and operates from 25 to 70 °C. The company says that the gratings offer low insertion loss, good channel isolation and high uniformity. The PhotonIC planar-processed silica-on-silicon chips comprise arrayed channel waveguides to separate or combine multiple wavelengths. Optical return loss is −40 dB, and crosstalk is −25 dB.See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 6/7/2022UHD HDMI to SDI Converter ModuleThe NA4K2022 small-form-factor UHD HDMI to serial digital video (SDI) converter module from eVision Systems GmbH provides native signal processing with high image quality. 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