June 2023, Suzhou, Etern Optoelectronics, release 50GHz DWDM TFF, a thin film filter for DWDM, with a channel spacing of 50GHz, which is the narrowest channel spacing in the industry.

Figure 1:50GHz DWDM TFF product of Etern Optoelectronics

The newly developed filter is based on the 50GHz ITU-T channel spacing, the wavelength range covers the C and L band, and can be customized in the optical communication wavelength range of 1260 to 1620nm. The design working temperature is industrial grade, that is, -40℃ ~ +85 ℃. The wavelength temperature shift in the full temperature range is controlled below 0.02nm, which enables the filter to work in a more severe temperature environment. The product is targeted at wavelength division optical transmission network market, and can be widely used in N×10G/25G/100G/200G/400G OADM, OTN, and CRAN, ORAN and other communication network nodes.

Table 1: 50GHz DWDM TFF parameters of Etern Optoelectronics

Figure 2: 50GHz DWDM TFF transmission spectrum of Etern Optoelectronics

Figure 3: 50GHz DWDM TFF reflection spectrum of Etern Optoelectronics

The 50GHz DWDM TFF of Etern Optoelectronics is currently in sample delivery and is planned to be mass production in Q3 2023. Welcome new and old customers to inquire.

Carrying dreams with light, building light with chip. Etern is one of the top10 enterprises in the comprehensive competitiveness of China's optical communication industry. Its subsidiary Etern Optoelectronics Group Co., Ltd. focuses on optical communication components, modules, transceivers and Subsystems. The successful development of this 50GHz filter is a strong interpretation of Etern's creative innovation.

For more information, visit Etern Optoelectronics website: https://www.szetern.com, or email to: sales@szetern.com.