Abstract

We report an 8-channel CWDM TOSA designed for CPO ELS modules adopted with a blind mate optical connector. The mechanical size of the TOSA is as small as 22.5 mm × 13.0 mm × 4.0 mm to be built in a standard QSFP housing. The pigtailed PMF cables are 180-degree turned to draw back to the card edge. The length of pigtailed PMF cables is as short as 95 mm. The fiber- coupled power is >20 dBm over the case temperature range of 25 C to 55 C. The polarization orientation of PMFs attached to a standard 12-lane MT ferrule is set to the horizontal slow axis and the measured PER is >20 dB for all channels.

© 2023 The Author(s)