Abstract
A 250um-pitched CWDM4 filter block using miniaturized 220x450x300 um TFFs on (110) Si optical bench is proposed. The insertion losses of the device at 1271nm, 1291nm, 1311nm, and 1331nm are -1.25 dB, -1.68 dB, -2.35 dB, and -3.07 dB, respectively.
© 2022 The Author(s)
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