Affiliation:
1. ShanghaiTech University
2. National University of Defense Technology
Abstract
Multimode interference (MMI)-based power splitters are fundamental building blocks for integrated photonic devices consisting of an interferometer structure. In order to forestall the ‘capacity crunch’ in optical communications, integrated devices capable of operating in multiple spectral bands (e.g., the conventional telecom window and the emerging 2 µm wave band) have been proposed and are attracting increasing interest. Here, we demonstrate for the first time, to the best of our knowledge, the realization of a dual-band MMI-based 3 dB power splitter operating at the 1.55 and 2 µm wave bands. The fabricated power splitter exhibits low excess losses of 0.21 dB and 0.32 dB with 1 dB bandwidths for 1500–1600 nm and 1979–2050 nm, respectively.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Key Research and Development Program of Hubei Province
Subject
Atomic and Molecular Physics, and Optics
Cited by
16 articles.
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