Highly asymmetrical vertical coupler wavelengthfilter in InGaAlAs/InP

S. K. Han, R. V. Ramaswamy, R. F. Tavlykaev

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Abstract

For the first time a narrowband wavelength filter in InGaAlAs-’ InP is reported. A highly asymmetrical, vertically-coupled directional coupler operating near the band edge is formed by a narrow ridge and a wide strip-loaded waveguide. Operation at a centre wavelength of ~1.5μm with a bandwidth of ISA and transfer efficiency of ~50-70% has been achieved.

Original languageEnglish
Pages (from-to)29-30
Number of pages2
JournalElectronics Letters
Volume31
Issue number1
DOIs
Publication statusPublished - 1995 Jan 5

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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