Highly asymmetrical vertical coupler wavelengthfilter in InGaAlAs/InP

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

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


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
Issue number1
Publication statusPublished - 1995 Jan 5

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


Dive into the research topics of 'Highly asymmetrical vertical coupler wavelengthfilter in InGaAlAs/InP'. Together they form a unique fingerprint.

Cite this