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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 16,
  • Issue 5,
  • pp. 884-
  • (1998)

Novel Design Procedure of Broad-Band Multilayer Antireflection Coatings for Optical and Optoelectronic Devicesg

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Abstract

A novel design procedure of broad-band multilayer antireflection (AR) coatings for optical and optoelectronic devices is proposed. The design algorithm is based on the optical admittance detuning, with the bandwidth of finite reflectivity as a new merit function. Coating structures consist of only two materials with nonquarter-wave thicknesses. Numerical mappings on the four-layer structure showed four optimizing regions where an optimized four-layer AR coating on 1.55 \mum GaInAs/AlGaInAs MQW semiconductor laser facet was predicted to have a broad bandwidth of 106 nm for a reflectivity of less than 105. TiO2 and SiO2 were electron-beam (EB) evaporated to form the four-layer AR coating on glass and InP substrates with an ion-beam assist and a real time in situ optical thickness monitor and experimentally verify its broad-band performance.

[IEEE ]

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