Construction of the refractive index profiles for few-mode planar optical waveguides
β Scribed by Haidong Zhu; Zhuangqi Cao; Qishun Shen
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 401 KB
- Volume
- 260
- Category
- Article
- ISSN
- 0030-4018
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## Abstract A method is presented whereby the refractiveβindex profile (RIP) can be reconstructed from sets of effective indexes measured with different mode types and external refractive indexes. Singleβmode waveguide RIP characterization can be easily realized using an indexβmatching liquid at a
The planar waveguides have been fabricated in z-cut beta barium metaborate crystals by 2.8 MeV Si + ion implantation with doses of 1 β’ 10 15 and 3 β’ 10 15 ions/cm 2 at room temperature. The waveguides were characterized by the prism-coupling method. The refractive index profiles were reconstructed u