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We report on non-lithographic laser direct writing fabrication of optical waveguides by using a 4′-hydroxy-4-nitroazobene dye-functionalized polymer film. The polymer film reveals permanent change of refractive index at high laser illumination intensity. A focused continuous wave low power green laser beam at 532nm wavelength is used to directly write waveguide structures on the polymer film. The...
Conventional optical waveguide fabrication by lithographic techniques can result in waveguide devices that cannot be repaired or corrected after the fabrication process. Especially when encountering error due to imperfect fabrication, a time consuming costly error correction re-fabrication would be required. We report on the non-lithographic laser writing fabrication of polymer waveguide on a newly...
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