Direct laser writing of electro-optic waveguide in chromophore-doped hybrid sol–gel

Hong Xi Zhang; Dong Lu; Tao Liu; Mansuripur, Masud; Fallahi, Mahmoud
November 2004
Applied Physics Letters;11/8/2004, Vol. 85 Issue 19, p4275
Academic Journal
To overcome the influence of chromophore absorption and degradation in the ultraviolet spectral range for direct photopatterning of electro-optic devices, a blue laser writing technique operating at 405 nm has been used to fabricate electro-optic waveguides from side-chain disperse red-1 doped photosensitive hybrid sol–gel films. The waveguide has good optical confinement and shows an electro-optic coefficient of about 9.0±0.4 pm/V and high temporal stability. The results indicate that the hybrid sol–gel a promising matrix for chromophores, and this technique can find applications in direct patterning of electro-optic devices from nonlinear chromophores-doped photosensitive materials including sol–gels and polymers.


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