Incorporation of active materials, such as Neodymiurn(Nd3+) and Erbium(Er3+) in suitable host media has potential applications in lasers and amplifiers. We have fabricated composite planar waveguides on glass substrates doped with Nd3+ and Er3+ ions using the sol-gel process. The composite sol-gel was prepared using polyvinylpyrrolidone (PVP) as the organic part, while Tetraethyl orthosilicate (TEOS) and Titanium(IV) isopropoxide (TPOT) formed the inorganic part. The samples were prism coupled and it was found that they supported single mode at A=633 nm. Gain measurement of the Nd3+ samples have also been carried out.
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