Abstract

A simple all-optical switch based on photoinduced birefringence effect is demonstrated in azo dye (DR1) doped polymer (PMMA) thin films. The all-optical switching effect has been studied at different control beam power and different temperatures of the sample. With a control power of 30.7 mW and at 56 ?, the response time of the switching is less than 5 ms, and the depth of the modulation reaches 80%.

© 2005 Chinese Optics Letters

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