| 摘要 |
The purpose of the invention is heavy metal oxide thin films and their application. These thin films will serve to produce doped and undoped planar wave-guides and planar lightwave circuit (PLC) for passive and active optical (amplifier, laser, filter, multiplexer, attenuators and.. .) The thin films present low loss, good chemical and thermal stability and wid e optical transmission window, high solubility of all rare earth ions and transition metals ions... . They can be deposited on different substrates.
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