Your browser doesn't support javascript.
loading
Direct-current bias stable Ti:LiNbO(3) TE-TM mode converters produced by magnesium postdiffusion.
Opt Lett ; 12(7): 531-3, 1987 Jul 01.
Article em En | MEDLINE | ID: mdl-19741788
Depression of the surface index of Ti:LiNbO(3) channel waveguides by secondary diffusion of MgO forms a buffer layer that optically isolates the guided modes from attenuation caused by electrodes placed over the guides. For x-cut, z-propagating mode-conversion devices, we find high stability to optical drift when a dc voltage as high as 60 V is applied to electrodes (typical gap of 5 microm) to establish bias operating points. Photoconductivity is found to limit the long-term stability. Devices operating at 0.633-microm wavelength generally suffer significant drift in their mode-conversion efficiency when 100 microW or more of throughput power is present and a bias of 14 V is used. 10-microW throughput at the same wavelength is found to be stable over an 8-h period. At 0.8-microm wavelength, bias voltages as high as 60 V may be used for stable operation even at 100-microW optical throughput.
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Opt Lett Ano de publicação: 1987 Tipo de documento: Article País de publicação: Estados Unidos
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Opt Lett Ano de publicação: 1987 Tipo de documento: Article País de publicação: Estados Unidos