A tunable Y-branch Ni:LiNbO/sub 3/ polarization (mode) splitter with a ridged input arm is presented. The ridge is used to lower the tuning voltage and thus enhance the tuning flexibility of the polarized fields. To improve the confinement of Ni-indiffused waveguide, Zn and Ni are both diffused at the same time. To use the electro-optic modulation, the polarization splitter is implemented in a Z-cut Y-propagating LiNbO/sub 3/. Experimental results show that the tuning voltage can be reduced by a factor of about 1/3 with a ridge of height 2 /spl mu/m. The measured extinction ratio is 21 dB for the transverse electric (TE) mode and 18 dB for the transverse magnetic (TM) mode.


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    Titel :

    Novel optical polarization splitter in lithium niobate


    Beteiligte:
    Ko-Chun Lin, (Autor:in) / Wen-Hao Hsu, (Autor:in) / Way-Seen Wang, (Autor:in)


    Erscheinungsdatum :

    01.01.2003


    Format / Umfang :

    327807 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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