The polarization isolation of birefringent fiber half-couplers is locally observed and characterized when the device is submitted to the various steps of its fabrication. After stripping and aligning the fiber, the polarization is not affected. The mode coupling rises to the order of -40 dB after cementing and -20 dB after polishing. When the substrate is released from the jig, the set relaxes and the polarization isolation is increased to -25 dB. In addition to readily detect failure and degeneration, this procedure, joined to a geometric parameter control of the polishing step, allow a fast and precise technique to get final directional couplers with up to 25 dB of polarization isolation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Polarization isolation follow-up on the fabrication process of birefringent fiber half-couplers


    Contributors:


    Publication date :

    1999-01-01


    Size :

    203871 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Birefringent Splittable Composite (BISPEC) Fiber and Polarization-Maintaining Couplers

    Peng, G. D. / Ye, A. L. / Chu, P. L. | British Library Online Contents | 1995



    Wavelength and Polarization Dependences of Fused Fiber Couplers

    Morishita, K. / Yamazaki, K. | British Library Online Contents | 2011


    Wavelength and Polarization Dependences of Fused Fiber Couplers

    Morishita, K. / Yamazaki, K. | British Library Online Contents | 2010