In photon-echo-based optical data storage and data processing the photon echo output intensity generally is about 0.1 - 1% of the input intensity. Many devices, such as processors would require that the photon echo output is used as an input to a new photon echo process. To obtain a sufficient signal-to- noise it would be necessary to first amplify the photon echo output signal. In this paper Pr-doped ZBLAN fibers are used to amplify the photon echo signals generated in Pr-doped Y2SiO5 at 606 nm. The fiber amplifier is pumped by the 476 nm output from an Ar-ion laser. Mirror-less lasing due to reflection at the fiber ends is eliminated by cleaving the fiber ends at an angle. The upper limit of the gain in a fiber is set by the core refractive index and the fiber numerical aperture. By changing from a fiber with numerical aperture of 0.4 to one with 0.15, the gain obtained at 606 nm is increased from 45 to 330.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Amplification of photon echo signals for photon-echo-based optical storage and optical processing devices


    Contributors:

    Conference:

    Advanced Optical Memories and Interfaces to Computer Storage ; 1998 ; San Diego,CA,USA


    Published in:

    Publication date :

    1998-11-05





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Time-domain optical data storage by photon echo

    Mitsunaga, M. | British Library Online Contents | 1992



    Multidimensional photon echo optical processing (Invited Paper) [3804-03]

    Wagner, K. H. / Anderson, K. / SPIE | British Library Conference Proceedings | 1999


    Optical Data Storage Based on the Long-Lived Photon Echo

    IEEE; Lasers and Electro-Optics Society / Optical Society of America / SPIE- The International Society for Optical Engineering | British Library Conference Proceedings | 1997


    Information locking in optical memory devices based on photon echo [3239-55]

    Kalachev, A. A. / Samartsev, V. V. / Nefediev, L. A. et al. | British Library Conference Proceedings | 1997