Free space optical communication between movable platforms, especially communication with non-cooperative targets, requires detecting low intensity signals in conditions of multiple sources of contaminating signals. In this paper, we review recent achievements in ultra-narrow bandpass filters based on volume Bragg gratings (VBGs) recorded in the bulk of photo-thermo-refractive glass. The new types of transmission filters show unique characteristics such as high throughput and bandwidths as narrow as a few picometers at any wavelength from 500 to 2700 nm. The first filter type is formed by the incoherent combination of a Fabry-Perot etalon and a VBG that enables tunable ultra-narrow band transmission with a single resonance. The filters demonstrate a bandwidth down to a few picometers at 1064 nm, a transmission exceeding 90%, an ultra-broad rejection band (several hundreds of nanometers), and an extinction ratio better than 30 dB. The second filter type is based on multiplexed frequency shifted VBGs that form a volumetric Moiré Bragg grating. The filter provides a single resonance with transmission higher than 90% in the middle of the reflection lobe of the VBG, a bandwidth down to a few picometers and high mechanical stability. Both types of ultra-narrow bandpass filters can be used for many applications requiring to transmit a single frequency and to reject other adjacent frequencies, e.g., in Lidars, or for selection of longitudinal modes in laser resonators. The new filters provide a significant advantage in terms of stability, tunability and achievable throughput for a given bandwidth.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Ultra-narrow bandpass filters based on volume Bragg grating technologies


    Beteiligte:
    Lumeau, Julien (Autor:in) / Smirnov, Vadim (Autor:in) / Glebov, Alexei (Autor:in) / Glebov, Leonid B. (Autor:in)

    Kongress:

    Photonics in the Transportation Industry: Auto to Aerospace III ; 2010 ; Orlando,Florida,United States


    Erschienen in:

    Erscheinungsdatum :

    2010-04-19





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Ultra-narrow bandpass filters based on volume Bragg grating technologies [7675-15]

    Lumeau, J. / Smirnov, V. / Glebov, A. et al. | British Library Conference Proceedings | 2010


    Narrow transmission bandpass filters with use of Bragg grating-assisted mode conversion

    Canning, J. / Moss, D. / Optical Society of America | British Library Conference Proceedings | 1997


    Efficient active Bragg grating tunable filters

    Limberger, H. G. / Nguyen Hong Ky / Costantini, D. M. et al. | British Library Conference Proceedings | 1997



    Narrow-Linewidth Bandpass Filters with Diffractive Thin-Film Layers

    Tibuleac, S. / Magnusson, R. / Optical Society of America | British Library Conference Proceedings | 2002