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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of infrared and millimeter waves 21 (2000), S. 939-944 
    ISSN: 1572-9559
    Keywords: fiber Bragg gratings ; acoustic wave ; filter ; WDM technology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract There are multiple passbands in a chirped Bragg grating based on acousto-optic superlattice. The structure can be regarded as an acousto-induced super Moiré grating (AI-SMG). The analysis shows that the passbands of the AI-SMG are produced by several pairs of neighboring chirped gratings. With suitable structure parameters selected, the passbands can be non-larenzian-shape, narrow flat-top, with ripple less than 0.5dB and steep slope. The devices can be used as tunable narrow-band multichannel transmission filters. This analysis is useful for the designs and applications of the devices.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of infrared and millimeter waves 21 (2000), S. 1313-1319 
    ISSN: 1572-9559
    Keywords: fiber Bragg gratings ; filter ; multichannel filter ; WDM
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In this paper, super Moiré grating (SMG) with multiple superimposed gratings, in the best of our knowledge, is studied at first time. A flat multichannel transmission filter based on a chirped SMG with three superimposed gratings can be achieved, which benefits wavelength-division multiplexing (WDM) system. At the same time, a reflection filter can also be obtained in a chirped SMG, which can be used as an optical add/drop multiplexer filter for WDM system.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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