Acta Optica Sinica, Volume. 22, Issue 3, 323(2002)

The Equivalent Point Theory of Acousto-Optic Tunable Filter

[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Author Affiliations
  • [in Chinese]
  • show less

    The relation curves of reaction of acoustic and optical wave under the momentum matching condition are presented. It is found that, in the scope of visible and infrared spectrum range, only when the angle between the incident ray and the crystal optical axis is about 56°, there exists a unique acoustic wave vector, which enables two situations [o (the ordinary ray) in e (the extraordinary ray) out and e in o out] to satisfy the parallel tangent momentum matching condition, and the wavelength of two diffraction rays equals each other. This specific angle is labeled as the equivalent point in theoretical design of acousto optic tunable filter (AOTF). This result has been proved through experiments. Applying equivalent point theory in designing AOTF can improve the signal to noise ratio of spectrum measurement significantly without sacrificing any wavelength resolution.

    Tools

    Get Citation

    Copy Citation Text

    [in Chinese], [in Chinese], [in Chinese], [in Chinese]. The Equivalent Point Theory of Acousto-Optic Tunable Filter[J]. Acta Optica Sinica, 2002, 22(3): 323

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Optical Devices

    Received: Dec. 20, 2000

    Accepted: --

    Published Online: Aug. 8, 2006

    The Author Email:

    DOI:

    Topics