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    • 5. 发明授权
    • Optical wavelength tunable filter
    • 光波长可调滤波器
    • US06744941B2
    • 2004-06-01
    • US10414157
    • 2003-04-16
    • Sabry KhalfallahJoel Jacquet
    • Sabry KhalfallahJoel Jacquet
    • G02B612
    • G02B6/29358G02B5/20G02B6/29395
    • The wavelength tunable optical filter (1) comprises a resonant cavity (4) delimited by two opposite reflective elements (8, 8′) which are not wavelength selective, and a reflector (7) external to the cavity (4). The external reflector (7) exhibits transmission peaks for an integer number N of optical frequencies and the Fabry-Perot cavity (4) delimiting a phase tuning section (11) is sized so that the distance between the optical frequencies of any two resonant modes of the cavity (4) is never equal to the difference between the optical frequencies of any two transmission peaks of the external reflector (7).
    • 波长可调谐滤光器(1)包括由不具有波长选择性的两个相对的反射元件(8,8')界定的谐振腔(4)和在空腔(4)外部的反射器(7)。外部反射器 (7)表现出整数N个光学频率的传输峰值,限定相位调谐部分(11)的法布里 - 珀罗腔(4)的尺寸设定为使得空腔的任何两个谐振模式的光频率 4)不等于外部反射器(7)的任何两个透射峰值的光学频率之间的差异。