Single parameter gain slope adjuster for an optical system

    公开(公告)号:US06611371B2

    公开(公告)日:2003-08-26

    申请号:US09809882

    申请日:2001-03-16

    IPC分类号: H04B1012

    CPC分类号: H04B10/2941

    摘要: An optical device including an optical amplifier to amplify optical signals received through an optical input, and to supply the amplified optical signals from an optical output, and an optical filter coupled to the optical amplifier. The optical filter changes the gain slope of the optical amplifier in response to a change in a single parameter of the optical filter. The single parameter may be a change in a central wavelength of the optical filter function. The optical filter preferably has a parabolic spectral function. The single parameter may be varied as a function of temperature such that the variable optical attenuator compensates for variations in the gain spectrum of the optical amplifier that occur as a function of operating temperature.

    Single parameter gain slope adjuster for an optical system

    公开(公告)号:US06646789B2

    公开(公告)日:2003-11-11

    申请号:US10080756

    申请日:2002-02-22

    IPC分类号: H04B1012

    CPC分类号: H04B10/2941

    摘要: An optical device comprises an optical amplifier to amplify optical signals, optical pumps coupled to and providing optical pump power to least one amplifying stage of the optical amplifier, so as to produce gain in the said optical amplifier and, a tunable optical filter coupled to the optical amplifier. The optical filter changes the gain slope of the optical amplifier in response to a change in a single parameter of the optical filter. The optical amplifier also includes at least one controller adjusting said single parameter of the optical filter and controlling the optical pumps.