Patents by Inventor Stephen W. Arleth

Stephen W. Arleth has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for setting gain and tilt in spectral performance of fiber amplifiers
    Publication number: 20030086153
    Abstract: An apparatus for sensing changes, e.g. transient changes in the input or output signal spectrum of an optical amplifier, typically an EDFA, uses only a pair of spectrally banded photodiodes to equalize the transient behaviour of the amplifier. The photodiodes provide a control signal which is either sum or difference of signals generated by the photodiodes, that is used in the control of the optical amplifier in a feedback or feed-forward mode in order to counterbalance the effects of changes in the spectral content of the input (or output) signal of the optical amplifier.
    Type: Application
    Filed: November 1, 2002
    Publication date: May 8, 2003
    Applicant: JDS Uniphase Corporation
    Inventors: Idan Mandelbaum, Martin Achtenhagen, Donald R. Zimmerman, Stephen W. Arleth, Kao Yang Huang