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Embedded parametric monitoring of optoelectronic modules

  • US 8,186,891 B2
  • Filed: 05/08/2009
  • Issued: 05/29/2012
  • Est. Priority Date: 08/04/2006
  • Status: Active Grant
First Claim
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1. In an optical transmitter for converting and coupling an information-containing electrical signal with an optical fiber comprising:

  • a housing including an electrical input for coupling with an external electrical cable or information system device and for transmitting information-containing electrical signals over said input, and a fiber optical connector adapted for coupling with an external optic fiber for transmitting an optical signal;

    an electro-optic subassembly disposed in said housing coupled to the information containing electrical signal and converting it to a modulated optical signal corresponding to the electrical signal at a predetermined wavelength;

    a method comprising;

    acquiring, at a sequence of time intervals, operational data associated with the transmitter to store said operational data acquired during said sequence of time intervals in a non-volatile memory disposed in said housing;

    tracking and storing an elapsed time while the transmitter is operational;

    accessing said non-volatile memory to determine the stored operational data; and

    during at least one of maintenance and diagnostics, overriding default behaviors established for tracking and storing the elapsed time.

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