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MONITORING AND CONTROLLING TEMPERATURE ACROSS A LASER ARRAY IN A TRANSMITTER OPTICAL SUBASSEMBLY (TOSA) PACKAGE

  • US 20160377822A1
  • Filed: 06/04/2014
  • Published: 12/29/2016
  • Est. Priority Date: 06/04/2014
  • Status: Active Grant
First Claim
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1. A method for monitoring and controlling temperature of a laser array in a multi-channel transmitter optical subassembly (TOSA) package, the method comprising:

  • sensing at least first and second temperatures at first and second locations within the TOSA package proximate at least first and second ends of the laser array;

    determining a temperature tilt across the laser array and within the TOSA package, wherein the temperature tilt represents a change in temperature as a function of distance;

    determining, from the temperature tilt, an estimated local temperature at at least a third location along the laser array; and

    adjusting a temperature proximate the third location along the laser array in response to the estimated temperature.

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