Comb laser arrays for dwdm interconnects
AssigneeHewlett Packard Enterprise Development LP
InventorsMir Ashkan Seyedi, Marco Fiorentino, Geza Kurczveil, Raymond G. Raymond
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Abstract
A photonic integrated circuit package includes two arrays or sets of integrated comb laser modules that are bonded to a silicon interposer. Each comb laser of an array has a common or overlapping spectral range, with each laser in the array being optically coupled to a local optical bus. The effective spectral range of the lasers in each array are different, or distinct, as to each array. An optical coupler is disposed within the silicon interposer and is optically coupled to each of the local optical buses. An ASIC (application specific integrated circuit) is bonded to the silicon interposer and provides control and operation of the comb laser modules.
Claims20
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A method for controlling a first and second array of comb laser modules disposed on a silicon interposer, the method comprising:
- providing power to a first comb laser module in the first array of comb laser modules, the comb laser modules of the first array having a common spectral output range;
- providing power to a first comb laser module in a second array of comb laser modules, the comb laser modules of the second array having a common spectral output range;
- determining a switch over event for the first array;
- and
- upon determining a switch over event, switching over operation of the first comb laser module in the first array to operation of a second comb laser module in the first array.
Dependencies are inferred from the claim text.