Direct modulated laser
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United States of America Patent
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Jan 20, 2015
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N/A
app pub date -
Nov 1, 2011
filing date -
Nov 1, 2011
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Abstract
A laser system can include an electrode to transmit electrical carriers into an active region in response to first electrical stimulation. The laser system can also include another electrode to transmit electrical carriers into the active region in response to second electrical stimulation. The electrical carriers can be combined in the active region to emit photons to generate an optical signal. The system can further include yet another electrode responsive to electrical stimulation to affect a concentration of electrical carriers in a device layer to change a capacitance of an internal capacitance region associated with at least one of first and second waveguide regions and the device layer. The third electrical stimulation can be modulated to modulate the optical signal based on the change to the capacitance of the internal capacitance region.
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