CPC H01S 5/0428 (2013.01) [H01S 5/0265 (2013.01); H01S 5/06255 (2013.01); H04B 10/504 (2013.01); H04B 10/541 (2013.01); H04B 10/564 (2013.01); H01S 5/02453 (2013.01); H04B 10/27 (2013.01)] | 20 Claims |
1. A method comprising:
receiving, at a laser driving circuit, a burst mode signal indicative of a burst-on state or a burst-off state;
when the burst mode signal is indicative of the burst-on state:
delivering, by the laser driving circuit, a first bias current to an anode of a gain-section diode disposed on a shared substrate of a tunable laser, the tunable laser comprising an Electro-absorption Modulated tunable laser; and
delivering, by the laser driving circuit, a second bias current to an anode of a phase-section diode disposed on the shared substrate of the tunable laser, wherein the second bias current is less than the first bias current; and
when the burst mode signal transitions to be indicative of the burst-off state from the burst-on state:
delivering, by the laser driving circuit, the first bias current to the anode of the gain-section diode; and
delivering, by the laser driving circuit, the second bias current to the anode of the phase-section diode, wherein the first bias current is less than the second bias current,
wherein:
the first bias current is equal to a tail current minus the second bias current; and
the second bias current is equal to the tail current minus the first bias current.
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