Self-adjusted automatic bias control of an electro-absorption modulator
AssigneeARRIS Enterprises LLC
InventorJun Wang
Life of this patent
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Abstract
An electro-absorption modulator (EAM) configured to receive light and output a modulated optical signal. The EAM may include a current source used to set a predetermined modulation performance and an output power of the EAM. The current source is set to provide a constant current and constant bias for the electro-absorption modulator, where the EAM automatically self-adjusts to detuning changes between the EAM and the optical light source to maintain a predetermined modulation performance and output power of the EAM.
Claims10
An electro-absorption modulator (EAM) configured to receive light and output a modulated optical signal, the EAM comprising:
- a current source used to set a predetermined modulation performance and an output power of the EAM, the current source set to provide a constant current output, and provide a bias for the electro-absorption modulator;
- where
- the EAM automatically self-adjusts to detuning changes between the EAM and an optical light source to maintain a predetermined modulation performance and output power of the EAM, and in a manner free from monitoring an output signal of the EAM;
- and where
- the EAM includes a terminating resistor connected in parallel with the EAM and not in parallel with the optical light source.
Dependencies are inferred from the claim text.