US 2024/0405908 A1 · TECHNIQUES FOR EFFICIENT TUNING OF MICRO-RING MODULATORS FOR WAVELENGTH DIVISION MULTIPLEXING

Abstract

Techniques for efficiently tuning of optical resonant devices (e.g., micro-ring modulators (MRM) or add/drop filters) are described. The techniques described herein can be used in photonic communication systems that transmit data using several wavelengths of light sharing a common optical waveguide or a common fiber, e.g., wavelength division multiplexing (WDM) systems. These techniques may involve varying the way in which resonant wavelengths are mapped to the wavelengths of emission until it is determined that the power consumption is appropriate (e.g., below a certain threshold value). This significantly reduces the amount of power needed to ensure proper alignment between wavelength of emission and resonant wavelengths.

Claims20

Dependent claims

A method for controlling a plurality of optical resonant devices coupled to a light source configured to emit light at a plurality of wavelengths, the method comprising:

applying a first biasing condition to the optical resonant devices resulting in each optical resonant device being aligned to a respective wavelength of the plurality of wavelengths in accordance with a first mapping;
sensing an amount of power used in applying the first biasing condition;
and
if it is determined that the amount of power used in applying the first biasing condition is excessive, applying a second biasing condition to the optical resonant devices resulting in each optical resonant device being aligned to a respective wavelength of the plurality of wavelengths in accordance with a second mapping.

1 more element

Dependencies are inferred from the claim text.

Techniques for efficient tuning of micro-ring modulators for wavelength division multiplexing

Life of this patent

Techniques for efficient tuning of micro-ring modulators for wavelength division multiplexing

Life of this patent

Abstract

Claims20