Reduction of intersymbol interference by matching a voxel lattice constant and a point spread function shadow in optical systems

An optical write system, comprising:

• a write controller, comprising:
• a laser configured to emit a beam having a pulse train, and
• a modulation system comprising modulators configured to modulate the pulses of the pulse train to encode data in each pulse of the pulse train;
• an optical write head, comprising:
• optical components including one or more lenses;
• and
• a scanning system configured to use the optical components to direct the beam having the modulated pulses in the pulse train at an optical storage medium to write the data into the optical storage medium,
• wherein the optical components are configured to:
• write the data into voxels in a voxel lattice having a voxel lattice constant representing a distance between neighboring voxels in a layer of the optical storage medium, and
• match the voxel lattice constant with a shadow of a point spread function of a laser read system.

A method, comprising:

• encoding, by an optical write drive, data into each pulse of a pulse train emitted from a femtosecond laser;
• writing, by the optical write drive, the data into voxels in an optical storage medium, wherein the voxels are written into a voxel lattice having a voxel lattice constant representing a distance between neighboring voxels in a layer of the optical storage medium;
• adjusting, by an optical read drive, optical components of the optical read drive to match a shadow of a point spread function with the voxel lattice constant;
• and
• reading, by the optical read drive, the voxels from the optical storage medium after adjusting the optical components.