Effects of dead zones in multiple-quantum-well binary-phase modulators on optical interconnections

Area of Science:

• Optics and Photonics
• Optical Engineering
• Spatial Light Modulation

Background:

• Pixelated spatial light modulators (SLMs) are crucial for optical interconnections.
• Inactive regions, termed dead zones (DZs), can impact SLM performance.
• The effects of DZs in SLMs beyond optical correlation are not well-understood.

Purpose of the Study:

• To investigate the impact of dead zones (DZs) in multiple-quantum-well binary-phase modulators.
• To analyze how DZs affect light efficiency and fidelity in free-space optical interconnections.
• To explore the potential of exploiting DZs in system design for improved performance.

Main Methods:

• Simulating SLMs with varying fractional dead zone widths.
• Calculating light efficiency and fidelity metrics.
• Analyzing the influence of opaque and transmissive DZ models.

Main Results:

• Dead zones can be strategically utilized in SLM design.
• Optimizing DZ width can enhance optical interconnection performance.
• Improved cross-talk performance is achievable with appropriate DZ selection.

Conclusions:

• Dead zones in SLMs are not merely defects but can be engineered features.
• Strategic design incorporating dead zones can lead to superior optical interconnection systems.
• This research offers valuable insights for the development of advanced SLM technologies.