Design of microprism-type symmetric Y-junction waveguides with the full phase compensation method

Area of Science:

• Optics and Photonics
• Waveguide Technology
• Integrated Photonics

Background:

• Y junctions are fundamental components in photonic integrated circuits.
• Traditional Y junction designs suffer from significant signal loss.
• Precise phase control is crucial for efficient light splitting.

Purpose of the Study:

• To design a novel three-dimensional (3D) microprism-type Y junction.
• To improve the efficiency and reduce signal loss in Y junctions.
• To provide precise phase compensation formulas for Y junction design.

Main Methods:

• Derivation of precise phase compensation formulas using the full phase compensation method.
• Design of a three-dimensional microprism-type Y junction structure.
• Simulation and comparison with traditional Y junction designs.
• Estimation of branching losses using the orthogonality principle.

Main Results:

• The proposed 3D microprism-type Y junction design demonstrates superior performance over traditional structures.
• Simulated results confirm the effectiveness of the derived phase compensation formulas.
• Branching losses were reduced by approximately 6-10% compared to traditional designs.
• The orthogonality principle accurately estimated the improved branching losses.

Conclusions:

• The full phase compensation method enables precise design of 3D microprism Y junctions.
• The proposed Y junction structure offers significant improvements in optical performance.
• This advancement is crucial for developing more efficient photonic integrated circuits.