Design of linear-phase two-port optical interleavers using lattice architectures

Area of Science:

• Photonics and Optical Engineering
• Integrated Optics

Background:

• Optical interleavers are crucial components in wavelength-division multiplexing (WDM) systems.
• Achieving exact linear-phase characteristics in optical interleavers is essential for signal integrity.

Purpose of the Study:

• To introduce a novel lattice structure for designing two-port optical interleavers.
• To guarantee exact linear-phase characteristics for both outputs of the interleavers.
• To demonstrate the robustness of the design against parameter variations.

Main Methods:

• A novel lattice structure is proposed for optical interleaver design.
• An optimization algorithm is employed to determine design parameters for desired spectral characteristics.
• Simulations are conducted to verify the performance and robustness of the proposed structure.

Main Results:

• The proposed lattice structure guarantees exact linear-phase characteristics for the two outputs.
• The design achieves desired spectral characteristics through optimized parameters.
• Linear-phase characteristics remain stable even with variations in design parameters.

Conclusions:

• The novel lattice structure provides an effective solution for designing high-performance two-port optical interleavers.
• The design scheme ensures reliable operation with guaranteed linear-phase outputs.
• Simulation results confirm the practical effectiveness of the proposed structure and design approach.