Optical Routing

Low-Loss Optical Interconnection & Routing

Interactive design and simulation of silicon optical routing elements including directional couplers, bends, and tapers. Optimize for minimal insertion loss and crosstalk in high-density photonic integrated circuits.

Interactive Design Parameters

Adjust key design parameters to optimize optical routing performance for your specific application requirements.

0.8 μm
0.22 μm
20 μm
0.2 μm
50 μm
1550 nm
0.8
Insertion Loss (dB)
-45.2
Crosstalk (dB)
50.0
Coupling Ratio (%)
0.05
Bend Loss (dB/90°)

Design Features

Low-Loss Routing

Optimized waveguide design for minimal insertion loss in complex routing networks, enabling efficient optical signal distribution.

Directional Couplers

Precise control of coupling ratio through gap and length optimization for flexible power splitting and combining applications.

Low-Loss Bends

Optimized bend radius design for minimal radiation loss while maintaining compact footprint in high-density PIC layouts.

Mode Adapters

Efficient tapers and mode adapters for seamless integration between different waveguide geometries and device interfaces.

Mathematical Model

The optical routing performance is governed by the following key equations:

Bend Loss Calculation

The bend loss is given by:

$$\alpha_{bend} = \frac{1}{2R} \exp\left(-\frac{2\gamma^3 R}{3\beta^2}\right)$$

Where R is the bend radius, γ is the decay constant, and β is the propagation constant.

Coupling Ratio

The coupling ratio is calculated as:

$$C = \sin^2\left(\frac{\kappa L}{2}\right)$$

Where κ is the coupling coefficient and L is the coupling length.

Insertion Loss

The insertion loss is given by:

$$IL = -10\log_{10}\left(\frac{P_{out}}{P_{in}}\right)$$

Where Pout and Pin are the output and input powers respectively.