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Design a ring resonator filter at 1550nm with Q-factor > 10,000

Creating ring resonator with optimized parameters:

• Radius: 10 μm
• Gap: 200 nm
• Q-factor: 12,500
• FSR: 9.8 nm

ring_resonator.gds

Light coupled into ring resonator

Design Generation

Component Types

Platforms Supported

WASM Speedup

Visual Design Canvas

Design Like a Professional

Drag-and-drop photonic components, connect ports with smart routing, and watch light flow through your design in real-time

Select

Pan

Connect

Snap to Grid

Components

○Ring Resonator

⫸MMI 1×2

⫿Grating Coupler

↪Euler Bend

╪Directional Coupler

◇MZI

━Waveguide

Properties

Ring Resonator

Radius10 μm

Gap200 nm

Width500 nm

Q-factor~12,500

FSR9.8 nm

Smart Routing

Auto-connect ports with optimal waveguide paths and bend radii

Live Light Flow

Watch photons propagate through your circuit in real-time

Port Snapping

Precise alignment with automatic port detection

Physics Preview

See Q-factor, FSR, and loss as you design

Physics-Based Simulation

Validate Before You Fabricate

Multiple simulation engines for complete design validation - from S-parameters to full FDTD

S-Parameter AnalysisLive

1500-1600nm

Insertion Loss

-0.8 dB

Extinction

25 dB

Mode SolverTE Mode

500nm × 220nm

n_eff

2.44

Mode Area

0.12 μm²

Ring ResonatorFDTD

Q-factor

12,500

FSR

9.8 nm

S-Parameter Sweep

Full wavelength-dependent transmission analysis

Mode Solving

Calculate guided modes and effective indices

Loss Budget

Propagation, bending, and coupling losses

Inverse Design

AI-optimized layouts via adjoint method

Code Generation & Export

From Canvas to Fabrication

Export production-ready GDS-II files or generate Python code - your design, your workflow

Python Code

gdsfactory

# Auto-generated from WaveCAD canvas

import gdsfactory as gf

@gf.cell

def mzi_ring_filter():

c = gf.Component()

# Grating couplers for fiber I/O

gc_in = c << gf.components.grating_coupler_elliptical(

taper_length=16.6, wavelength=1.55)

# Ring resonator filter

ring = c << gf.components.ring_single(

radius=10, gap=0.2, length_x=4)

# MMI 1x2 splitter

mmi = c << gf.components.mmi1x2(

width_mmi=2.5, length_mmi=5.5)

# Connect with Euler bends

gf.routing.route_single(c, gc_in.ports["o1"], ring.ports["o1"])

return c

Bidirectional sync: Code ↔ Canvas

GDS-II Export

DRC Passed

mzi_ring_filter.gds

Filemzi_ring_filter.gds

Components5 (Ring, 2×GC, 2×WG)

LayersWG (1/0), SLAB (2/0)

Min feature200 nm

DRC Status All 12 rules passed

Supported Platforms

Design for multiple photonic platforms with optimized parameters

Silicon (SOI)

Silicon Nitride (SiN)

Lithium Niobate (LN)

AI Design Assistant

Dr. Photon

Your AI assistant that understands photonics. Ask it to design circuits, calculate physics, optimize parameters, or explain concepts.

You

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