Tasks
The 16 Design and 10 Reimplementation tasks from the paper, from single components to full electrothermal circuits, each shown with its best final layout. The RF preview tasks (HFSS-evaluated waveguide filters and antennas) come last; they are not part of the paper's leaderboard yet.
WDM-v1
Four-Channel Electrothermal Dual-Ring WDM Channelizer
Design a four-channel dual-ring WDM channelizer near 1310 nm with eight independently contacted heaters and trusted electrothermal scoring.
- Mean S
- 0.33
- Valid
- 7 / 11
WDM-v2
Eight-Channel Electrothermal Dual-Ring WDM Channelizer
Design an eight-channel dual-ring WDM channelizer near 1310 nm with 16 independently heated rings and trusted electrothermal scoring.
- Mean S
- 0.17
- Valid
- 5 / 11
Microresonator-v1
Single-Ring O-Band Microresonator Modulator
Design a single-ring O-band microresonator modulator for 100 Gb/s operation with coupled optical, RF, electrical, and thermal verification.
- Mean S
- 0.53
- Valid
- 9 / 11
Microresonator-v2
Five-Channel C-Band WDM-PAM4 Microresonator Modulator
Design a five-channel C-band WDM-PAM4 microresonator modulator array with two-segment junctions, independent heaters, and trusted optical, RF, electrical, and thermal verification.
- Mean S
- 0.31
- Valid
- 6 / 11
MZI-v1
Broadband 4x4 Rectangular MZI Mesh
Design a broadband 4×4 rectangular MZI mesh with independently controlled interferometers and trusted optical, electrical, and thermal verification.
- Mean S
- 0.30
- Valid
- 6 / 11
MZI-v2
Broadband 6x6 Rectangular MZI Mesh
Design a broadband 6×6 rectangular MZI mesh with 36 quantized controls and trusted optical, electrical, and electrothermal verification.
- Mean S
- 0.23
- Valid
- 5 / 11
MZI-Ring-v1
MZI-Coupled Microring Add-Drop Filter Electrothermal Design
Design a compact four-port MZI-coupled microring add-drop filter with independent theta and phi heaters, trusted electrothermal tuning, and evaluator-owned optical scoring.
- Mean S
- 0.22
- Valid
- 8 / 11
MZI-Ring-v2
MZI-coupled microring add-drop filter electrothermal design v2
Design a fifth-order four-port Vernier microring add-drop filter with two physical bus MZIs, seven heaters, two fixed VOAs, and trusted local electrothermal and optical scoring.
- Mean S
- 0.005
- Valid
- 5 / 11
Quantum-4
Four-Mode Quantum Projector Electrothermal Design
Design a four-mode quantum projector with a 4×4 interferometer network, electrothermal phase control, and trusted fidelity scoring.
- Mean S
- 0.37
- Valid
- 9 / 11
Quantum-8
Eight-Mode Quantum Projector Electrothermal Design
Design an eight-mode quantum projector with a tree of seven MZIs, 15 electrothermal phase controls, and trusted fidelity scoring.
- Mean S
- 0.13
- Valid
- 5 / 11
MZI-Spec-8
Compact PDK-Physical Eight-Delay Sparse-Spectrum MZI Spectrometer
Design a compact eight-delay MZI spectrometer with physical SiEPIC couplers, a routed 1x8 splitter tree, 16 grating outputs, and trusted sparse-spectrum reconstruction scoring.
- Mean S
- 0.47
- Valid
- 11 / 11
RAFT-Spec
Microring-Assisted Fourier Spectrometer Electrothermal Design
Design a microring-assisted Fourier spectrometer with a smooth add-drop resonator, thermally scanned MZI, physical heater routing, and trusted robust sparse-spectrum reconstruction scoring.
- Mean S
- 0.31
- Valid
- 8 / 11
Ring-XC-v1
Four-Wavelength Two-Port Ring Selective Cross-Connect
Design a four-wavelength, two-input, two-output ring-selective cross-connect with independently compiled wavelength routes and trusted optical, electrical, thermal, DRC, and LVS verification.
- Mean S
- 0.10
- Valid
- 3 / 11
Ring-XC-v2
Four-Wavelength Four-Port Ring Selective Cross-Connect
Design a four-wavelength, four-input, four-output blocking-aware ring-selective cross-connect with independently compiled wavelength routes and trusted optical, electrical, thermal, DRC, and LVS verification.
- Mean S
- 0.04
- Valid
- 1 / 11
Serial MZI-v1
Serial Dual-Ring-Assisted MZI Elliptic Bandpass Electrothermal Design v1
Design a serial dual-ring-assisted MZI elliptic bandpass filter with five tunable couplers, three electrothermal phase controls, and trusted optical, electrical, thermal, DRC, and circuit verification.
- Mean S
- 0.06
- Valid
- 7 / 11

90SiN Bend-v0
90 Degree SiN Waveguide Bend Design
Design a low-loss 90-degree silicon-nitride waveguide bend at 1550 nm with a fixed Tidy3D setup, trusted cloud evaluation, and geometry DRC.
- Mean S
- 0.66
- Valid
- 11 / 11
Anisotropic SWG-v0
Anisotropic SWG 2 x 2 Beamsplitter Implementation/Optimization
Implement and optimize an anisotropic subwavelength-grating 2 × 2 MMI beamsplitter over 1250–1750 nm. One input is simulated; strict y-mirror symmetry establishes the second input response.
- Mean S
- 0.54
- Valid
- 11 / 11
α-Si/Si₃N₄ Grating-v0
α-Si/Si3N4 SWG Grating Coupler Implementation/Optimization
Implement and optimize the apodized α-Si/Si₃N₄ SWG grating at 1310 nm. Trusted FDTD measures coupling loss and both bandwidths against the paper-derived reference envelope.
- Mean S
- 0.24
- Valid
- 11 / 11
Dual-Trident SWG-v0
Dual-Trident SWG Edge Coupler Implementation/Optimization
Implement and optimize a silicon dual-trident subwavelength-grating edge coupler over 1536–1628 nm. The trusted evaluator measures Gaussian-beam coupling into the output waveguide's fundamental TE mode.
- Mean S
- 0.29
- Valid
- 11 / 11
HMDM polarization splitter–rotator
HMDM Polarization Splitter–Rotator Implementation/Optimization
Optimize the paper-derived polarization splitter–rotator's independently selectable nanohole sites. The trusted evaluator measures desired-mode transmission for TE₀ and TM₀ inputs across 1500–1600 nm.
- Mean S
- 0.10
- Valid
- 11 / 11
HMDM six-channel WDM
HMDM Six-Channel WDM Binary Optimization
Optimize a six-channel WDM nanohole mask with independently selectable sites across the paper-derived design region. The trusted evaluator measures worst-channel insertion loss and crosstalk against the paper envelope.
- Mean S
- 0.20
- Valid
- 11 / 11
Sb₂Se₃/Si Rotator-v0
Sb2Se3/Si Reconfigurable Polarization Rotator Implementation/Optimization
Implement and optimize a reconfigurable Sb₂Se₃/Si polarization rotator. The trusted evaluator scores worst-case polarization-conversion loss over both material states and 1290–1330 nm.
- Mean S
- 0.50
- Valid
- 11 / 11
SRSN Grating-v0
SRSN Grating Coupler Implementation/Optimization
Implement and optimize a silicon-rich silicon nitride grating above a thin SiN waveguide for vertical fiber-to-chip coupling at 1550 nm. Compare evaluator-owned coupling loss with the paper’s 3D-FDTD baseline.
- Mean S
- 0.54
- Valid
- 11 / 11
TFLN Crossing-v0
Three-Direction TFLN MMI Crossing Implementation/Optimization
Implement and optimize symmetric and asymmetric thin-film lithium-niobate MMI crossings at 1550 nm. Three independent crystal-direction subruns measure worst-direction insertion loss and enforce crosstalk and field-decay gates.
- Mean S
- 0.23
- Valid
- 11 / 11
TFLN PI-MMI-v0
Polarization-Insensitive TFLN 1x2 MMI Implementation/Optimization
Implement and optimize a polarization-insensitive TFLN 1 × 2 MMI. The trusted evaluator measures worst-output excess loss for TE and TM across 1520–1580 nm.
- Mean S
- 0.28
- Valid
- 11 / 11
Trapezoidal SWG-v0
Trapezoidal SWG 2 x 2 3-dB Coupler Implementation/Optimization
Implement and optimize a trapezoidal subwavelength-grating 2 × 2 coupler. Compare both physical input responses over 1400–1700 nm against the paper’s splitting and excess-loss envelope.
- Mean S
- 0.31
- Valid
- 11 / 11
Ku-band Filter-v2
Ku-band waveguide filter design
Design a compact, all-metal Ku-band waveguide filter with a 11.925–12.075 GHz service band and rejection over 10.5–11.25 and 12.5–15 GHz. Trusted Ansys HFSS simulations measure performance and enclosure volume.
- Best S
- 0.73
Dual-band Filter-v0
Dual-band waveguide filter design
Design a compact, all-metal waveguide filter with two 150 MHz service bands at 11.925–12.075 and 13.925–14.075 GHz. Rejection is evaluated over 10.5–11.3, 12.5–13.5 and 14.5–15 GHz. Trusted Ansys HFSS simulations measure both bands and the shaped enclosure volume.
- Best S
- 0.62
Compact Antenna v1
Compact antenna design
Design a compact single-feed all-metal waveguide antenna for 25.5–27 GHz with a fixed WR-34 input and a 4 × 4.318 mm radiating aperture. Choose the post-collar geometry and optimize outer volume, matching and forward co-polar realized gain using trusted HFSS measurements.
- Best S
- 0.62
Filtena v1
Compact waveguide filtenna design
Design a compact filtering radiator for 25.5–27 GHz, balancing forward co-polar realized gain, input matching, stopband rejection, shaped enclosure volume and total length. A fixed WR-34 input assembly feeds a body with a fixed nominal channel width and terminal aperture; the learner optimizes its length and permissible internal geometry.
- Best S
- 0.55