TFLN Modulator Technical Specifications

Platform Overview

Technology Platform: AN350 – 350nm thick Silicon Nitride (SiN) layer 

Wafer Size: 200mm industrial platform 

Architecture: SiN-loaded waveguides with Thin-Film Lithium Niobate (TFLN) overlay

 

Optical Performance

Platform Specifications

  • Optical Loss: < 0.5 dB/m (SiN waveguides)
  • Resonator Q Factor: > 20 million
  • On-chip Modulator Loss: < 0.7 dB
  • Operating Bands: C-band, O-band, L-band
  • Wavelength Range: Visible to mid-infrared (leveraging SiN transparency window)
  • High-Speed Modulation: Up to 100 GHz capability
  • Low speed modulation: Down to kilohertz modulation speed with high fidelity 

 

Physical Structure

Material Properties

  • SiN Layer Thickness: 350 nm (AN350 platform), 800 nm (AN800 platform)
  • TFLN Configuration: Slab overlay on SiN waveguides
  • Material flexibility: TFLN, MgO-TFLN, TFLT available
  • Waveguide Architecture: SiN guides optical mode, LN provides electro-optic effect
  • RF Electrode Materials: Available (specific materials under DKLA)

Integration Details

  • SiN-TFLN Coupling: Adiabatic taper transitions provided as PDK black-box components
  • Transition Loss: Low-loss coupling (specific values available under DKLA)
  • Back Reflection: Minimized through optimized transition design

 

Electrical Characteristics

Phase Shifters

  • Thermo-optic Phase Shift: < 15mW per π phase shift demonstrated
  • Operating Stability: Prolonged operation without failure
  • Temperature Range: Standard operation (cryogenic compatibility confirmed)

RF Performance

  • On-chip RF Termination: Available
  • Termination Resistance: Proprietary material (black box available)
  • High-Frequency Operation: Designed for 100+ GHz applications

 

Reliability & Qualification

Current Status

  • Stress Testing: Thermo-optic phase shifters qualified for >4π operation

Manufacturing Quality

  • Wafer-scale Uniformity: Industrial 200mm platform ensures high uniformity

 

Lithium Niobate PDK Components

Available Building Blocks

  • Intensity Modulators: Electro-optic modulators with standardized interfaces
  • Phase Modulators: Electro-optic modulators with standardized interface
  • Transitions: SiN-TFLN adiabatic taper interfaces
  • RF Terminations: On-chip termination structures

Design Features

  • Black-box Components: Fully characterized, ready-to-use building blocks
  • SiN Compatibility: Compatibility with AN350 and AN800 SiN PDK library
  • Standardized Interfaces: Consistent design rules across all components

 

Process Capabilities

Fabrication Details

  • LN Processing: LN integrated on CMOS fabricated wafers
  • Waveguide Strategy: SiN-loaded approach (LN remains as slab)
  • Patterning: Advanced lithography on 200mm wafers
  • Material Integration: Heterogeneous SiN-TFLN integration

Advanced Options

  • Custom Geometries: Available on demand
  • Multi-layer Structures: Supported on platform

 

Applications-Specific Performance

Quantum Computing

  • Switch Networks: Fast, low-loss switching capability
  • Phase Stability: Suitable for quantum coherence requirements

High-Speed Communication

  • Bandwidth: 100+ GHz modulation capability
  • Signal Integrity: Low insertion loss, minimal distortion
  • Multi-band Operation: C, O, and L-band compatibility

Sensing Applications

    • Phase Sensitivity: High-precision phase modulation
  • Optical loss: Low end to end optical loss

Space Applications

  • SWaP: Reduced modulator size, weight and power

 

Technical Support & Documentation

Available Resources

  • PDK Documentation: Comprehensive design kit with characterized components
  • Application Notes: Specific guidance for different use cases
  • Simulation Models: Verified models for design optimization
  • Layout Guidelines: Best practices for optimal performance

Access Requirements

  • Detailed Specifications: Available under NDA
  • Performance Maps: Wafer-scale uniformity data under NDA
  • Yield Information: Manufacturing data for qualified projects
  • Custom Characterization: Available for dedicated development projects

 

For detailed specifications, performance maps, and technical discussions, please contact our sales team at [email protected]. All proprietary technical data is shared under appropriate non-disclosure agreements.

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