PhotoCAD
  • Introduction
    • PhotoCAD Introduction
      • fnpcell
      • link
  • Installation
    • Installing PhotoCAD
      • System Requirement
      • Install Python IDE and Python package
      • Install PhotoCAD
      • PhotoCAD file structure
  • PhotoCAD Hands-on
  • gpdk (generic PDK)
    • Components: gpdk built-in components
      • Passive components
      • Active components
    • Examples: gpdk built-in examples
    • Routing: gpdk built-in routing method
    • Technology: gpdk-related process setting
      • Default process
      • Customized process
      • Waveguide information
    • layout01: Project Development
  • fnpcell
    • Definition of each component class in fnpcell
      • Full script
      • Section Script Description
    • The use of classes in fnpcell (generating components)
      • Section Script Description
    • Example of using fnpcell to build class
      • Example1: bend_bezier.py
        • Full script
        • Section Script Definition
      • Example2: bend_circular.py
        • Full script
        • Section Script Definition
    • Design Rule Check(DRC)
      • Generate SVRFTM template
      • Generate DRC template files using SVRFTM templates
        • Full script
        • Section Script Definition
      • Using DRC template files
      • Format instructions
    • Writing a user-defined PCell in PhotoCAD
      • Import module
      • Define RingResonator
      • Define RingResonator2
      • Create examples(layout units) using classes RingResonator and RingResonator2
      • GDS Layout

Guides

  • Create a Parametrized Cell(PCell)
    • Create shapes and boundaries
      • fp.el API
        • fp.el
      • fp.g API
        • fp.g
    • Default values for PCell Parameters
      • Ways to implement default values for PCell parameter
    • Define Ports/Pins
      • Ports/Pins from existing PCells
      • Manually adding Ports/Pins
        • Full Script
        • Section Script Description
        • View the layout
    • Generate array of cells
      • new_array
        • Full script
        • Section Script Description
        • Export GDS Layout
    • List of gpdk components
      • BendEuler
        • Full script
        • Section Script Description
        • Extend PCells from BendEuler
        • Export GDS Layout
      • Taper
        • Full script
        • Section Script Description
        • Extension of the taper ports
      • Splitter
        • Full Script
        • Section Script Description
        • Run the script and view the layout
      • Directional Coupler Bend
        • Full script
        • Parameter description
      • Ring filter
        • Full script
        • Parameters and testing descriptions
      • Elliptical Rings
        • Full script
        • fp.el.Ring Description
        • fp.el.EllipticalRing Description
      • Phase Shifter
        • Full script
        • Segment Description
          • 1. Import function module
          • 2. Main function
          • 3. Define function
      • Sampler Periodic
        • Full script
        • Left graph
        • Right graph
      • Mach-Zehnder modulator
        • Full Script
        • Section Script Description
        • Export GDS Layout
      • Grating Coupler with linecap
        • Full script
          • Section Script Description
          • Run the script and view the layout
  • Create a CUSTOM PDK
    • technology
      • layers.csv
      • waveguide factory.py
        • Straight
        • CircularBend
        • Implementation
      • wg.py
        • waveguide configuration
        • Define parameters in each waveguide types
        • Generate waveguide class
        • Generate wg information to csv file
      • auto_transition.py
        • Create transition components
        • Set up transition settings
        • Example
      • auto_link.py
        • LESS_TRANS
        • MAX_SWG
        • Usage
      • linker.py
    • components
      • Straight
      • bend_circular
      • Taper
      • Transition
      • grating_coupler
      • MMI
    • Standard Procedure
      • technology
        • layers.csv
        • waveguide factory.py
          • Straight
          • CircularBend
          • Implementation
        • wg.py
          • waveguide configuration
          • Define parameters in each waveguide types
          • Generate waveguide class
          • Generate wg information to csv file
        • auto_transition.py
          • Create transition components
          • Set up transition settings
          • Example
        • auto_link.py
          • LESS_TRANS
          • MAX_SWG
          • Usage
        • linker.py
      • components
        • Straight
        • bend_circular
        • Taper
        • Transition
        • grating_coupler
        • MMI
  • Design a circuit
    • Common used transformation
      • place
      • translated
      • scaled
      • rotated
      • mirrored
    • Waveguide Routing
      • Single-port to Single-port
        • Examples
      • Multi-port to Multi-port
        • fp.Linked example ( Recommendation★★★ )
        • fp.create_links example ( Recommendation★★★★★ )
      • Routing Path Selection
        • waylines
          • Absolute control points provided
          • Relative control points provided
        • waypoints
        • target_length
    • Electrical wire Routing
      • Link Electrical Pad
        • Full script
        • Parameters and testing descriptions
        • Connections
          • Top connection
          • Middle connection
          • Bottom connection
      • Link Electrical pad with turning angle
        • Full script
        • Parameters and testing description
          • Components positioning
    • Advanced Waveguide Routing
      • Routing in batch form
        • Components Scan
          • Full script
          • Section Script Definition
        • Importing python libraries and functional modules of PhotoCAD
        • Define device adaptation, fiber coupling, constant fiber coupler and several other classes
        • Define the batch class Block
        • Define Alignment
        • Define Title
        • Define Blank
        • Define method to get the port center
        • Define methods for obtaining module content
        • Define CompScan
        • Define CompScanBuilder
        • Create the component and export the layout
          • Script Description
          • GDS Layout
      • Extension of the ports
      • Extended
        • Full script
        • Section Script Definition
          • Create extended ports and export layout
        • GDS Layout
      • Expand the footprint for downstream devices
      • HFanout
        • Full script
        • Section Script Definition
          • Importing libraries and modules
          • Define HFanout
          • Create components and export layouts
        • GDS Layout
      • Horizontalization of device ports
      • Horizontalized
        • Full script
        • Section Script Definition
          • Create horizontalized components ports and export layouts
        • GDS Layout
      • LinkBetween
        • Import function module
        • Main function
        • Define function
        • Test for waypoints in LinkBetween
      • Routing automation between components ports
        • Linked
          • Full Script
          • Section Script Description
        • AutoTransitioned
      • LinkSmooth
        • Full script
    • Design rule check(DRC)
      • What is DRC?
        • Exclusion
        • Inclusion
        • Minimum_width
      • DRC check in KLayout
        • View designs in KLayout
        • Import DRC file to KLayout
        • View design rule errors
        • Make adjustments or waive the error
      • Examples files to test your knowledge
  • Post Layout Simulation
    • Component level simulation model
      • WGModel class
      • Script description
      • Other simulation models
    • MZI post-simulation
      • Full script
      • Build simulation models for WG, DC
      • Implement simulation models to components
      • Build MZI circuit and define poet-simulation functions
      • Generate GDS file and run post-simulation
  • Useful function when scripting PhotoCAD
    • Placing PCell ports
    • Get PCell information
      • Get PCell name
      • Get PCell region
      • Get ports information
      • Get two points relative information
    • Boolean operations between elements and layers
      • Boolean with different layers
      • Boolean with elements
    • Importing/Exporting GDS/Json file
      • Import GDS file
      • Export GDS file
      • Export Json file
    • Simplify layout by fp.use_sketch_view
      • Implement fp.use_sketch_view
      • Different usage of fp.use_sketch_view
      • GDS file build-time results
      • Example Scripts
    • Manually add ports/pins on PCells
    • Get the coordinates of the cell
    • Change the cell name in GDS file
      • Cell naming rules
    • Pytest: Prevent unexpected changes to the layout
      • Accidental modification of PCell with completed design
      • Accidental modification of other shared methods
    • Max-Optics simulation interface: runner.py
      • Interface usage:
      • Interface script description:
  • Quick Start: Create a Circuit
    • Step 1: Build basic building blocks
      • Bend
      • Straight
      • Taper
    • Step 2: Build basic circuits with basic building blocks
      • DirectionalCoupler
      • MMI
    • Step 3: Build complex circuits using basic building blocks
      • target_length
      • waypoints
      • waylines
    • Step 4: Drawing of common shapes and layout design by Boolean operations
      • Commonly_used_shape
        • Rectangle
        • Circle
        • Polygon
        • Ring
        • Regular_Polygon
      • Boolean_operation
        • OR
        • AND
        • NOT
        • XOR
        • Examples
    • Step 5: Example(MMI Tree)

Examples

  • Programmable Photonic Integrated Circuit
    • Part I. Building a Rectangular Network
    • Part II. Parameter Description
    • Part III. Test Description
    • Part IV. Summary
  • Triangle MZI mesh
    • Part I. Build MZI units
    • Part II. Build programmable triangular MZI mesh
      • MZI Mesh with 8 external optical ports (MZI_triangle_mesh)
      • MZI Mesh with 8 Grating Couplers (MZI_triangle_mesh_with_GC)
      • Triangle MZI array (MZI_triangle_array)
  • Demultiplexer
    • Full script
    • View GDS layout file
    • Instantiation of components
    • Testing and Analysis
    • Get Pcells information via get
    • Summary
  • Cascaded Mach-Zehnder (CMZ) wavelength filter
    • Implement simulation models for auto-link
    • Wavelength Splitters
    • CMZ wavelength demultiplexer
  • Visualize in Jupyter Notebook
    • MZI circuit layout generation in Jupyter notebook
      • Create a Jupyter Notebook
      • Code cell & Markdown cell
      • Generate MZI layout

Support and Changelog

  • fnpcell API
    • Commonly used interface
      • Graphics
      • Routing
      • Transform
      • Information
    • PCell Parameters
      • Classes
      • AnchorParam
      • BooleanParam
      • DegreeParam
      • DeviceParam
      • FloatParam
      • IParam
      • IntParam
      • LayerParam
      • ListParam
      • MappingParam
      • MetalLineTypeParam
      • NameListParam
      • NameParam
      • NonNegFloatParam
      • NonNegIntParam
      • Param
      • PointsParam
      • PortOptionsParam
      • PositionParam
      • PositiveFloatParam
      • PositiveIntParam
      • SetParam
      • TextParam
      • TransformParam
      • WaveguideTypeParam
  • Release notes
    • PhotoCAD V1.5.0
    • PhotoCAD V1.6.0
  • Frequently Asked Questions
    • Data Compression
    • Smooth curve for routing using bend_factory
    • Differences between __post_pcell_init__ & __post_init__
  • About Us
PhotoCAD
  • fnpcell API
  • View page source

fnpcell API

  • Commonly used interface
    • Graphics
    • Routing
    • Transform
    • Information
  • PCell Parameters
    • Classes
    • AnchorParam
    • BooleanParam
    • DegreeParam
    • DeviceParam
    • FloatParam
    • IParam
    • IntParam
    • LayerParam
    • ListParam
    • MappingParam
    • MetalLineTypeParam
    • NameListParam
    • NameParam
    • NonNegFloatParam
    • NonNegIntParam
    • Param
    • PointsParam
    • PortOptionsParam
    • PositionParam
    • PositiveFloatParam
    • PositiveIntParam
    • SetParam
    • TextParam
    • TransformParam
    • WaveguideTypeParam
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