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Contents

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1

Introduction to the EPDA Framework

EPDA for Photonics Integrated Circuits

About the CurvyCore Technology

Setting Environment Variables

Setting Environment Variables in a .cdsenv or .cdsinit File

Setting Environment Variables in the CIW

2

Using EPDA in the Virtuoso Environment

Specifying Technology Information

Launching Virtuoso in Photonics Mode

Launching the Virtuoso Photonics Option

Launching the Virtuoso Photonics Platform

Verifying the Photonics License

Generating Layout

Opening the Library Manager

Creating a New Library

Creating a New Library Cellview

Creating a Schematic Cellview

Opening a Schematic Cellview

Creating a Layout Cellview

Specifying the Components to be Generated

Specifying the I/O Pins to be Generated

Generating Selected From Layout

Abutting Photonic Elements

Generating Optical Chains

Generating an Incremental Chain

Generating an Anchored Chain

Editing Layout

Editing the Layout Parameters

Editing the Composite Waveguides

Managing the Layout Constraints

Routing Layout

Verifying Design

Checking a Layout Against a Schematic

Checking XL Compliance

3

CurvyCore Building Blocks

CurvyCore Mathematical Objects

Curves

Paths and Facets

Attributes of ccPath Objects

Surfaces and Facets

CurvyCore Pcells

Waveguide Connectors

Straight Connectors

Bend Connectors

Curve Connectors

Waypoint Connectors

Photonics Environment Variables

Setting Environment Variables

List of Photonics Solution Environment Variables

cweAlignElements

cweMatchWidths

opticalSigTypePropagation

opticalNetColor

opticalNetColoring

opticalNetLineStyle

phoAbutAutoAdjust

phoAbutClass

phoAbutFunction

phoAbutNonPcells

phoComposeMaster

phoComposeMasterPromptOff

phoPinInputAngle

phoPinLayer

phoPinRadius

phoPinWidth

photonicDisplay

photonicPinWidth

photonicPinAngle

photonicPinFacetInPacket

photonicPinFacetOutPacket

photonicPinLabelPacket

photonicPinRadius

photonicPinRadiusLinePacket

photonicPinWidthLinePacket

srcOpticalElectricalConnection

srcOpticalMultiToSingle

srcOpticalSingleToMulti

srcOpticalTooManyConnections

B

Forms

Virtuoso Photonics Solution Forms

Composite Waveguide Editor Form

Generate Selected From Layout Form

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