!---------------------------------------------------------
! Three Layer Example File.
! Comments are any text after an ! to the end of that line.
!---------------------------------------------------------
! CASE Statements indicate General Program Variables and Flags
!  KASE   Card - Specifies a name or identification tag with
!                the file
!  EPS1   Card - Convergence tolerance QZ during the root
!                search: that is, |QZapprox-QZexact| is less
!                than EPS1.  Default value (1E-8)
!  EPS2   Card - Convergence tolerance on f(QZ)=0 during the
!                root search: that is, |f(QZapprox)-f(QZexact)|
!                is less than EPS2.  Default value (1E-8)
!  GAMEPS Card - Confinement factor (Gamma) accuracy episilon
!                (1E-3)
!  QZMR   Card - Initial guess of the real part of the square
!                of WZR.
!  QZMI   Card - Initial guess of the imaginary part of the
!                square of the 
!  PRINTF Card - Control for printing table of fields,
!                intensities and phases
!  INITGS Card - Initial guess generation routine flag (0)
!  AUTOQW Card - Automatic quantum well width calculation
!                flag (0)
!  NFPLT  Card - Set equal to 1, plot near field, 0 don't plot
!  FFPLT  Card - Set equal to 1, plot far field, 0 don't plot
!  IL     Card - Iteration limit - max. number for each search
!---------------------------------------------------------

CASE KASE=hw2at0
CASE EPS1=1E-9 EPS2=1E-9 GAMEPS=1E-3 QZMR=12.857 QZMI=0.001
CASE PRINTF=0 INITGS=0 AUTOQW=0 NFPLT=0 FFPLT=0 IL=30

!---------------------------------------------------------
! MODCON Statements: indicate Boundary Conditions 
!  KPOL Card - Polarization [KPOL<=1 TE, >=2 TM]
!  APB1 Card - Principal branch specifications for wx-planes
!              (0.25)
!  APB2 Card - Principal branch specifications for wx-planes
!              (0.25)
!---------------------------------------------------------

MODCON KPOL=1 APB1=0.25 APB2=0.25

!---------------------------------------------------------
! STRUCT Statements: indicate General Structure info
!  WVL  Card - Defines the wavelength
!---------------------------------------------------------

STRUCT WVL=0.82

!---------------------------------------------------------
! LAYER Statements: indicate specific structure (layer)
!                   information
!  NREAL Value - Effective Index
!  TL    Value - Layer Thickness
!  NLOSS Value - Loss
!---------------------------------------------------------

LAYER NREAL=3.55 NLOSS=0.0 TL=10
LAYER NREAL=3.60 NLOSS=0.0 TL=0.0
LAYER NREAL=3.55 NLOSS=0.0 TL=10

!---------------------------------------------------------
! OUTPUT Statements: indicate Output Flags
!  PHMO   Card - Output PHM (Phase Integral) in *.db
!  GAMMAO Card - Output GAMMA in *.db
!  WZRO   Card - Output WZR (Eigenvalue root -real) in *.db
!  WZIO   Card - Output WZR ( " imaginary) in *.db
!  QZRO   Card - Output QZR (Real part WZR squared) in *.db
!  QZIO   Card - Output QZI (Imaginary part " ") in *.db
!  FWHPNO Card - Output FWHPN (Full width half power Near F)
!  FWHPFO Card - Output FWHPF ( " " Far Field) in *.db
!  KMO    Card - ??????
!  ITO    Card - ??????
!  SPLTFL Card - (0) Single output file, (1) Multiple, (2)...
!  MODOUT Card - Create *.ot file (output file)
!  LYROUT Card - Create *.ly file (layer file)
!---------------------------------------------------------

OUTPUT PHMO=1 GAMMAO=1 WZRO=1 WZIO=1 QZRO=1 QZIO=1
OUTPUT FWHPNO=0 FWHPFO=0 KMO=1 ITO=1
OUTPUT SPLTFL=1 MODOUT=1 LYROUT=1

!---------------------------------------------------------
! GAMOUT Statements: indicate GAMMA calculation/output info
!  LAYGAM  Card - Defines which layers gamma will be calc.
!  COMPGAM Card - (0) complex gammas not calc (1) calc
!  GAMALL  Card - (1) output the confinement factor (gamma)
!                 for all layers, (0) output gamma for layers
!                 specified by the LAYGAM card
!---------------------------------------------------------

GAMOUT LAYGAM=2 COMPGAM=0 GAMALL=0

!---------------------------------------------------------
! LOOPZ Statements: indicate high level looping (WVL,QZMR..)
!  ILZ  Value - What to loop on, 1 - WVL, 17-QZMR
!  FINV Value - Stop value
!  ZINC Value - Step value (neg. will decrement)
!---------------------------------------------------------

LOOPZ1 ILZ='OFF' FINV=12.60 ZINC=-0.01

!---------------------------------------------------------
! LOOPX Statements: indicate low level looping (NREAL,...)
!                   For looping on a parameter of 1 layer
!  ILX   Value - What to loop on, 0 - OFF, 'TL' - thickness
!  FINV  Value - Stop value
!  XINC  Value - Step value
!  LAYCH Value - Defines which layer value looped on...
!---------------------------------------------------------

LOOPX1 ILX=1 FINV=4.1 XINC=.1 LAYCH=2

!---------------------------------------------------------
! END Statement indicates the end of the input file 
!---------------------------------------------------------

END