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| − | ## LionixPyScriptExampleFDM.py
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| − | ## SAVE AS ".py"
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| − |
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| − | ## Basic commands to initialize communication with running Fimmwave program
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| − | from pdPythonLib import *
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| − | fimm = pdApp()
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| − | fimm.ConnectToApp()
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| − |
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| − | ## Naming convention for you files you may find this to be helpful
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| − | DeviceName = 'LioniX Strip WG'
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| − | Sweep = 'w_WG,h_WG'
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| − | Description = 'LioniX WG 2 Mode Summary'
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| − |
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| − | ## Write file with parameters first
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| − | filename = DeviceName+' - SWEEP_'+Sweep+' - '+Description+'.dat'
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| − | f = open(filename,'a') # Have found that 'a'pending to files prevents lost data you can also'w'rite over whatever was in the previous file of that name.
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| − |
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| − |
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| − | ## (OPTIONAL) Set constants, else you can set them in the Fimmwave GUI
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| − | xDomain = 10
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| − | fimm.Exec("app.subnodes[1].subnodes[2].setvariable(xDomain,{xDomain})")
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| − | yDomain = 10
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| − | fimm.Exec("app.subnodes[1].subnodes[2].setvariable(yDomain,{yDomain})")
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| − | n_SiO2 = 1.4456
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| − | fimm.Exec("app.subnodes[1].subnodes[2].setvariable(n_SiO2,{n_SiO2})")
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| − | n_Si3N4 = 1.9835
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| − | fimm.Exec("app.subnodes[1].subnodes[2].setvariable(n_Si3N4,{n_Si3N4})")
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| − | lambda0 = 1.55
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| − | fimm.Exec("app.subnodes[1].subnodes[2].setvariable(lambda0,{lambda0})")
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| − |
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| − | ## Create File Header
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| − | f.write(DeviceName+'\t')
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| − | f.write('\n')
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| − | f.write('User = PyScript NOOB!!!'+'\t')
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| − | f.write('\n')
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| − | f.write('\n')
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| − |
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| − | ## Records the actual values of your constants to the file for later reference
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| − | f.write('xDomain ='+'\t')
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| − | xDomain = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(xDomain)")
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| − | f.write(str(xDomain)+'\t')
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| − | f.write('um'+'\t')
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| − | f.write('\n')
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| − | f.write('yDomain ='+'\t')
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| − | yDomain = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(yDomain)")
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| − | f.write(str(yDomain)+'\t')
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| − | f.write('um'+'\t')
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| − | f.write('\n')
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| − | f.write('n_SiO2 ='+'\t')
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| − | n_SiO2 = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(n_SiO2)")
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| − | f.write(str(n_SiO2)+'\t')
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| − | f.write('\n')
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| − | f.write('n_Si3N4 ='+'\t')
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| − | n_Si3N4 = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(n_Si3N4)")
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| − | f.write(str(n_Si3N4)+'\t')
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| − | f.write('lambda0 ='+'\t')
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| − | lambda0 = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(lambda0)")
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| − | f.write(str(lambda0)+'\t')
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| − | f.write('um'+'\t')
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| − | f.write('\n')
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| − | f.write('\n')
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| − |
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| − | ## Prints the file header
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| − | print(DeviceName+'\t')
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| − |
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| − | print('User = PyScript NOOB!!!'+'\t')
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| − |
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| − |
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| − |
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| − | ## Print the actual values of your constants to the file for later reference
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| − | print('xDomain ='+'\t')
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| − | xDomain = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(xDomain)")
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| − | print(str(xDomain)+'\t')
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| − | print('um'+'\t')
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| − |
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| − | print('yDomain ='+'\t')
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| − | yDomain = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(yDomain)")
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| − | print(str(yDomain)+'\t')
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| − | print('um'+'\t')
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| − |
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| − | print('n_SiO2 ='+'\t')
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| − | n_SiO2 = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(n_SiO2)")
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| − | print(str(n_SiO2)+'\t')
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| − |
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| − | print('n_Si3N4 ='+'\t')
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| − | n_Si3N4 = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(n_Si3N4)")
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| − | print(str(n_Si3N4)+'\t')
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| − | print('lambda0 ='+'\t')
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| − | lambda0 = fimm.Exec("app.subnodes[1].subnodes[2].getvariable(lambda0)")
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| − | print(str(lambda0)+'\t')
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| − | print('um'+'\t')
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| − |
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| − | f.close() # In case the program crashes while simulating I like to only open the file when I'm writing to it.
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| − |
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| − | ## Saves the Fimmwave file in its current state. You may fine that you would like to do this in other places in your program.
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| − | fimm.Exec("app.subnodes[1].savetofile()")
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| − |
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| − | ## SWEEP w_WG
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| − | starti = 2.5
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| − | stepi = .25
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| − | stopi = 3
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| − | n_stepsi = (stopi-starti)/stepi+1
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| − |
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| − | ## SWEEP h_WG
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| − | startj = 0.05
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| − | stepj = 0.05
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| − | stopj = 0.1
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| − | n_stepsj = (stopj-startj)/stepj+1
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| − |
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| − | Nmodes = 2
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| − |
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| − | print "n_stepsi = "+str(n_stepsi)+"\n"
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| − | print "n_stepsj = "+str(n_stepsj)+"\n"
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| − | print "Nmodes = "+str(Nmodes)+"\n"
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| − |
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| − | for i in range (0,n_stepsi):
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| − | w_WG = stepi*i+starti
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| − | fimm.Exec("app.subnodes[1].subnodes[2].setvariable(w_WG,{w_WG})")
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| − | # Note: use {} to reference the value of Pyton variable in the command lines that you send Fimmwave.
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| − |
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| − |
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| − | for j in range (0,n_stepsj):
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| − | h_WG = stepj*j+startj
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| − | fimm.Exec("app.subnodes[1].subnodes[2].setvariable(h_WG,{h_WG})")
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| − |
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| − | ## Define the mode calculation parameters
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| − |
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| − | ## This code is specific to the FDM solver. For FMM you will find suble differences see LionixPyScriptExampleFMM.py
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| − | fimm.Exec("app.subnodes[1].subnodes[1].evlist.svp.lambda={lambda0}" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.svp.hcurv=0" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.svp.solvid=71" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.svp.hsymmetry=3" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.svp.vsymmetry=0" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.svp.buff=V1 200 400 0 100 0.010000" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.mlp.autorun=0" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.mlp.speed=0" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.mlp.mintefrac=0" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.mlp.maxtefrac=100" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.mlp.maxnmodes={Nmodes}" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.mlp.evstart=1e+050" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.mlp.evend=-1e+050" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.mlp.nx=200" + "\n" +
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| − | "app.subnodes[1].subnodes[1].evlist.mlp.ny=400")
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| − | ## Defines the region to calculate the confinement factor over (THIS IS VARY PARTICULAR TO THIS LIONIX WG STRUCTURE!!!!)
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| − | fimm.Exec("app.subnodes[1].subnodes[1].slices[2].layers[2].cfseg = 1") # assumes all other layers are not tag "cfseg"
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| − |
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| − | ## Calculate the modes
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| − | fimm.Exec("app.subnodes[1].subnodes[1].evlist.update")
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| − |
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| − | #### I have included these polishing commands as is is sometimes faster to first calculate at low res and then polish to higher.
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| − | ####
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| − | ## ## Change the resolution of the FDM solver (you will find this command above)
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| − | ## fimm.Exec("app.subnodes[1].subnodes[1].evlist.svp.buff=V1 300 500 0 100 0.010000")
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| − | ## ## Polish the modes
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| − | ## fimm.Exec("app.subnodes[1].subnodes[1].evlist.polishevs")
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| − | ## ## In the event that the polishing reduces the number of modes, this grabs the new number
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| − | ## Nmodes = fimm.Exec("app.subnodes[1].subnodes[1].evlist.nevals")
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| − |
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| − | f = open(filename,'a')
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| − | temp = [0]*int(Nmodes)
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| − | for k in range (1,Nmodes+1):
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| − | if (i == 0) & (j == 0) & (k == 1):
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| − | ## Write table header to file
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| − | f.write('WG Width (um)'+'\t')
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| − | f.write('WG Hieght (um)'+'\t')
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| − | f.write('Mode Number'+'\t')
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| − | f.write('TE (%)'+'\t')
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| − | f.write('Effective Area'+'\t')
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| − | f.write('neff'+'\t')
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| − | f.write('WG Overlap'+'\t')
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| − | f.write('\n')
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| − | ## Write table header to screen
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| − | print('WG Width (um)'+'\t'+
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| − | 'WG Hieght (um)'+'\t'+
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| − | 'Mode Number'+'\t'+
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| − | 'TE (%)'+'\t'+
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| − | 'Effective Area'+'\t'+
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| − | 'neff'+'\t'+
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| − | 'WG Overlap'+'\n')
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| − |
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| − | ## Write table to file
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| − | f.write(str(fimm.Exec("app.subnodes[1].subnodes[2].getvariable(w_WG)"))+'\t')
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| − | f.write(str(fimm.Exec("app.subnodes[1].subnodes[2].getvariable(h_WG)"))+'\t')
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| − | f.write(str(k)+'\t') # Mode Number
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| − | f.write(str(fimm.Exec("app.subnodes[1].subnodes[1].evlist.list[{k}].modedata.tefrac"))+'\t')
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| − | f.write(str(fimm.Exec("app.subnodes[1].subnodes[1].evlist.list[1].modedata.a_eff"))+'\t')
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| − | f.write(str(fimm.Exec("app.subnodes[1].subnodes[1].evlist.list[{k}].neff").real)+'\t')
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| − | f.write(str(fimm.Exec("app.subnodes[1].subnodes[1].evlist.list[{k}].modedata.fillFac"))+'\n')
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| − |
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| − | ## Print table to screen
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| − | print(str(fimm.Exec("app.subnodes[1].subnodes[2].getvariable(w_WG)"))+'\t'+
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| − | str(fimm.Exec("app.subnodes[1].subnodes[2].getvariable(h_WG)"))+'\t'+
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| − | str(k)+'\t'+
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| − | str(fimm.Exec("app.subnodes[1].subnodes[1].evlist.list[{k}].modedata.tefrac"))+'\t'+
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| − | str(fimm.Exec("app.subnodes[1].subnodes[1].evlist.list[1].modedata.a_eff"))+'\t'+
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| − | str(fimm.Exec("app.subnodes[1].subnodes[1].evlist.list[{k}].neff").real)+'\t'+
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| − | str(fimm.Exec("app.subnodes[1].subnodes[1].evlist.list[{k}].modedata.fillFac"))+'\n')
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| − | f.close()
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| − | raw_input("Done (Press any key):")
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| − | del fimm
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