IBM Release 1.93 manual c. Phase uniformity across a plane, d. RMS Voltage across terminal points

FLUX	name=PwrIn xlo=0			xmax=10*um		ylo=0 ymax=12*um				z=zSource+1*um,
	zinside	=	zSource+2*um		xinside		=	xsize/2	yinside=ysize/2
FLUX	name=PwrIn xlo=0			xmax=10*um		ylo=0 ymax=12*um				z=zOutput,
	zinside	=	zSource+2*um		xinside		=	xsize/2	yinside=ysize/2

END OPTIMIZE

PENALTY (PwrIn-PwrOut)/PwrIn

...

END

b. Mode matching between a device output and a Gaussian beam focused at

(X, Y, Z) = (5, 5, 20) µm, propagating along the +Z direction, with the integral being carried out from 0 to 10 um in X and Y, in the plane Z=3 µm.

POSTPROCESS

...

MODEMATCH name=GaussianWaistUp , xinside= xsize/2, yinside=ysize/2, zinside=zsize/2, function=CircularGaussian, exi=1 exq=0,

eyi=0 eyq=0, ezi=0 ezq=0, xlo=0, xhi=10*um, ylo=0, yhi=10*um zlo=3*um, zhi=3*um, xfocus=5*um, yfocus=5*um, zfocus=20*um, NA= 0.35, direction=up, file=somerandomfile.dat

c. Phase uniformity across a plane

There are several ways to do this. If you want the beam to go in a particular direction, you can compute the mode match with a very low NA uniform beam; or if you want the wavefront to be planar but don’t care exactly which direction it’s going, you can compute integrals of the phase in small regions and compute the deviation from the best straight line between them. This is more messy than it is difficult.

d. RMS Voltage across terminal points

If the terminals are separated in X, this could be (assuming they’re much less than a wavelength apart):

INTEGRAL name=Vreal variable=Ex phase=0 xlo xhi ylo yhi zlo zhi INTEGRAL name=Vimag variable=Ex phase=pi/2 xlo xhi ylo yhi zlo zhi

MERIT sqrt(Vreal*Vreal+Vimag*Vimag)

e. Power dissipation in a load dissipation

f. Reflection from an interface

FLUX behind plane source/(FLUX in front+FLUX behind)

38