diff options
| -rw-r--r-- | fitness.m | 38 |
1 files changed, 8 insertions, 30 deletions
@@ -1,34 +1,16 @@ function [Energy, Waist, Penalty] = fitness( q_0, q_final, x_final, optics_positions, optics_focal_length, lambda )
%Outputs fitness of suggested solution
x0 = 0;
- Np=20; % # of pts between start position and second lens
- N_collimated = 10; % # of pts between second lens and third lens to be collimated region
Energy = 0;
x1=optics_positions(1);
x2=optics_positions(2);
x3=optics_positions(3);
-% x_array1=linspace(x0,x2,Np);
-% x_array2=linspace(x2, x3, N_collimated);
-% x = cat(2,x_array1,x_array2);
-%
-% q_f_trial_forward = gbeam_propagation(x,q_0,x0,optics_placer(optics_positions, optics_focal_length));
-% [Waist_trial_forward, Radius_trial_forward] = q2wr(q_f_trial_forward, lambda);
-% q_f_trial_backward = gbeam_propagation(x,q_final,x_final,optics_placer(optics_positions, optics_focal_length));
-% [Waist_trial_backward, Radius_trial_backward] = q2wr(q_f_trial_backward, lambda);
-%
-% Energy = 0;
-% Penalty_waist_mismatch = sum(abs((Waist_trial_forward-Waist_trial_backward)./min(Waist_trial_forward, Waist_trial_backward)))/Np;
-%
-% Energy = 1e-2*Penalty_waist_mismatch;
-%
% penalty calculation
% do not put lenses too close to each other and end positions
lens_size=0.03;
-
-
d(1)=abs(x1-x2);
d(2)=abs(x2-x3);
d(3)=abs(x1-x3);
@@ -37,7 +19,6 @@ function [Energy, Waist, Penalty] = fitness( q_0, q_final, x_final, optics_posit d_from_end=abs(x_final-optics_positions);
-
d=cat(2, d, d_from_start, d_from_end);
coef = 1;
@@ -64,7 +45,7 @@ function [Energy, Waist, Penalty] = fitness( q_0, q_final, x_final, optics_posit [ w, w_pos ] = self_gbeam_propagation( w0, optics_positions, optics_focal_length, x0, lambda );
coef = 1;
- d_object = ((optics_positions(end) - w_pos(end - 1))^2)^.5;
+ d_object = abs(optics_positions(end) - w_pos(end - 1));
d_lens = optics_positions(end) - optics_positions(end - 1);
penalty_not_collimated_beam = coef * exp(-(d_object/d_lens)^2);
@@ -72,20 +53,17 @@ function [Energy, Waist, Penalty] = fitness( q_0, q_final, x_final, optics_posit % % waist at end matches desired waist
coef = 10;
- waist_desired = 3.709E-5;
+ [waist_desired, r_desired] = q2wr(q_final, lambda);
- penalty_waist = coef *((waist_desired-w(end))^2)^.5;
+ penalty_waist = coef *((waist_desired-w(end))^2);
Energy = Energy + penalty_waist;
- %intialize intermediate points between lenses
-% q_intermediate = q_f_trial_forward((x2<x) & (x<x3));
-% lambda_over_waist_sq = (-imag(1./q_intermediate)); %with numerical factor
-%
-% coef = 1e-3;
-% penalty_not_collimated_beam = coef * sum(exp((std(lambda_over_waist_sq)/mean(lambda_over_waist_sq)/abs(optics_positions(2) - optics_positions(3)))));
-% Energy = Energy + penalty_not_collimated_beam;
-%
+ dist_between_desired_and_final_waist_location =w_pos(end) - x_final;
+ penalty_final_waist_position = dist_between_desired_and_final_waist_location^2;
+
+ Energy = Energy + penalty_final_waist_position;
+
Penalty = [ penalty_lenses_too_closely_spaced; penalty_lenses_outside_optical_path; penalty_not_collimated_beam; penalty_waist];
end
|