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  • 大小: 45KB
    文件類型: .zip
    金幣: 2
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    發(fā)布日期: 2021-05-04
  • 語言: 其他
  • 標簽: 光柵??

資源簡介

可實現(xiàn)不同結構,不同入射光條件下的光纖光柵光場分布求解。

資源截圖

代碼片段和文件信息

clear;

for?ns?=?[1.44];
????for?theta?=?[5]

????????clear?-global;

????????%?function?main
????????yc_smf_28_1550;

????????fiber.n?=?[nco;?ncl;?ns];
????????fiber.r?=?[rco;?rcl;?rs];
????????dr?=?0.08;
????????[r]?=?yc_gen_unif_mesh_fiber(fiberdr);

????????opts.pml.m?=?2;
????????opts.pml.R?=?1e-12;
????????opts.pml.n?=?round(10/dr);
????????opts.pml.kappa?=?0;

????????opts.sortmode?=?‘lr‘;

????????Dn.lam?=?1.545/2/nco/cos(theta*pi/180)^2;
????????Dn.chi?=?@(z)?5e-4;%*yc_gaussian(z05e3);
????????Dn.sigma?=@(z)?2*Dn.chi(z);
????????Dn.dphi?=?@(z)?zeros(size(z));
????????Dn.phi?=?@(z)?zeros(size(z));
????????Dn.theta?=?theta?*pi/180;
????????Dn.L?=?8e3;
????????RI.n?=?@(r)?nco;
????????RI.P?=?@(r)?1;
????????RI.rmin?=?0;
????????RI.rmax?=?rco;

????????%?z?=?linspace(-Dn.L/2Dn.L/21024);
????????%?plot(zDn.chi(z));

????????grating.Dn?=?Dn;
????????grating.RI?=?RI;
????????grating.polarization?=?‘ps‘;

????????mode_solver.opts?=?opts;
????????mode_solver.m1?=?1;
????????mode_solver.nmodes1?=?5;
????????mode_solver.sel_nmodes1?=?1;
????????mode_solver.dir?=?‘S0_FBG‘;
????????mode_solver.m?=?1:2:15;
????????mode_solver.nmodes?=?10;
????????mode_solver.sel_nmodes?=?10;
????????mode_solver.r?=?r;
????????mode_solver.savemodes?=?false;
????????mode_solver.loadmodes?=?false;
????????mode_solver.sol_modes?=?false;

????????lambda?=?1.536:0.00005:1.555;

????????[RRTTRRRres]?=?yc_fbg(lambdafibermode_solvergrating);

????????name?=?[‘S1_‘num2str(theta)‘_‘...
????????????num2str(max(mode_solver.m))‘_‘...
????????????num2str(mode_solver.sel_nmodes)‘_‘...
????????????num2str(ns)‘.mat‘];
????????save(name);

????????idx?=?1:1:length(lambda);
????????figure
????????plot(lambda(idx)10*log10(TT(idx:)));
????????hold?on;
????????%?plot(lambda10*log10(RRR));
????????xlabel(num2str(theta));
????????title(num2str(ns));
????????%?axis([min(lambda)?max(lambda)+eps?-35?0]);

????????axis([1.52?1.5575?-20?0]);

????end
end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????1829??2008-12-14?23:20??yc_modesolver\examples\main_fiber_field_contour.m
?????文件????????1873??2014-03-09?07:18??yc_modesolver\examples\main_step_index_fiber.m
?????文件?????????950??2014-03-09?07:18??yc_modesolver\examples\main_bragg_fiber_1.m
?????文件????????1137??2014-03-09?07:18??yc_modesolver\examples\main_bragg_fiber_2.m
?????文件????????1469??2014-03-09?07:18??yc_modesolver\examples\main_bragg_fiber.m
?????文件????????3038??2014-03-09?07:18??yc_modesolver\src\yc_circularc.m
?????文件?????????395??2014-03-09?07:18??yc_modesolver\src\yc_gamma_fiber.m
?????文件????????1634??2014-03-09?07:18??yc_modesolver\src\yc_contour_mode_fiber.m
?????文件????????1011??2014-03-09?07:18??yc_modesolver\src\yc_sol_eig_fiber.m
?????文件?????????618??2014-03-09?07:18??yc_modesolver\src\yc_cal_bandgap_fiber.m
?????文件????????1227??2014-03-09?07:18??yc_modesolver\src\yc_poynting_fiber.m
?????文件????????1466??2014-03-09?07:18??yc_modesolver\src\yc_gen_epsr_fiber.m
?????文件????????6762??2014-03-09?07:18??yc_modesolver\src\yc_fields_fiber.m
?????文件????????2447??2014-03-09?07:18??yc_modesolver\src\yc_fibermodes.m
?????文件?????????358??2014-03-09?07:18??yc_modesolver\src\yc_gen_bragg_fiber.m
?????文件?????????670??2014-03-09?07:18??yc_modesolver\src\yc_dispersion_fiber.m
?????文件????????5033??2014-03-09?07:18??yc_modesolver\src\yc_fiber_modes.m
?????文件????????1617??2014-03-09?07:18??yc_modesolver\src\yc_sort_modes_fiber.m
?????文件?????????733??2014-03-09?07:18??yc_modesolver\src\yc_gen_unif_mesh_fiber.m
?????文件????????6339??2014-03-09?07:18??yc_modesolver\src\yc_build_mtx_fiber.m
?????文件????????1960??2014-03-09?12:46??yc_cmt\examples\main_fbg.m
?????文件????????1854??2014-03-09?12:44??yc_cmt\examples\main_lpf.m
?????文件??????????52??2009-09-02?08:24??yc_cmt\examples\yc_smf_28_1550.m
?????文件????????1993??2008-10-16?17:18??yc_cmt\src\yc_patterson_test.m
?????文件????????3243??2014-03-09?12:37??yc_cmt\src\yc_cos_sin.m
?????文件?????????645??2014-03-09?12:37??yc_cmt\src\yc_exp_phi.m
?????文件????????4000??2014-03-09?12:38??yc_cmt\src\yc_fbg.m
?????文件????????4761??2014-03-09?12:38??yc_cmt\src\yc_fbg_cmt.m
?????文件?????????569??2014-03-09?12:38??yc_cmt\src\yc_fbg_r_t_cmt.m
?????文件????????2978??2008-10-16?15:58??yc_cmt\src\yc_patterson.m
?????文件????????4421??2014-03-09?12:38??yc_cmt\src\yc_kappa_chi.m
............此處省略9個文件信息

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