首页 -> 登录 -> 注册 -> 回复主题 -> 发表主题
光行天下 -> OptiSystem,PhotonDesign,Rsoft -> RP Fiber Power仿真设计掺铥光纤激光器代码详解 [点此返回论坛查看本帖完整版本] [打印本页]

小火龙果 2020-05-28 16:28

RP Fiber Power仿真设计掺铥光纤激光器代码详解

(* A 5\"e^>  
Demo for program"RP Fiber Power": thulium-doped fiber laser, \}_7^)S;  
pumped at 790 nm. Across-relaxation process allows for efficient fTnyCaB  
population of theupper laser level. sZ(Q4)r  
*)            ！（*  *）注释语句 6(Rq R  
E9NGdp&-Ah  
diagram shown: 1,2,3,4,5  ！指定输出图表 Ymh2qGcj]8  
; 1: "Powersvs. Position"     ！分号是注释；光纤长度对功率的影响 % w/1Uo24  
; 2:"Variation of the Pump Power"  ！泵浦光功率变化对信号输出功率的影响 _O'rZ5}&  
; 3:"Variation of the Fiber Length"！信号输出功率vs 光纤长度的变化，仿真最佳光纤长度 `[R:L.H1  
; 4:"Transverse Profiles"             ！横向分布，横坐标为半径位置 E?W!.hbA  
; 5:"Transition Cross-sections"    ！不同波长的跃迁横截面，横坐标波长，纵坐标为横截面 oI"Fpo  
w+ )GM  
include"Units.inc"         ！读取“Units.inc”文件中内容 z K]%qv]  
;{#M  
include"Tm-silicate.inc"    ！读取光谱数据 D"><S<C\C  
U8@*I>vA  
; Basic fiberparameters:    ！定义基本光纤参数 XT;IEZQZ  
L_f := 4 { fiberlength }      ！光纤长度 dXy"yQ>{  
No_z_steps := 50 {no steps along the fiber } ！光纤步长，大括号{ }是注释，相当于备注 BB}iBf I'  
r_co := 6 um { coreradius }                ！纤芯半径 `E%d$  
N_Tm := 100e24 { Tmdoping concentration }  ！纤芯Tm离子掺杂浓度 oML K!]a  
t@mw f3,  
; Parameters of thechannels:                ！定义光信道 <UHf7:0V  
l_p := 790 nm {pump wavelength }                ！泵浦光波长790nm MkIO0&0O  
dir_p := forward {pump direction (forward or backward) }   ！前向泵浦 Kwmo)|7uPU  
P_pump_in := 5 {input pump power }                    ！输入泵浦功率5W H<3b+Sg  
w_p := 50 um {radius of pump cladding }               ！包层泵浦相应的半径 50um L ~' N6  
I_p(r) := (r <=w_p) { pump intensity profile }          ！泵浦光强度分布 -cC(d$y  
loss_p := 0 {parasitic losses of pump wave }           ！泵浦光寄生损耗为0 [ Sa C  
q>h+Ke  
l_s := 1940 nm {signal wavelength }                   ！信号光波长1940nm X| 0`$f  
w_s := 7 um                          ！信号光的半径 GoGgw]h>x  
I_s(r) := exp(-2 *(r / w_s)^2)            ！信号光的高斯强度分布 yru}f;1  
loss_s := 0                            ！信号光寄生损耗为0 E.*OA y  
}E] &13>r  
R_oc := 0.70 {output coupler reflectivity (right side) }      ！输出耦合反射率 \d8=*Zpz7  
IOsDVIXL\  
; Function for defining themodel:   ！定义模型函数，一定要有calc命令，否则函数只会被定义，但不会被执行 g0 U\AN  
calc I>\?t4t  
  begin Ho*RLVI0U  
    global allow all;                   ！声明全局变量 >Qu^{o  
    set_fiber(L_f, No_z_steps, '');        ！光纤参数 /-9+(  
    add_ring(r_co, N_Tm); `RLrT3 4  
    def_ionsystem();              ！光谱数据函数 [_B&7#3>7  
    pump := addinputchannel(P_pump_in, l_p,'I_p', loss_p, dir_p);  ！泵浦光信道 >.sN?5}y  
    signal_fw := addinputchannel(0, l_s, 'I_s',loss_s, forward);      ！前向信号光信道 omU)hFvyS  
    signal_bw := addinputchannel(0, l_s, 'I_s',loss_s, backward);    ！后向信号光信道 X Ow^"=Oa[  
    set_R(signal_fw, 1, R_oc);                                 ！设置反射率函数 im%3*bv-  
    finish_fiber();                                   4E94W,1%,Y  
  end; n]g,)m  
W- B[_  
; Display someoutputs in the Output window (on the right side): ！在Output aera区域显示输出 X64I~*  
show "Outputpowers:"                                   ！输出字符串Output powers： nFn`>kQ  
show"pump:     ", P_out(pump):d3:"W"  ！输出字符串pump：和计算值（格式为3个有效数字，单位W） gDBQ\vM8  
show"signal:   ",P_out(signal_fw):d3:"W" ！输出字符串signal：和计算值（格式为3个有效数字，单位W） #GJh:#tt^  
69w"$V k  
+ opN\`  
; ------------- `^Sq>R!;  
diagram 1:                   !输出图表1 qf{B  
jiD8|%}v  
"Powers vs.Position"          ！图表名称 ?Gu>!7  
#.xTAvD  
x: 0, L_f                      ！命令x: 定义x坐标范围 CzbNG^+  
"position infiber (m)", @x      ！x轴标签；@x 指示这些字符串沿坐标轴放置 C\h<02  
y: 0, 15                      ！命令y: 定义y坐标范围 j ZafwBi  
y2: 0, 100                    ！命令y2: 定义第二个y坐标范围 `h]f(  
frame          ！frame改变坐标系的设置 1Ac1CsK*  
legpos 600, 500  ！图行在图表窗口中的位置（相对于左上角而言） a-hGpYJJG  
hx             ！平行于x方向网格 I8:&Btf  
hy              ！平行于y方向网格 CplRnKra  
|ZzBCL8q  
f: P(pump, x),    ！命令f: 定义函数图；P(pump, x)函数是计算x位置处的泵浦光功率 2$UR " P  
  color = red,  ！图形颜色 +5\\wGo<  
  width = 3,   ！width线条宽度 W.<<azi  
  "pump"       ！相应的文本字符串标签 eF\C?4  
f: P(signal_fw, x),  ！P(signal_fw ,x) 函数是计算x位置处的前向信号光功率 fL:Fn"Nv  
  color = blue,     t fQq3#  
  width = 3, ?5gpk1  
  "fw signal" _L.yt5_  
f: P(signal_bw, x),   ！P(signal_bw ,x) 函数是计算x位置处的后向信号光功率 U$Z}<8  
  color = blue, Xqw7lj;K  
  style = fdashed, xo+z[OIlF  
  width = 3, K>6p5*&  
  "bw signal" s]>%_(5  
v Rs5-T  
f: 100 * n(x, 2),    ！n(x ,2) 函数是计算x位置处激活粒子数在能级2上的占比 P ie!Su`  
  yscale = 2,            ！第二个y轴的缩放比例 (o\~2e:  
  color = magenta,  K>eG5tt  
  width = 3, &9{BuBO[  
  style = fdashed, r/f;\w7  
  "n2 (%, right scale)" >$F]Ss)$  
[J Xrj{  
f: 100 * n(x, 3),          ！n(x ,3) 函数是计算x位置处激活粒子数在能级3上的占比 g&wQ^  
  yscale = 2, 2N]s}/l  
  color = red, .@V>p6MV  
  width = 3, kMXl {  
  style = fdashed, Zv93cv  
  "n3 (%, right scale)" -GjJrYOU  
t T:yvU@a  
E(#2/E6  
; ------------- @xE Q<g  
diagram 2:                    ！输出图表2 !HYqM(|{.  
H'>  
"Variation ofthe Pump Power" w (1a{m?ht  
O/nS,Ux  
x: 0, 10 ^e ii 4  
"pump inputpower (W)", @x Q!v[b{]8  
y: 0, 10 f6)H!SI  
y2: 0, 100 r MlNp?{_  
frame |zKcL3*  
hx F^-4Pyq@  
hy 1\uS~RR  
legpos 150, 150 5JXLfYTUI  
7j8_O@_  
f: (set_P_in(pump, x);P_out(signal_fw)), ！set_P_in(pump,x)改变泵浦信道功率；P_out(signal_fw)输出前向信号光 #4>F%_  
  step = 5, dGe  
  color = blue, &@+; ]t  
  width = 3, \mloR '  
  "signal output power (W, leftscale)",     ！相应的文本字符串标签 T~>:8i  
  finish set_P_in(pump, P_pump_in) (n\ cs$  
[qB=OxH?  
f: (set_P_in(pump,x); 100 * n_av(2)),   ！改变泵浦信号功率对能级2上激活粒子占比的影响 ^(R gSMuT`  
  yscale = 2, =_Rd0,  
  step = 5, >Mn.|:DF]&  
  color = magenta, RU=%yk-gM  
  width = 3, Pif1sL6'  
  "population of level 2 (%, rightscale)", bkTj Q  
  finish set_P_in(pump, P_pump_in) &7LfNN`  
LJD"N#c   
f: (set_P_in(pump,x); 100 * n_av(3)),   ！改变泵浦信号功率对能级3上激活粒子占比的影响 26A#X  
  yscale = 2, C'ZU .Y  
  step = 5, Y i`.zm  
  color = red, Qw:j2g2H7  
  width = 3, \N30SG ?o  
  "population of level 3 (%, rightscale)", uvL|T48  
  finish set_P_in(pump, P_pump_in) (!s[~O6  
v]v f(]""  
"'Ik{wGc  
; ------------- =RA6p  
diagram 3:                         ！输出图表3 `0D+x  
gQ~4udla.  
"Variation ofthe Fiber Length" @p;4g_F  
?jbam! A  
x: 0.1, 5 Iu8=[F>  
"fiber length(m)", @x !k:j+h/  
y: 0, 10 jolCR-FDu  
"opticalpowers (W)", @y Ts\7)6|F  
frame SzgVvmM}  
hx H\T h4teE  
hy hjE9[{K  
e(Ve rd:c  
f: (set_L(x);P_out(signal_fw)),     ！改变光纤长度对信号光输出功率的影响 Hi Yx(hY  
  step = 20,             (ZYOm  
  color = blue, &N EzKf  
  width = 3, S`::f(e  
  "signal output" #!2gxm;g  
T(6S~; ,Z  
;f: (set_L(x);P_out(pump)),                     ！改变光纤长度对泵浦信号输出功率的影响 kQ +   
   step = 20, color = red, width = 3,"residual pump" =GF+hM/~  
-?uwlpm#  
! set_L(L_f) {restore the original fiber length } ^P[*yf  
x;+,lP  
`fs[C  
; -------------  [7bY(  
diagram 4:                                  ！输出图表4 Hl#o& *Ui"  
$jHL8r\e7  
"TransverseProfiles" ^JTfRZ :a  
9} vWTt0  
I_max :=maxr(I(pump, -1, 0, 0), I(signal_fw, -1, 0, 0)) ;(XSw%Y H  
gVGq  
x: 0, 1.4 * r_co /um =Zj9F1E[i  
"radialposition (µm)", @x 7cC$)  
y: 0, 1.2 * I_max *cm^2 +wmfl:\^{H  
"intensity (W/ cm&sup2;)", @y _Qv4;a  
y2: 0, 1.3 * N_Tm X@arUs7  
frame ,"D1!0  
hx ' |4XyU=  
hy \ .:CL?m#  
9DIGK\  
f: N_dop(1, x * um,0),      ！掺杂浓度的径向分布 r )T`?y  
  yscale = 2, W?@ ;(k  
  color = gray, `]%{0 Rx  
  width = 3, dWI\VS9  
  maxconnect = 1, l6i 2!&8P%  
  "N_dop (right scale)" VR'w$mp  
IcA]<}0!"v  
f: I(pump, -1, x *um, 0) * cm^2,    ！泵浦光沿光纤径向的强度分布 LcF0:h'  
  color = red, })J]D~!p  
  maxconnect = 1,           ！限制图形区域高度，修正为100%的高度 _%t w#cM  
  width = 3, MFC= oKD  
  "pump" s#4 "f  
%hXa5}JL  
f: I(signal_fw, -1,x * um, 0) * cm^2,  ！信号光沿光纤径向的强度分布 e@6}?q;  
  color = blue, IRpCbTIXK  
  maxconnect = 1, }\1V;T  
  width = 3, pD){K  
  "signal" R8ZW1  
5~\W!|j/  
=~R 0U  
; ------------- ;N)qNiJY  
diagram 5:                                  ！输出图表5 0hPm,H*Y]  
5 bgx;z9  
"TransitionCross-sections" 3c6<JW  
2^|*M@3r  
I_max :=maxr(I(pump, -1, 0, 0), I(signal_fw, -1, 0, 0)) &)rmv  
L:~ "Vw6]_  
x: 1450, 2050 RlpW)\{j?  
"wavelength(nm)", @x ^D!UF(H  
y: 0, 0.6 \wTW hr0  
"cross-sections(1e-24 m&sup2;)", @y ~V(WD;Mk  
frame T'w=v-(J  
hx 9X!OQxmg  
hy f9; M"Pd  
v=|ahsYC  
f: s12_Tm(x * nm) /1e-24,      ！Tm3+吸收截面与波长的关系 6Z7{|B5}Y  
  color = red, CnJO]0Op3  
  width = 3, ).k=[@@V  
  "absorption" ETYw  
f: s21_Tm(x * nm) /1e-24,  ！Tm3+发射截面与波长的关系 ,KZ_#9[>  
  color = blue, ;hRo} +\l  
  width = 3, U#YM)8;Iz  
  "emission" 'DVPx%p  
!sUo+Y  
lileisgsz 2021-09-28 09:47
感谢，视频上有点看不清楚
查看本帖完整版本: [-- RP Fiber Power仿真设计掺铥光纤激光器代码详解 --] [-- top --]

Copyright © 2005-2025 光行天下 蜀ICP备06003254号-1 网站统计