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

(* s)2fG\1  
Demo for program"RP Fiber Power": thulium-doped fiber laser, `zt_7MD  
pumped at 790 nm. Across-relaxation process allows for efficient mzc 4/<th  
population of theupper laser level. pBP.x#|  
*)            ！（*  *）注释语句 T%n2$  
!o+_T?  
diagram shown: 1,2,3,4,5  ！指定输出图表 BQ2wnGc  
; 1: "Powersvs. Position"     ！分号是注释；光纤长度对功率的影响 { TRsd  
; 2:"Variation of the Pump Power"  ！泵浦光功率变化对信号输出功率的影响 -x4X O`b  
; 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 3lq Mucr  
; 4:"Transverse Profiles"             ！横向分布，横坐标为半径位置 S&Ee,((E(  
; 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 *[R eb %  
^ Dt#$Z  
include"Units.inc"         ！读取“Units.inc”文件中内容 Z)xaJGbw  
4[-*~C|W5  
include"Tm-silicate.inc"    ！读取光谱数据 ~~,rp) )  
]a3iEA2 (  
; Basic fiberparameters:    ！定义基本光纤参数 mA@Me7m}  
L_f := 4 { fiberlength }      ！光纤长度 S#Sb]  
No_z_steps := 50 {no steps along the fiber } ！光纤步长，大括号{ }是注释，相当于备注 F0UVo  
r_co := 6 um { coreradius }                ！纤芯半径 v[n7"  
N_Tm := 100e24 { Tmdoping concentration }  ！纤芯Tm离子掺杂浓度  ?k|H3;\  
rf%7b8[v  
; Parameters of thechannels:                ！定义光信道 :4T("a5aM  
l_p := 790 nm {pump wavelength }                ！泵浦光波长790nm LJTQaItdqJ  
dir_p := forward {pump direction (forward or backward) }   ！前向泵浦 PeE/iZ.  
P_pump_in := 5 {input pump power }                    ！输入泵浦功率5W 1G'`2ATF*  
w_p := 50 um {radius of pump cladding }               ！包层泵浦相应的半径 50um mTEx,   
I_p(r) := (r <=w_p) { pump intensity profile }          ！泵浦光强度分布 d'Axum@  
loss_p := 0 {parasitic losses of pump wave }           ！泵浦光寄生损耗为0 !GQ\"Ufs>  
l?)ZJ3]a  
l_s := 1940 nm {signal wavelength }                   ！信号光波长1940nm FG!X"<he  
w_s := 7 um                          ！信号光的半径 BMIyskl=i  
I_s(r) := exp(-2 *(r / w_s)^2)            ！信号光的高斯强度分布 79yd&5#e?  
loss_s := 0                            ！信号光寄生损耗为0 b4""|P?L  
1uk 0d`JL  
R_oc := 0.70 {output coupler reflectivity (right side) }      ！输出耦合反射率 (x$9~;<S*d  
iIGbHn,/  
; 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 v^7LctcVm  
calc $eBX  
  begin s{4\xAS>  
    global allow all;                   ！声明全局变量 b]JI@=s?  
    set_fiber(L_f, No_z_steps, '');        ！光纤参数 [J0 v&{)?  
    add_ring(r_co, N_Tm); '2-oh  
    def_ionsystem();              ！光谱数据函数 &X]\)`j0  
    pump := addinputchannel(P_pump_in, l_p,'I_p', loss_p, dir_p);  ！泵浦光信道 leiW4Fj  
    signal_fw := addinputchannel(0, l_s, 'I_s',loss_s, forward);      ！前向信号光信道 ?<yM7O,4  
    signal_bw := addinputchannel(0, l_s, 'I_s',loss_s, backward);    ！后向信号光信道 ;|cTHGxbE  
    set_R(signal_fw, 1, R_oc);                                 ！设置反射率函数 |uH%6&\  
    finish_fiber();                                   }Y17*zp%  
  end; TV}}dw  
5Y3i|cj  
; Display someoutputs in the Output window (on the right side): ！在Output aera区域显示输出 lRP1&FH0  
show "Outputpowers:"                                   ！输出字符串Output powers： 1]T`n/d V  
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） Sj(F3wY  
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） M}hrO-C  
g3%t8O/M  
Ij'NC C  
; ------------- JkA|Qdj~Mr  
diagram 1:                   !输出图表1 .M4IGOvOS  
a/uo}[Y  
"Powers vs.Position"          ！图表名称 [ &qA\  
M'1!<a-Mp  
x: 0, L_f                      ！命令x: 定义x坐标范围 S|GWcSg  
"position infiber (m)", @x      ！x轴标签；@x 指示这些字符串沿坐标轴放置 {hO`6mr&t  
y: 0, 15                      ！命令y: 定义y坐标范围 9><mp]E4  
y2: 0, 100                    ！命令y2: 定义第二个y坐标范围 cDXsi#Raj  
frame          ！frame改变坐标系的设置 '~wpP=<yyF  
legpos 600, 500  ！图行在图表窗口中的位置（相对于左上角而言） -NBiW6b~  
hx             ！平行于x方向网格 Us~ X9n_F  
hy              ！平行于y方向网格 ^aRgMuU  
7CB#YP?E  
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 kDz>r#%  
  color = red,  ！图形颜色 '7im  
  width = 3,   ！width线条宽度 &(xUhX T  
  "pump"       ！相应的文本字符串标签 m$$?icA  
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 0D(cXzQP  
  color = blue,     )J3kxmlzQ  
  width = 3, Ld|V^9h1;  
  "fw signal" ~tGCLf]c\  
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 | H ;+1  
  color = blue, +TRy:e  
  style = fdashed, &}`K^5K|O:  
  width = 3, v&MU=Tcqi  
  "bw signal" P l{QOR  
u&TdWZe  
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 e"+dTq8W  
  yscale = 2,            ！第二个y轴的缩放比例 <2P7utdZ  
  color = magenta, QlW=_Ymv{  
  width = 3, }G1&]Wt_  
  style = fdashed, xT F=Y_  
  "n2 (%, right scale)" Eo{EKI1  
4^!4eyQ^  
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 ur2!#bU9  
  yscale = 2, '0+$ m=   
  color = red, ]RFdLV?  
  width = 3, %3a|<6  
  style = fdashed, |tG+iF@4  
  "n3 (%, right scale)" `% E9xcD%  
Uk-HP\C"7  
< `Z%O<X  
; ------------- Xi~9&ed#$i  
diagram 2:                    ！输出图表2 Gz dgL"M[  
e!o(g&wBj  
"Variation ofthe Pump Power" $+:(f{Va*  
vg5NY =O  
x: 0, 10 mpef]9  
"pump inputpower (W)", @x 9)yG.9d1  
y: 0, 10 b4~H3|  
y2: 0, 100 \mXqak,y  
frame o1YU_k<#  
hx |@`"F5@,  
hy 9p> /?H|  
legpos 150, 150 6f}e+80  
X7e/:._SAH  
f: (set_P_in(pump, x);P_out(signal_fw)), ！set_P_in(pump,x)改变泵浦信道功率；P_out(signal_fw)输出前向信号光 E8tD)=1  
  step = 5, YIDg'a+z  
  color = blue, &LU'.jY  
  width = 3, d1NE%hg3  
  "signal output power (W, leftscale)",     ！相应的文本字符串标签 AA7#c7  
  finish set_P_in(pump, P_pump_in) V<$*Y>;  
Y(GW0\<  
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 C.E[6$oVc  
  yscale = 2, >RR<eYu7m  
  step = 5, YZ[%uArm  
  color = magenta, 0QR.   
  width = 3, >i8~dEbB  
  "population of level 2 (%, rightscale)", fSV5  
  finish set_P_in(pump, P_pump_in)  6`"ZsO  
`D)S-7BR  
f: (set_P_in(pump,x); 100 * n_av(3)),   ！改变泵浦信号功率对能级3上激活粒子占比的影响 ALR:MAXwC  
  yscale = 2, P|N?OocE  
  step = 5, ZW* fOaj  
  color = red, v>^jy8$  
  width = 3, )[DpK=[N^p  
  "population of level 3 (%, rightscale)", H^v{Vo  
  finish set_P_in(pump, P_pump_in) /.-m}0h|W-  
;qT5faKB3J  
HWR& C  
; ------------- 8D T@h8tA  
diagram 3:                         ！输出图表3 0|Q.U  
L{K*~B-p  
"Variation ofthe Fiber Length" R`7n^,  
r!M#7FDs(  
x: 0.1, 5 y<uE-4  
"fiber length(m)", @x t>@yv#  
y: 0, 10 h*l4Y!7  
"opticalpowers (W)", @y A[RN-R,  
frame mdt ?:F4Q  
hx  /Ef4EX0  
hy |lHFo{8"  
r &c_4%y  
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 WnO DDr  
  step = 20,             d5q4'6o,  
  color = blue, j%Gbg J  
  width = 3, "DzG Bu\  
  "signal output" [Z% l.  
YrKFa%k  
;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 "9 u-lcQ\  
   step = 20, color = red, width = 3,"residual pump" ,@,LD  u  
DlS&qFs  
! set_L(L_f) {restore the original fiber length } = jBL'|k5  
z}mvX .j7  
-|$*l Q  
; ------------- ev*c4^z:s  
diagram 4:                                  ！输出图表4 ;HT0w_,  
w=gQ3j#s  
"TransverseProfiles" ],$6&Cm  
|H<|{{E  
I_max :=maxr(I(pump, -1, 0, 0), I(signal_fw, -1, 0, 0)) `lvh\[3^  
\c FAxL(  
x: 0, 1.4 * r_co /um +%x^RV}  
"radialposition (µm)", @x 4=UI3 2v3  
y: 0, 1.2 * I_max *cm^2 <xC: Ant  
"intensity (W/ cm&sup2;)", @y AtuZF  
y2: 0, 1.3 * N_Tm v7g [Lk  
frame =sL(^UISl  
hx \S'cW B  
hy }1@n(#|c  
~S! L!qY  
f: N_dop(1, x * um,0),      ！掺杂浓度的径向分布 *(>Jd|C  
  yscale = 2, *j/ uihY  
  color = gray, YlG; A\]k  
  width = 3, _y|[Z;  
  maxconnect = 1, MyK^i2eD  
  "N_dop (right scale)" -.^@9 a>  
d!w1t=2H  
f: I(pump, -1, x *um, 0) * cm^2,    ！泵浦光沿光纤径向的强度分布 EmYO5Whi  
  color = red, QZqp F9Eu  
  maxconnect = 1,           ！限制图形区域高度，修正为100%的高度 $/MY,:*e  
  width = 3, rK*hTjVn  
  "pump" XlE$.  
1g+LF[*-~  
f: I(signal_fw, -1,x * um, 0) * cm^2,  ！信号光沿光纤径向的强度分布 VvzPQk  
  color = blue, 9Zs #Ky/  
  maxconnect = 1, cvn-*Sj  
  width = 3, Cq TH!'N  
  "signal" yIM.j;5:~5  
YAX #O\,  
+'!h-x1y~  
; ------------- 6R0D3kW  
diagram 5:                                  ！输出图表5 "[FCQ  
1{= E ?  
"TransitionCross-sections" 2#,8evH  
2K5}3<KD/  
I_max :=maxr(I(pump, -1, 0, 0), I(signal_fw, -1, 0, 0)) p!.  /  
W^-hMT]uD  
x: 1450, 2050 tzx:*  
"wavelength(nm)", @x W,0KBkkp  
y: 0, 0.6 {\ A_%  
"cross-sections(1e-24 m&sup2;)", @y k?!TjBKm  
frame oiIt3<BX  
hx dO Y lI`4  
hy {LjK_J'  
/5Gnb.zN)  
f: s12_Tm(x * nm) /1e-24,      ！Tm3+吸收截面与波长的关系 JDIz28Ww  
  color = red, wY."Lw> 6  
  width = 3, h#$ _<U  
  "absorption" O e0KAn  
f: s21_Tm(x * nm) /1e-24,  ！Tm3+发射截面与波长的关系 $Ui]hA-:?y  
  color = blue, @^w!% ?J  
  width = 3, sE(X:[Am  
  "emission" >$d d 9|[  
q8&4=eV\A  
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 © 2005-2026 光行天下 蜀ICP备06003254号-1 网站统计