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== Mode matching optical system of Green Lock System == === Target beam parameter (Y-axis) === ||<|2>Mirror||<:-2>q-parameter||<:-2>waist radius [mm]||<:-2>beam radius [mm]|| ||<:>q,,x,,||<:>q,,y,,||<:>W0,,x,,||<:>W0,,y,,||<:>W,,x,,||<:>W,,y,,|| ||SR2 (AR-surface)||1.141436 + 0.026444i||1.145506 + 0.026587i||0.066919||0.067099||2.889234||2.891750|| ||SR2 (HR-surface)||1.485931 + 0.040023i||1.488242 + 0.040171i||0.082325||0.082478||3.057627||3.056715|| ||SR3 (Input)||12.597431 + 0.040024i||12.599742 + 0.040171i||0.082325||0.082478||25.912690||25.869443|| ||BS (HR-surface)||-1017.395806 + 291.640196i||-1017.396204 + 291.640312i||7.027560||7.027562||25.503215||25.503220|| ||ITMY (HR-surface)||<-2>-1500 + 774.596669i||<-2>11.452985||<-2>24.961202|| ||ETMY (HR-surface)||<-2> 1500 + 774.596669i||<-2>11.452985||<-2>24.961202|| === Optical system === 条件 ・ ファイバーからの出射光のウエスト半径は350um ・ SR2 AR-surfaceから定盤までの距離はおよそ2m {{attachment:SR2後の入射光学系.png|Mode matching optical system (back of SR2)|width="500"}} === Simulation of Beam parameter using above optical system === ||<|2>Mirror||<-2>q-parameter||<-2>Waist radius [mm]||<-2>Beam radius [mm]|| ||qx||qy||W0x||W0y||Wx||Wy|| ||Fiber coupler||<-2>0 + 0.723393i||<-2>0.350||<-2>0.350|| ||L1 (Input)||<-2>0.095 + 0.723393i||<-2>0.350||<-2>0.353005|| ||L1 (Output)||<-2>-0.108744 + 0.016016i||<-2>0.520787||<-2>0.357411|| ||L2 (Input)||<-2>0.759744 + 0.016016i||<-2>0.520787||<-2>2.470960|| ||L2 (Output)||<-2>-0.699938 + 36.041929i||<-2>2.470500||<-2>2.470966|| ||L3 (Input)||<-2>1.324938 + 36.041929i||<-2>2.470500||<-2>2.472169|| ||L3 (Output)||<-2>-0.973537 + 0.026516i||<-2>0.670087||<-2>2.461182|| ||SR2 (AR)||<-2>1.143463 + 0.026516i||<-2>0.670087||<-2>2.890476|| ||ITMy (HR)||-1463.290098 + 730.177686i||-1537.778046 + 823.090006i||11.119753||11.806048||24.904507||25.018072|| ||ETMy (HR)||1536.709902 + 730.177686i||1462.221956 + 823.090006i||11.119753||11.806048||25.909775||24.068022|| === Beam radius from the fiber coupler to arm cavity === {{attachment:ビーム径の変化.png|Y-axis Beam radius|width="800"}} |
Mode matching optical system of Green Lock System
Contents
Mode matching optical system of Green Lock System
Target beam parameter (Y-axis)
Mirror |
q-parameter |
waist radius [mm] |
beam radius [mm] |
|||
qx |
qy |
W0x |
W0y |
Wx |
Wy |
|
SR2 (AR-surface) |
1.141436 + 0.026444i |
1.145506 + 0.026587i |
0.066919 |
0.067099 |
2.889234 |
2.891750 |
SR2 (HR-surface) |
1.485931 + 0.040023i |
1.488242 + 0.040171i |
0.082325 |
0.082478 |
3.057627 |
3.056715 |
SR3 (Input) |
12.597431 + 0.040024i |
12.599742 + 0.040171i |
0.082325 |
0.082478 |
25.912690 |
25.869443 |
BS (HR-surface) |
-1017.395806 + 291.640196i |
-1017.396204 + 291.640312i |
7.027560 |
7.027562 |
25.503215 |
25.503220 |
ITMY (HR-surface) |
-1500 + 774.596669i |
11.452985 |
24.961202 |
|||
ETMY (HR-surface) |
1500 + 774.596669i |
11.452985 |
24.961202 |
|||
Optical system
条件
・ ファイバーからの出射光のウエスト半径は350um
・ SR2 AR-surfaceから定盤までの距離はおよそ2m
Simulation of Beam parameter using above optical system
Mirror |
q-parameter |
Waist radius [mm] |
Beam radius [mm] |
|||
qx |
qy |
W0x |
W0y |
Wx |
Wy |
|
Fiber coupler |
0 + 0.723393i |
0.350 |
0.350 |
|||
L1 (Input) |
0.095 + 0.723393i |
0.350 |
0.353005 |
|||
L1 (Output) |
-0.108744 + 0.016016i |
0.520787 |
0.357411 |
|||
L2 (Input) |
0.759744 + 0.016016i |
0.520787 |
2.470960 |
|||
L2 (Output) |
-0.699938 + 36.041929i |
2.470500 |
2.470966 |
|||
L3 (Input) |
1.324938 + 36.041929i |
2.470500 |
2.472169 |
|||
L3 (Output) |
-0.973537 + 0.026516i |
0.670087 |
2.461182 |
|||
SR2 (AR) |
1.143463 + 0.026516i |
0.670087 |
2.890476 |
|||
ITMy (HR) |
-1463.290098 + 730.177686i |
-1537.778046 + 823.090006i |
11.119753 |
11.806048 |
24.904507 |
25.018072 |
ETMy (HR) |
1536.709902 + 730.177686i |
1462.221956 + 823.090006i |
11.119753 |
11.806048 |
25.909775 |
24.068022 |
Beam radius from the fiber coupler to arm cavity
