Status of Laser Zentrum Hannover
Download
1 / 15

Laser Head - PowerPoint PPT Presentation


  • 91 Views
  • Uploaded on

Status of Laser Zentrum Hannover Laser Program for Advanced LIGO Maik Frede , Ralf Wilhelm and Carsten Fallnich Laser Zentrum Hannover LSC March 04 Livingston G040116-00-Z. Laser Head. new mechanical design new fiber bundle implemented pump light homogenization.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Laser Head' - inari


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Status of Laser Zentrum Hannover Laser Program for Advanced LIGOMaik Frede, Ralf Wilhelm and Carsten FallnichLaser Zentrum HannoverLSC March 04LivingstonG040116-00-Z


Laser head
Laser Head

  • new mechanical design

  • new fiber bundle

  • implemented pump light

  • homogenization



Efficiency of bifi compensation
Efficiency of Bifi.- Compensation

 100 % compensation


Comparison
Comparison

proof of concept: optimized design:

Output power: 97 W 114,5 W

M2x,y: 1.25 1.05

Birefringence Comp.: 95% 100%

opt. : 25% 25%

Polarization: >100:1 >100:1



4 head ring laser first results output power
4 head ring laserfirst results: output power

250

200

150

output power [W]

100

50

500

600

700

800

900

1000

1100

pump power [W]

 243 W output power with M2 < 3


4 head ring laserimprove beam quality with mode aperture

 213 W output power with M2 < 1.15


4 head ring laserTEM00-operation

 TEM00 operation with M2 < 1.15


4 head ring laserpower-noise


Advanced ligo conceptual design

Pound-Drever-Hall Injection-Locking

Advanced LIGO conceptual design

0.8W

12W


Advanced LIGO integrated front-end

800mW NPRO

12 W GEO 600

design

 12 -14 W single frequency M2 <1.05


Advanced LIGO high power slave

 213 W output power with M2 < 1.15


Summary
summary

  • high power slave-laser

    • output power: 213 W

    • beam quality, M2:< 1.15

    • polarization: > 100:1

    • optical efficiency: 23 %

  • front - end

    • components in place


Outlook to do
outlook / to do

  • optimizing the high-power slave resonator

  • finish work on front-end

  •  start injection-locking


ad