1 / 9

LIGO-G030643-00-Z

High Power Test Facility Report David McClelland, Bram Slagmolen, John Jacobs ACIGA LSC Meeting, November 203. LIGO-G030643-00-Z. Purpose. Diagnose cavity operation, stability and dynamics at A/LIGO circulating power (~ 1MW) Investigate thermal deformation and control in high power cavities

essiet
Télécharger la présentation

LIGO-G030643-00-Z

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. High Power Test Facility ReportDavid McClelland, Bram Slagmolen, John JacobsACIGALSC Meeting, November 203. • LIGO-G030643-00-Z

  2. Purpose • Diagnose cavity operation, stability and dynamics at A/LIGO circulating power (~ 1MW) • Investigate thermal deformation and control in high power cavities • Investigate ‘cold’ lock up to full operating power, including changes to control and alignment signals • field test a high power (>100 W) laser. • field test high power conditioned input optics • validate optical cavity modelling codes • integrate a high power laser system with a high power handling input optics system, a core optics system and a high power photo detection system.

  3. Status • Major funding commenced January 2002 • Staff: • 1 Res. Fellow; 1 Engineer; 5 techs; grad students; academic staff; LIGO 3 person months p.a. • LIGO commitment: • core (2) and PR & MC optics; Suspensions and controllers; high power optical modulators, isolators. • Completed • Central laboratory end stations at 80m + pipe + vacuum • 1 vacuum chamber processed • Laboratory has now gone clean • Current • Slagmolen, Jacobs

  4. Optical Design • Rationale • Should be as A/LIGO like as possible • Input power, circulating power, spot sizes, cavity stability (g factors), cavity lengths • Allow results to apply to A/LIGO • Simple scaling • Model validation

  5. Step 1: arm cavitySee Bram, John 80m ~ kWatts - 80 m stable cavity (g1 g2 > 0.8?) - 10 W laser - include thermal readout; AOC Step 2: - reverse ITM - increase laser power, 50W?

  6. Steps 3: PR arm cavity ~80m ~ 10m 125 W ~ 830 kW ~ 2.1 kW

More Related