LIGO initial mode cleaner

13 Março 2023, 10:00 • José Manuel Rebordão

Modification of gaussian beam parameters by lenses / mirrors (Saleh)

The concept of mode-matching.

Optical architecture of LIGO: PSL (pre-stabilised laser system and IO (Input Optics).

Presentation of Nuno Covas: LIGO Input Mode Cleaner: main functions of the IMC, design of the resonant cavity, most relevant parameters. How the IMC can be used to filter out high-order Hermite Laguerre modes.

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LIGO Power Recycling Cavity (PRC)

Pound-Drever-Hall (PDH) control technique