Simulation investigation of mode hopping in the H1 signal recycling cavity

Document #:

LIGO-T1500230-v3

Document type:

T - Technical notes

Abstract:

During commissioning of the H1 dual-recycled Michelson interferometer (DRMI), the signal recycling cavity
(SRC) was observed to exhibit the phenomenon known commonly as mode-hopping. This note describes a simulation investigation into the causes of mode hopping in the H1 DRMI, and explores some methods for mitigating the associated problems.

Files in Document:

• SRC_mode_hopping_note.pdf (2.5 MB)

Topics:

• Sensing and Control
• Commissioning
• Core Optics

Authors:

• Paul Fulda
• Daniel Brown
• Charlotte Bond
• Kiwamu Izumi
• Lisa Barsotti
• Andreas Freise

Keywords:

mode hopping DRMI

Notes and Changes:

v3: Changes to text
v2: Small change to table of contents

Referenced by:

• LIGO-G1500645-v3: Sensing and control problems in low finesse cavities, or "how (not) to hop"