40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  Coating Ring-down Measurement Lab elog  Not logged in ELOG logo
Entry  Fri May 20 15:18:58 2016, Gabriele, Optics, Design, Optical levers layout crime_v1.pdf
    Reply  Sun May 22 23:40:45 2016, Gabriele, Optics, Design, Optical levers layout crime_v1.pdf
Message ID: 17     Entry time: Sun May 22 23:40:45 2016     In reply to: 16
Author: Gabriele 
Type: Optics 
Category: Design 
Subject: Optical levers layout 

An improved design is attached. I modified the input telescope to avoid using shor focal length lenses, to make it less critical, and to reduce the beam spot radius at the QPD to 0.5 mm.

Quote:

Attached a first layout of the optical lever systems. The beam spot radius on the QPD is about 0.8 mm, and the lever arm length is of the orer of 1.4-1.5 m for all four beams.

 

 

Attachment 1: crime_v1.pdf  113 kB  | Hide | Hide all
crime_v1.pdf
ELOG V3.1.3-