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| Coating Ring-down Measurement Lab elog |
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Message ID: 17
Entry time: Sun May 22 23:40:45 2016
In reply to: 16
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| Author: |
Gabriele |
| Type: |
Optics |
| Category: |
Design |
| Subject: |
Optical levers layout |
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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: |
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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.
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