We checked the noise of the new YPcal laser.
Compared with the current laser, the noise level was found to be lower.
We also measured the open-loop transfer function.
A more detailed report of these measurements will be provided later.
I am attaching one of the measurement results from this work.
This is the noise measurement on the LPD (the photodiode located immediately after the laser head), comparing the original laser (= “old laser”) and the new laser. The results show that the new laser has approximately 10 times better noise performance.
(Other results, including noise measurements around the OFS and OLTF measurements, will be reported later.)
