Sudarshan K, Rick S, Darkhan T. Pcal beam power measurements were taken at EndY. Measurements inside TX module: OFS PD outputs 3720 counts, 2.25 V. TX PD outputs 1592 counts. Laser power: 2 W. Servo loop is open. Heat sink is not installed. Power measurements before any optics (after the laser shutter) at different voltages: 1.05 W at 3.0 V 1.35 W 3.5 V 1.60 W 4.0 V 1.86 W 4.5 V 2.07 W 5.0 V Power measurements, laser power set at 5 V: OFS PD: 9.06 V 14850 cts. 2.72 mW TX PD: 4.2 V 6930 cts. 10.1 mW Power meter is used with OD1. NE01A-B + NE02A-B attenuators attached to OFS PD. Power reading inside of TX module between two lenses (combined power of two beams going to ETMY): 1.69 W. Measurements of two beams at the TX module: Inner beam: 844 mW Outer beam: 824 mW Measurements of two beams at the RX module: Inner beam: 827 mW Outer beam: 810 mW Both beams combined: 1.63 W RX PD mon (both beams combined) output: 10.3 V Pictures of Pcal spots on ETMY (f/22, 30 sec): LHOetm_0250.jpeg - inner beam only on ETMY (outer beam is blocked) LHOetm_0251.jpeg - outer beam only on ETMY LHOetm_0252.jpeg - both beams We left Pcal laser ON, beams on ETMY.