I put one Newport Dielectric Mirror, Laser Line, 25.4 mm, λ/10, 1520-1580 nm (10D20DM.8) each in the crusher and piezo bowtie subassemblies. The piezo subassembly also has a Clean Room Viton Fluoroelastomer O-Rings, Chemical-Resistant, 1/16 Fractional Width, Dash Number 020, 1309N22, from McMaster. After compressing the piezo and the o-ring by threading in the SM1 ring, I backed off the screws that hold the piezo.

The subassemblies themselves are mounted to test. I set up a Michelson Interferometer to test the piezo. The piezo leads are connected to a BNC, with the positive lead in the center of the BNC and the negative lead to ground. A Thorlabs MDT693B - 3-Channel, Open-Loop Piezo Controller is also ready to be used. The output port of the Michelson is a 1550 nm photodiode.

The crusher is mounted on a bowtie cavity and the beam profiler is ready to be used there.

Right now, I am waititng on a Thorlabs order I placed today to get fiber outputs mounted into SM1 rings.