The documentation of the new compressor can be found here.

The new compressor layout is shown in Fig. 1

Figure 1: new compressor layout

Preparation

• bring viewing cards: sensitive IR card (with both orange and white ones), and orange paper card.
• 120 Hz MPA1 amplified beam: assuming you have done the alignments of MPA2, and the big x3 telescope. you have amplified MPA2 and satisfied the energy and mode. Now you turn off the GAIA and align with MPA1 amplified 120Hz beam. 
• Open motor control: the remote motion controls for two gratings and three 5" mirror.
  • The controls of M1x, M1y, M2x, M2y, M3x, M3y, G1 rotation, and G2 rotation are on Newport XPS_1 (mcn-mec-las1).
  • The control of G2 translation is on Newport XPS_2 (mcn-mec-las2)
• Open cameras: open the following camviews
  • CompInNF
  • CompInFF
  • CompG2
  • CompOutNF
  • CompOutFF

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Figure 2 The controls of M1x, M1y, M2x, M2y, M3x, M3y, G1 rotation, and G2 rotation are on Newport XPS_1 (mcn-mec-las1). The control of G2 translation is on Newport XPS_2 (mcn-mec-las2)

Alignment

Assuming x3 telescope has aligned and the beam is at the center of CompInFF.

• Slightly close the iris right before the periscope behind the energy limiter.
• Adjust T3 to center i0. CompInNF can be used to check the alignment. When it's done, make sure the beam is in the center of CompInNF.  
• Adjust M0 to center i1 and i2. i1 and i2 should be both good to make sure the beam enters the compressor at the correct angle. IR card or CompOutNF can be used to check the alignment. When done remove both irises. 
• Insert the plum bob at the place of i2. the shadow of in and out should overlap with each other. If it's off, consider re-align the compressor. The detailed procedure is here.
• Adjust M1 and M2 to center the beam on i3, i4, and i5. When the beam is centered on i3 and i4, i5 should be centered too. IR card or CompOutNF can be used to check the alignment. When done remove all the irises. 
• Move the imager mirrors to center the beam in CompOutFF and  CompOutNF. 
• Adjust the M3 mirror to center the beam to the chamber crosshairs. when it's done, check i5 and move it if needed. 

On-line diagnostics

• The camera CompG2 is looking at the surface of the second grating. For alignment check, it can confirm both top and bottom beams on G2 are centered on crosshairs set by the camview.  Additional information like spectral profile can be obtained by using the lineout function in the camview. 
• TIPA measurement: the TiPA hardware is on top of OPA (Fig. 1) with fourmirrors for adjusting the beam into TiPA. The TiPA software is in Laptop PC97017 located on top of GAIA. A USB cable is connecting the camera to laptop. This laptop has both TiPA and Spider. The password is on the laptop. (Fig. 3b)
• Glass correction: with TiPA real-time readout, you can adjust the compressor distance (Newport XPS 2: Comp2 G trans) to find the shortest pulse. Once you achieve the shortest pulse duration in the vacuum, the real shortest pulse should be the current compressor position - 0.7mm. This is to account for the glass dispersion. If you achieve the shortest pulse duration in the air, the real shortest pulse in the vacuum should be the current compressor position - 1.4mm. This is to account for the glass dispersion and air. (Fig. 3c) The air dispersion is not so much. It's mainly by mechanical bending of the breadboard. The detailed measurements were done and shown in Fig. 3c.