nir3k

_data/topnav.yml

@@ -18,8 +18,8 @@ topnav_dropdowns:
           url: /cacao_about.html
     - title: Examples
       folderitems:
-        - title: cacao by example
-          url: /cacao_examples.html
+        - title: Subaru-AO3kNIRpyr
+          url: /AOsystem_SubaruNIR3k.html
     - title: Tech Notes
       folderitems:
         - title: Tech Notes

pages/AOsystems/AOsystem_SubaruNIR3k.md

@@ -0,0 +1,273 @@
+---
+title: Subaru NIR 3k system (AO3kNIR)
+keywords: AOsystem
+last_updated: Jun 24, 2024
+tags: [AOsystem]
+summary: "Subaru Telescope AO3k system, near-IR pyramid WFS"
+sidebar: examples_sidebar
+permalink: AOsystem_SubaruNIR3k.html
+folder: 
+---
+
+## 1. System Overview
+
+AO3kNIR uses a near-IR pyramid WFS to drive a 64x64 magnetic DM (ALPAO DM3228).
+
+
+
+## 2. System Calibration
+
+
+System calibration is done in three main steps:
+- Acquire respone matrix using Hadamard pokes, decode to zonal space
+- Construct modal response matrix for tip, tilt, focus, astigmatism and Fourier modes
+- Construct the control matrix by blocks of spatial frequency
+
+This process may need to be repeated to iterately flatten the wavefront and acquire a high quality calibration around the flat wavefront point.
+
+
+{% include warning.html content="
+Take a dark before starting calibration, as the detector dark changes
+" %}
+
+
+### 2.1. Setup
+
+Set modulation to 500 Hz to improve system linearity.
+
+The WFS acquisition process should be set to subtract dark and normalize signal. Initially, turn off reference subtraction:
+
+```bash
+cacao-fpsctrl setval acquWFS comp.darksub ON
+cacao-fpsctrl setval acquWFS comp.WFSnormalize ON
+cacao-fpsctrl setval acquWFS comp.compWFSmask OFF
+cacao-fpsctrl setval acquWFS comp.WFSrefsub OFF
+```
+
+Align the WFS so that the flux is equally distributed between the 4 pupil images. Example commands:
+
+```bash
+# phi is +X direction
+irwfs_steering phi push -0.01
+# theta is +Y direction
+irwfs_steering theta push 0.005
+```
+
+
+
+### 2.2. Acquiring response matrix
+
+
+
+Use amplitude 0.005 to ensure WFS linearity, and set NBexl to 5 to give sufficent time for DM to settle after pokes. Response matrix acquisition takes about 15mn.
+
+```bash
+cacao-fpsctrl setval measlinresp ampl 0.005
+cacao-fpsctrl setval measlinresp timing.NBave 5
+cacao-fpsctrl setval measlinresp timing.NBexcl 5
+cacao-aorun-030-acqlinResp -n 8 HpokeC
+```
+
+The Hadamard response matrix is then decoded to zonal space:
+
+```bash
+cacao-aorun-031-RMHdecode
+```
+
+
+
+
+
+
+```bash
+cacao-aorun-028-mkZFmodes -c0 0 -c1 32 -c 50 -ea 2.0 -t 1.0 -a 0.3
+```
+
+
+
+```bash
+#!/usr/bin/env bash
+
+SVDl100=${1:-"06"}
+MARGMODE=${2:-1}
+
+# 1: always marginalize against TT in DM space
+
+
+
+SVDlim="0.${SVDl100}"
+
+echo "SVDlim = ${SVDlim}"
+
+# 0.08  1745
+# 0.10	1535
+# 0.12  1390
+
+
+WHICH_MARG="-marg"
+MARGTT="-margDM 0:1"
+margstring="margDM01-margWFS"
+
+
+
+
+if [[ ${MARGMODE} -eq 1 ]]; then
+echo "MARGMODE = 1"
+WHICH_MARG="-marg"
+MARGTT="-margDM 0:1"
+margstring="margDM01-margWFS"
+fi
+
+
+if [[ ${MARGMODE} -eq 2 ]]; then
+echo "MARGMODE = 2"
+WHICH_MARG="-marg"
+margstring="margWFS"
+fi
+
+if [[ ${MARGMODE} -eq 3 ]]; then
+echo "MARGMODE = 2"
+WHICH_MARG="-margDM"
+margstring="margDM"
+fi
+
+
+
+SAVEDIR="calib/svd${SVDl100}-${margstring}/"
+echo "SAVEDIR : ${SAVEDIR}"
+
+
+
+if [ ! -d ${SAVEDIR} ]; then
+
+cacao-fpsctrl setval compstrCM svdlim ${SVDlim}
+
+# Make T CM
+cacao-aorun-039-compstrCM -mb 0 -mr 1:1
+
+# Make T CM
+cacao-fpsctrl setval compstrCM svdlim ${SVDlim}
+cacao-aorun-039-compstrCM -mb 1 -mr 2:2
+
+# make LO CM
+cacao-fpsctrl setval compstrCM svdlim ${SVDlim}
+
+if [[ ${MARGMODE} -eq 1 ]]; then
+cacao-aorun-039-compstrCM -mb 2 -mr 3:12 ${MARGTT}
+else
+cacao-aorun-039-compstrCM -mb 2 -mr 3:12 ${WHICH_MARG} 0:1
+fi
+
+
+
+# make LO CM
+cacao-fpsctrl setval compstrCM svdlim ${SVDlim}
+
+if [[ ${MARGMODE} -eq 1 ]]; then
+cacao-aorun-039-compstrCM -mb 3 -mr 13:50 ${WHICH_MARG} 2 ${MARGTT}
+else
+cacao-aorun-039-compstrCM -mb 3 -mr 13:50 ${WHICH_MARG} 0:1:2
+fi
+
+
+
+# make MO CM
+cacao-fpsctrl setval compstrCM svdlim ${SVDlim}
+
+if [[ ${MARGMODE} -eq 1 ]]; then
+cacao-aorun-039-compstrCM -mb 4 -mr 51:200 ${WHICH_MARG} 2:3 ${MARGTT}
+else
+cacao-aorun-039-compstrCM -mb 4 -mr 51:200 ${WHICH_MARG} 0:1:2:3
+fi
+
+
+
+# make HO CM
+cacao-fpsctrl setval compstrCM svdlim ${SVDlim}
+
+if [[ ${MARGMODE} -eq 1 ]]; then
+cacao-aorun-039-compstrCM -mb 5 -mr 201:1000 ${WHICH_MARG} 2:3:4 ${MARGTT}
+else
+cacao-aorun-039-compstrCM -mb 5 -mr 201:1000 ${WHICH_MARG} 0:1:2:3:4
+fi
+
+
+
+# make HHO CM
+cacao-fpsctrl setval compstrCM svdlim ${SVDlim}
+
+if [[ ${MARGMODE} -eq 1 ]]; then
+cacao-aorun-039-compstrCM -mb 6 -mr 1001:5029 ${WHICH_MARG} 2:3:4:5 ${MARGTT}
+else
+cacao-aorun-039-compstrCM -mb 6 -mr 1001:5029 ${WHICH_MARG} 0:1:2:3:4:5
+fi
+
+
+# merge CMs
+cacao-aorun-039-compstrCM -mbm 0:1:2:3:4:5:6
+
+
+
+
+
+mkdir -p ${SAVEDIR}
+cp conf/CMmodesDM.fits ${SAVEDIR}
+cp conf/CMmodesWFS.fits ${SAVEDIR}
+cp conf/CMmodesDM.xp.fits ${SAVEDIR}
+cp conf/CMmodesWFS.xp.fits ${SAVEDIR}
+
+else
+
+echo "DIRECTORY ${SAVEDIR} exists"
+
+cp ${SAVEDIR}/CMmodesDM.fits ./conf/
+cp ${SAVEDIR}/CMmodesWFS.fits ./conf/
+cp ${SAVEDIR}/CMmodesDM.xp.fits ./conf/
+cp ${SAVEDIR}/CMmodesWFS.xp.fits ./conf/
+
+fi
+
+
+milk-FITS2shm ./conf/CMmodesDM.fits aol7_DMmodes
+milk-FITS2shm ./conf/CMmodesWFS.fits aol7_modesWFS
+
+cacao-fpsctrl runstop wfs2cmodeval 0 0
+cacao-fpsctrl runstop mfilt 0 0
+cacao-fpsctrl runstop mvalC2dm 0 0
+
+cacao-fpsctrl confstop wfs2cmodeval 0 0
+cacao-fpsctrl confstop mfilt 0 0
+cacao-fpsctrl confstop mvalC2dm 0 0
+
+sleep 2
+
+# START
+
+cacao-fpsctrl confstart wfs2cmodeval 0 0
+sleep 1
+cacao-fpsctrl runstart wfs2cmodeval 0 0
+
+sleep 2
+
+cacao-fpsctrl confstart mfilt 0 0
+sleep 1
+cacao-fpsctrl runstart mfilt 0 0
+#cacao-fpsctrl setval mfilt loopON ON
+#cacao-fpsctrl setval mfilt loopgain 0.0
+
+
+sleep 2
+
+cacao-fpsctrl confstart mvalC2dm 0 0
+sleep 1
+cacao-fpsctrl runstart mvalC2dm 0 0
+
+echo "Done"
+
+
+```
+
+
+
+
+{% include links.html %}