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  40m Log, Page 32 of 344  Not logged in ELOG logo
    Reply  Thu Sep 15 21:12:53 2022, Paco, Update, BHD, LO phase "dc" control lophase_oltf.pdflophase_noise_spectra.pdf
Entry  Tue Sep 20 15:40:07 2022, yehonathan, Update, BHD, Trying doing AC lock Screenshot_2022-09-20_15-38-44.png
Entry  Wed Sep 21 17:01:59 2022, Paco, Update, BHD, BH55 RFPD installed - part I IMG_3760.jpegIMG_3764.jpeg
    Reply  Thu Sep 22 19:51:58 2022, Anchal, Update, BHD, BH55 LSC Model Updates - part II 
    Reply  Fri Sep 23 14:10:19 2022, Radhika, Update, BHD, BH55 RFPD installed - part I IMG_3766.jpegIMG_3770.jpegIMG_3773.jpeg
    Reply  Fri Sep 23 18:31:46 2022, rana, Update, BHD, BH55 RFPD installed - part I 
    Reply  Fri Sep 23 19:04:12 2022, Anchal, Update, BHD, BH55 LSC Model Updates - part III 
    Reply  Mon Sep 26 11:39:37 2022, Paco, Update, BHD, BH55 RFPD installed - part II PXL_20220926_175010061.MOTION.jpgBH55_Transimpedance_Measurement.pdf
    Reply  Tue Sep 27 10:50:11 2022, Paco, Update, BHD, calibrated LO phase noise lo_phase_asd.pdf
    Reply  Wed Sep 28 16:37:26 2022, Paco, Update, BHD, calibrated LO phase noise; update lo_phase_asd.pdf
    Reply  Wed Sep 28 21:54:08 2022, Paco, Update, BHD, calibrated LO phase noise; update dcpd_phase_asd.pdflo_phase_asd.pdf
    Reply  Thu Sep 29 18:01:14 2022, Anchal, Update, BHD, BH55 LSC Model Updates - part IV 
    Reply  Fri Sep 30 20:18:55 2022, Paco, Update, BHD, LO phase noise with different actuation points BHDC_asd_actuation_point.png
Entry  Mon Oct 3 13:11:22 2022, Yehonathan, Update, BHD, Some comparison of LO phase lock schemes MICH_sens_vs_LO_phase.pdfLO_phase_sens_vs_LO_phase_RF.pdfLO_phase_sens_vs_LO_phase_double_audio.pdf
    Reply  Mon Oct 3 15:19:05 2022, Paco, Update, BHD, LO phase noise and control after violin mode filters filters_c1sus_lo1_lsc.pngBHDC_asd_act.pngboosted_lo_phase_control.png
    Reply  Thu Oct 6 11:12:14 2022, Anchal, Update, BHD, BH55 RFPD installation complete 
Entry  Thu Oct 6 18:50:57 2022, Anchal, Summary, BHD, BH55 meas diff angle estimation and LO phase lock attempts 
Entry  Fri Oct 14 17:04:28 2022, Radhika, Update, BHD, BH55 Q abnormality + fix IMG_3805.jpegIMG_3807.jpegBH55_IQDemodMeasuredDiff_1349737773.png
    Reply  Mon Oct 17 20:04:16 2022, Anchal, Update, BHD, BH55 RF output amplified BH55_RF_Amp_Working.pngrn_image_picker_lib_temp_1b072d08-3780-4b1d-9325-5795ed099d3d.jpgrn_image_picker_lib_temp_9d7ed3c0-7ff0-4ff7-9349-0211be397dc5.jpgrn_image_picker_lib_temp_05da14e1-eae0-4a84-8761-1c42b122cb1b.jpg
    Reply  Mon Oct 17 22:27:25 2022, rana, Update, BHD, BH55 RF output amplified 
    Reply  Wed Oct 19 11:09:20 2022, Radhika, Update, BHD, BH55 RF output amplified IMG_3840.jpegIMG_3847.jpeg
    Reply  Fri Oct 21 10:37:36 2022, Anchal, Summary, BHD, BH55 phase locking efforts 
    Reply  Fri Oct 21 16:15:10 2022, yuta, Summary, BHD, LO phase locking with BH55 audio dither trials Screenshot_2022-10-21_15-33-18_LO_OLTF_LO1_BH55_Q.pngScreenshot_2022-10-21_15-42-50_LO_OLTF_LO1_BHDCDIFF.pngScreenshot_2022-10-21_15-44-53_MICH_OLTF.pngScreenshot_2022-10-21_15-50-43_LO_OLTF_LO1_BH55_Q_MICH.pngScreenshot_2022-10-21_16-11-16.png
    Reply  Sat Oct 22 21:36:28 2022, rana, Summary, BHD, BH55 phase locking efforts 
    Reply  Mon Oct 24 18:01:00 2022, Paco, Summary, BHD, BHD actuation measurements OLTF_LOPhaseLocking_ITMYSingleBounce.pngActuationRatio_ITMY_AS1_AS4_LO1_LO2.png
    Reply  Tue Oct 25 08:25:00 2022, JC, Update, BHD, BHD fringe aligned with reduced LO and AS beam clipping 
    Reply  Tue Oct 25 17:27:11 2022, Paco, Summary, BHD, LO phase control with RF + audio sidebands Screenshot_2022-10-25_17-36-45_LOPHASELOCKED.pngScreenshot_2022-10-25_17-33-33_LOPHASELOCKING_MICHBHD_ELP80_280HzDither.png
    Reply  Wed Oct 26 16:04:12 2022, Paco, Summary, BHD, LO phase control with RF + audio sidebands 
    Reply  Thu Nov 3 20:07:01 2022, Anchal, Summary, BHD, AS1 coil balancing required 
    Reply  Mon Nov 7 17:10:41 2022, Anchal, Summary, BHD, QPD installation seems like lost cause 
    Reply  Mon Nov 14 17:45:02 2022, yuta, Update, BHD, BHD DC PD unwhitening and removing cables to c1lsc Screenshot_2022-11-15_13-08-17.png
    Reply  Tue Nov 15 17:08:59 2022, Paco, Update, BHD, Request for estimates 
    Reply  Tue Nov 15 19:00:56 2022, yuta, Summary, BHD, MICH locked with balanced homodyne readout at some LO phase Screenshot_2022-11-15_18-34-25_MICHBHDLocked.pngScreenshot_2022-11-15_19-02-02_MICHLine.pngScreenshot_2022-11-15_18-38-20_BHDMICHOLTF.png
    Reply  Wed Nov 16 15:09:08 2022, yuta, Update, BHD, BHD fringe contrast measured with unwhitening filters ContrastMeasurements20221116_edited.pdf
    Reply  Wed Nov 16 18:41:17 2022, yuta, Summary, BHD, Optical gain calibrations for BHD MICH Screenshot_2022-11-16_18-57-12.pngScreenshot_2022-11-16_18-49-53_BHDMICHCalLines.pngLSC-AS55_Q_ERR_DQ_1352689642.png
    Reply  Thu Nov 17 14:12:58 2022, yuta, Summary, BHD, Optical gain calibrations for BHD MICH with lower UGF Screenshot_2022-11-17_14-39-17_MICHLOPHASEOLTF.pngScreenshot_2022-11-17_14-41-40_LowUGFConfiguration.png
    Reply  Thu Nov 17 20:02:10 2022, yuta, Summary, BHD, MICH optical gain measurements with different LO phases UncalibratedMICHOpticalGainVSLOphase20221117.pngCalibratedMICHOpticalGainVSLOphase20221117.png
    Reply  Fri Nov 18 13:05:00 2022, yuta, Summary, BHD, Gains adjusted for bandstop filters for BHD optics Screenshot_2022-11-18_13-16-31_AS1ViolinFilters.png
    Reply  Fri Nov 18 16:58:39 2022, yuta, Summary, BHD, Actuator calibrations for MICH BHD 7x
    Reply  Fri Nov 18 22:46:02 2022, yuta, Summary, BHD, MICH optical gain measurements with different LO phases, with signs UncalibratedMICHOpticalGainVSLOphase20221118.pngCalibratedMICHOpticalGainVSLOphase20221118.png
    Reply  Mon Nov 21 17:44:00 2022, yuta, Summary, BHD, MICH BHD displacement sensitivity with AS55_Q and BHD_DIFF Screenshot_2022-11-21_17-33-20_OLTF.pngScreenshot_2022-11-21_17-45-25_MICHBHDDisplacement.png
    Reply  Mon Nov 21 18:43:46 2022, yuta, Update, BHD, c1hpc and c1lsc modified to send BHD_DIFF and BHD_SUM Screenshot_2022-11-21_18-42-49_BHD.png
    Reply  Wed Nov 23 11:06:08 2022, Anchal, Update, BHD, c1hpc and c1sus modified to add BS dither and demodulation option 
    Reply  Wed Nov 23 12:58:33 2022, Yehonathan, Update, BHD, Some more calculations LO_phase_sens_vs_LO_phase_RF.pdfLO_phase_sens_vs_LO_phase_RF_fixed_demod.pdfLO_phase_sens_vs_MICH_Offset.pdf
    Reply  Wed Nov 23 14:59:11 2022, Paco, Summary, BHD, BHD_DIFF sensitivity to BS dither with MICH Offset BHDIFF_rand_SensvsMICHOffset.pdf
    Reply  Wed Nov 23 17:28:39 2022, Yehonathan, Update, BHD, Some more calculations Fields_at_BHDBS.pdf
    Reply  Wed Nov 23 20:58:23 2022, yuta, Summary, BHD, BHD_DIFF sensitivity to BS dither with MICH Offset with different BH55 demodulation phases BHDIFF_rand_SensvsMICHOffset_pydemod.pdfBHDIFF_rand_SensvsMICHOffset_pydemod_NoMICHinBH55Q.pdfBHDIFF_rand_SensvsMICHOffset_pydemod_BH55at70deg.pdfMICHBHD_BH55.pdf
    Reply  Mon Nov 28 16:53:22 2022, Anchal, Summary, BHD, F2A filters on LO1 LO2 AS1 and AS4 
Entry  Mon Nov 28 18:21:50 2022, Paco, Summary, BHD, BH44 prep 
    Reply  Tue Nov 29 15:32:32 2022, Anchal, Update, BHD, c1hpc model updates to support double audio dither Screenshot_2022-11-29_15-36-05.png
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