|
40m
QIL
Cryo_Lab
CTN
SUS_Lab
TCS_Lab
OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
|
| 40m Log |
Not logged in |
 |
|
|
 Thu Jul 9 17:12:52 2020, gautam, Update, BHD, In-air BHD 
|
 Tue Jul 14 15:29:25 2020, gautam, Update, BHD, In-air BHD - DCPD amplifier noise
| |
Wed Jul 15 19:11:40 2020, gautam, Update, BHD, In-air BHD - alignment into OMC
| |
Thu Jul 16 01:12:22 2020, gautam, Update, BHD, In-air BHD - preparing the LO path
| |
Sun Jul 19 15:40:15 2020, gautam, Update, BHD, In-air BHD - CDS and wiring summary
| |
Wed Jul 29 11:57:59 2020, rana, Update, BHD, In-air BHD - CDS and wiring summary
| |
Mon Jul 20 17:55:15 2020, gautam, Update, BHD, In-air BHD - preparing the LO path
| |
Tue Jul 21 00:30:24 2020, gautam, Update, BHD, In-air BHD - LO RIN
|
|
|
Message ID: 15479
Entry time: Tue Jul 14 15:29:25 2020
In reply to: 15464
|
| Author: |
gautam |
| Type: |
Update |
| Category: |
BHD |
| Subject: |
In-air BHD - DCPD amplifier noise |
|
|
For the first pass, it's probably easiest to use the existing DCPD amplifier. Looking at the gain and noise performance in Attachment #1, seems totally fine, the electronics noise will not be limiting if we have ~10mW of LO power. I assumed a transimpedance resistor of 1 kohm, and all other numbers as on the schematic (though who knows if the schematic is accurate). The noise should be measured to confirm that the box is performing as expected... |
|
|