Products > Test Equipment
Show us your square wave
bson:
--- Quote from: Keysight DanielBogdanoff on March 07, 2019, 12:31:16 am ---It's our calibration pulse, so essentially the fastest edge we can muster. It's a laser - it turns out optical is much easier at these frequencies.
--- End quote ---
That's pretty incredible! :-+
Are there complete optical front ends for the UXR series?
tggzzz:
--- Quote from: Keysight DanielBogdanoff on March 07, 2019, 12:31:16 am ---
--- Quote from: HighVoltage on March 06, 2019, 10:34:48 am ---
WOW!
That would be a scope for Wave 2019!
What pulse generator are you using for this?
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It's our calibration pulse, so essentially the fastest edge we can muster. It's a laser - it turns out optical is much easier at these frequencies.
--- End quote ---
Well, 110GHz is within a factor of 3 of being out of RF bands and into the IR bands!
David Hess:
NIST used what was effectively an optically driven sampling oscilloscope as their reference for calibrating pulse generators and I assume they still have it. I always assumed HP/Agilent/Keysite had something similar to use in-house. I think Tektronix sent their pulse reference to NIST for calibration.
At lower frequencies, low being up to 10s of GHz, it is possible to use 3 sampling heads to calibrate each other without any outside reference by measuring their kick-out pulses which are otherwise just annoying during normal use.
Electro Fan:
--- Quote from: Keysight DanielBogdanoff on March 06, 2019, 06:48:44 am ---So, not infinite bandwidth but...
how about 3.5 ps edge @ 113 GHz realtime bandwidth? >:D :popcorn:
--- End quote ---
Wow - very cool and Thanks/Congrats to Daniel and Keysight for sharing!
I think that beats the previous best posted around here by over 10 ps. We are now within less than 4 ps of seeing our first sub-picosecond rise time. Maybe Keysight or someone has something laying around that can do that..... :)
Actually, we might only be about 2.5 ps away as under 1 ps would maybe qualify as sub PS? :)
Electro Fan:
Probably should go for the extra ~3.5 ps and get firmly into the realm of 3 digit femto seconds.
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