Phase Noise Measurement

We measured the phase noise with FSWP from “Rohde und Schwarz”. Manual:fswp_dat-sw_en_3607-2090-22_v0400.pdf

Information about the measurements is in the ResLab book on the pages 134 - 136 (date: 18.08.2016).

measurement:

each device was measured directly behind the output, except it's mentioned

use SMA-cables instead of BNC-cables if possible, thighten the SMA-plug with an open-end wrench, use golden SMA-I-Connection (better quality)

don't wiggle the cable → results in noise in the range of 1Hz - 200Hz

let the cable swing off bevor starting the measurement

check before the measurement, if the dBm number isn't too high for the device

analysis method:

Program “phasenoise_combined.nb” is located in the AFS

Copy the program into the folder with the data, which needs to be analyzed and start the program

physical units:

dB: epresses the ratio of two values of a physical quantity

dBc (decibels relative to the carrier): power ratio of a signal to a carrier signal, expressed in decibels(dB)

dBm: abbreviation for the power ratio in decibels (dB) of the measured power referenced to one milliwatt

<hi #ff7f27> - Wie hatten wir gemessen? Was verwendet?

Klaus Zettel verwenden

Wie hatten wir die Datei gespeichert?

Was is dB, dBm, dBc und wie hängt W damit zusammen?

Frequenzen und dBm-Zahl zu jeder Messung angeben. Gibt es noch andere wichtige Daten in der Datei?</hi>

Beim nächsten mal Messen: klären wie gut die Geräte bei anderen Frequenzen funktionieren? Kabel überprüfen, Frequenzen hinter Originalkabel bis hin zum zum Beipsiel AOM prüfen, Steckverbinder wie BNC-I überprüfen

AtomLab

atomlab.pdf

10mhz atomslab.DAT: 9.999.999,686110 Hz [18.08.2016]

aom rf atomlab nach abschwaecher.DAT: 87.169.997,264110 Hz [22.08.2016]

aom rf atomlab nach kabelende.DAT: 87.169.997,256448 Hz [22.08.2016]

aom rf atomlab nach verstaerker.DAT: 87.169.997,268579 Hz [22.08.2016]

wutz.DAT: 104.673.996,567979 Hz [22.08.2016]

Resonator 1

r1.pdf

chlocksynth.DAT: 87.169.997,232243 Hz [18.08.2016]

Rb clock

rb_clock.pdf

rb 10 mhz links.DAT: 9.999.999,682126 Hz [22.08.2016]

rb 10 mhz rechts.DAT: 9.99.999,681785 Hz [22.08.2016]

rb 5 mhz 2.DAT: 4.999.999,836086 Hz [22.08.2016]

rb 5 mhz.DAT: 4.999.999,850747 Hz [22.08.2016]

fiber stabilization

fiber_stab.pdf

80 mhz.DAT: 79.110.997,503162 Hz [18.08.2016]

synth. fiber stab. ext. mod.DAT: 79.110.937,461429 Hz [22.08.2016]

synth.fiber stab. refext..DAT: 79.110.997,261913 Hz [22.08.2016]

Synthesizer von Q-Port

qport.pdf

qport internal.DAT: 987.732.665,994588 Hz [22.08.2016]

qport 10mhz ext. direkt stab. auf ocxo.DAT: 987.733.301,133802 Hz [22.08.2016]

qport 10mhz ext.internal.DAT: 987.733.301,151171 Hz [22.08.2016]

Resonator 2

r2.pdf

eom r2 sznth.DAT: 16.200.005,142169 Hz [24.08.2016]

synth. r2 aom refext..DAT: 77.099.997,538021 Hz [22.08.2016]

synth. r2 aom refext. richtig.DAT: 77.099.997,514594 Hz [22.08.2016]

Resonator 1 and 2

r1-r2.pdf

synt. r1-r2 10mhz ext. direkt.DAT: 340.999.989,006932 Hz [22.08.2016]

synz. r1-r2 10mhz ext. indirekt.DAT: 340.99.989,008668 Hz [22.08.2016]

synt. r1-r2 internal.DAT: 341.000.016,201303 Hz [22.08.2016]

rep rate

rep_rate.pdf

synth. rep rate 10mhz ext. direkt.DAT: 1.000.000.248,806976 Hz [22.08.2016]

synth. rep rate 10mhz ext. direkt with 10mhz with real cable.DAT: 1.000.000.249,473547 Hz [22.08.2016]

synth. rep rate 10mhz ext. indirekt.DAT: 1.000.000.248,770376 Hz [22.08.2016]

synth. rep rate 10mhz ext. indirekt with real cable.DAT: 999.997.802,893996 Hz [22.08.2016]

synth. rep rate 10mhz ext. indirekt with real cable with 10mhz.DAT: 1.000.000.249,567324 Hz [22.08.2016]

synth. rep rate internal.DAT: 1.000.000.282,423948 Hz [22.08.2016]

PDH

pdh.pdf

pdhlock2.DAT: 13.810.003,192828 Hz [23.08.2016]

pdhlock.DAT: 13.817.786,393137 Hz [23.08.2016]

pdhlock int.DAT: 13.810.004,243357 Hz [23.08.2016]

pdhunlocked.DAT: 13.60.299,455637 Hz [23.08.2016]

10 MHz distribution

10_mhz_distribution.pdf

10mhz atomslab.DAT: 9.999.999,686110 Hz [18.08.2016]

10mhz k&k verteiler.DAT: 9.999.999,651353 Hz [18.08.2016]

10mhz ocxo stab indirect synth 2.DAT: 9.999.999,673212 Hz [22.08.2016]

10mhz ocxo stab synth.DAT: 9.999.999,673767 Hz [22.08.2016]

ocxo 3.DAT: 4.999.999,834145 Hz [22.08.2016]

10 MHz synthesizer

10_mhz_synthesizer.pdf

10mhz internal synth 2.DAT: 10.000.000,225102 Hz [22.08.2016]

10mhz ocxo stab indirect synth 1.DAT: 9.999.999,677410 Hz [22.08.2016]

10mhz ocxo stab synth 2.DAT: 9.999.999,672932 Hz [22.08.2016]

10mhz ocxo stab synth 3.DAT: 9.999.999,672579 Hz [22.08.2016]

10mhz open synth 2.DAT: 9.999.474,907956 Hz [22.08.2016]

10mhz selbst.DAT: 9.99.999,650255 Hz [18.08.2016]

10mhz selbst no others.DAT: 9.999.999,640838 Hz [18.08.2016]

10MHz OCXO doubling

5MHz moving cable test

5mhz_moving_cable_test.pdf

5mhz moving cable test.DAT: 4.999.999,822782 Hz [18.08.2016]

5mhz without moving.DAT: 4.999.999,825716 Hz [18.08.2016]

5MHz to 10MHZ OCXO

5mhz-ocxo_the_way_to_10mhz.pdf

5mhz + amp.DAT: 5.000.000,518799 Hz [18.08.2016]

5mhz.DAT: 4.999.999.825716 Hz [18.08.2016]

5mhz + doubler + amp.DAT: 9.999.999,658937 Hz [18.08.2016]

5mhz + doubler.DAT: 9.999.999,651068 Hz [18.08.2016]

5mhz + splitter.DAT: 4.999.999,820720 Hz [18.08.2016]

5MHz to 10MHz OCXO again

5mhz_to_10mhz_ocxo_again.pdf

after ocxo and doubler.DAT: 10.000.000,353714 Hz [22.08.2016]

after ocxo.DAT: 4.999.999,838434 Hz [22.08.2016]

ocxo 3.DAT: 4.999.999,834145;Hz [22.08.2016]

5MHz OCXO with/without original power supply

5mhz_ocxo_with_without_original_power_supply.pdf

5mhzrg58smaocxo.DAT: 4.999.999,836230 Hz [18.08.2016]

5mhzrg58smaocxo w k+k supply ext supply.DAT: 4.999.999,830501 Hz [18.08.2016]

5mhzrg58smaocxo wo k+k supply ext supply.DAT: 4.999.999,824645 Hz [18.08.2016]

10MHz amplifier

10_mhz_amplifier.pdf

10mhz amp.DAT: 9.999.999,652707 Hz [18.08.2016]

10mhz amp mass_002.DAT: 9.999.999,686110 Hz [19.08.2016]

10mhz amp mass.DAT: 9.999.999,651541 Hz [18.08.2016]