block diagram: linelength.pdf
phase noise measurements
reference signal sent to receiver through... | optical power
at photodiode |
Psig/Pnoise | phi_rms | screen dump |
coax | -- | 16.2 dB | .110 radians | scren021.gif |
2.2 km optical fiber | -1.6 dBm | 15.7 dB | .116 radians | scren038.gif |
2.2 km optical fiber | -6 dBm | 15.2 dB | .123 radians | scren037.gif |
2.2 km optical fiber | -9 dBm | 13.8 dB | .145 radians | scren036.gif |
hardware block diagram: linelength.pdf