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https://github.com/Telecominfraproject/oopt-gnpy.git
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08b3a6cb33
Here the Fiber behaviour change because pch = signal + ase + nli is considered instead of just signal. This slightly changes the propagation results as more power is considered to be injected in the fiber span. All differences in tests are below 0.1 dB, with a few exceptions slightly higher. Change-Id: I5b2227ee036a26a11e13f3169e16868d70f0c457
2.2 KiB
2.2 KiB
Power mode is set to True
=> it can be modified in eqpt_config.json - Span
There are 1 fiber spans over 80 km between Site_A and Site_B
Now propagating between Site_A and Site_B:
Reference used for design: (Input optical power reference in span = 0.00dBm,
spacing = 50.00GHz
nb_channels = 76)
Channels propagating: (Input optical power deviation in span = 0.00dB,
spacing = 50.00GHz,
transceiver output power = 0.00dBm,
nb_channels = 76)
Input optical power reference in span = 0.00 dBm:
Transceiver Site_A
GSNR (0.1nm, dB): 40.00
GSNR (signal bw, dB): 35.92
OSNR ASE (0.1nm, dB): 40.00
OSNR ASE (signal bw, dB): 35.92
CD (ps/nm): 0.00
PMD (ps): 0.00
PDL (dB): 0.00
Latency (ms): 0.00
Actual pch out (dBm): 0.00
Fiber Span1
type_variety: SSMF
length (km): 80.00
pad att_in (dB): 0.00
total loss (dB): 17.00
(includes conn loss (dB) in: 0.50 out: 0.50)
(conn loss out includes EOL margin defined in eqpt_config.json)
reference pch out (dBm): -17.00
actual pch out (dBm): -17.00
Edfa Edfa1
type_variety: std_low_gain
effective gain(dB): 15.00
(before att_in and before output VOA)
tilt-target(dB) 0.00
noise figure (dB): 6.62
(including att_in)
pad att_in (dB): 0.00
Power In (dBm): 1.81
Power Out (dBm): 16.81
Delta_P (dB): -2.00
target pch (dBm): -2.00
actual pch out (dBm): -2.00
output VOA (dB): 0.00
Transceiver Site_B
GSNR (0.1nm, dB): 31.17
GSNR (signal bw, dB): 27.09
OSNR ASE (0.1nm, dB): 33.29
OSNR ASE (signal bw, dB): 29.21
CD (ps/nm): 1336.00
PMD (ps): 0.85
PDL (dB): 0.00
Latency (ms): 0.39
Actual pch out (dBm): 0.00
Transmission result for input optical power reference in span = 0.00 dBm:
Final GSNR (0.1 nm): 31.17 dB
(No source node specified: picked Site_A)
(No destination node specified: picked Site_B)
=> it can be modified in eqpt_config.json - Span
There are 1 fiber spans over 80 km between Site_A and Site_B
Now propagating between Site_A and Site_B:
Reference used for design: (Input optical power reference in span = 0.00dBm,
spacing = 50.00GHz
nb_channels = 76)
Channels propagating: (Input optical power deviation in span = 0.00dB,
spacing = 50.00GHz,
transceiver output power = 0.00dBm,
nb_channels = 76)
Input optical power reference in span = 0.00 dBm:
Transceiver Site_A
GSNR (0.1nm, dB): 40.00
GSNR (signal bw, dB): 35.92
OSNR ASE (0.1nm, dB): 40.00
OSNR ASE (signal bw, dB): 35.92
CD (ps/nm): 0.00
PMD (ps): 0.00
PDL (dB): 0.00
Latency (ms): 0.00
Actual pch out (dBm): 0.00
Fiber Span1
type_variety: SSMF
length (km): 80.00
pad att_in (dB): 0.00
total loss (dB): 17.00
(includes conn loss (dB) in: 0.50 out: 0.50)
(conn loss out includes EOL margin defined in eqpt_config.json)
reference pch out (dBm): -17.00
actual pch out (dBm): -17.00
Edfa Edfa1
type_variety: std_low_gain
effective gain(dB): 15.00
(before att_in and before output VOA)
tilt-target(dB) 0.00
noise figure (dB): 6.62
(including att_in)
pad att_in (dB): 0.00
Power In (dBm): 1.81
Power Out (dBm): 16.81
Delta_P (dB): -2.00
target pch (dBm): -2.00
actual pch out (dBm): -2.00
output VOA (dB): 0.00
Transceiver Site_B
GSNR (0.1nm, dB): 31.17
GSNR (signal bw, dB): 27.09
OSNR ASE (0.1nm, dB): 33.29
OSNR ASE (signal bw, dB): 29.21
CD (ps/nm): 1336.00
PMD (ps): 0.85
PDL (dB): 0.00
Latency (ms): 0.39
Actual pch out (dBm): 0.00
Transmission result for input optical power reference in span = 0.00 dBm:
Final GSNR (0.1 nm): 31.17 dB
(No source node specified: picked Site_A)
(No destination node specified: picked Site_B)