US 12,425,118 B2
Turn up and express traffic validation for communication systems
Jonathan Michael Buset, San Jose, CA (US); Nisar Ahmed, Bellevue, WA (US); Francisco Javier Vaquero Caballero, San Jose, CA (US); Thomas Gerard, Campbell, CA (US); and Stephane St-Laurent, Roxboro (CA)
Assigned to Infinera Corp.
Filed by Infinera Corp., San Jose, CA (US)
Filed on Feb. 23, 2023, as Appl. No. 18/173,664.
Claims priority of provisional application 63/313,007, filed on Feb. 23, 2022.
Prior Publication US 2023/0269020 A1, Aug. 24, 2023
Int. Cl. H04J 14/02 (2006.01); H04B 10/079 (2013.01); H04B 10/50 (2013.01)
CPC H04J 14/02126 (2023.08) [H04B 10/0795 (2013.01); H04B 10/506 (2013.01); H04J 14/0205 (2013.01); H04J 14/0212 (2013.01); H04J 14/0221 (2013.01); H04J 14/0307 (2023.08)] 21 Claims
OG exemplary drawing
 
1. A multiplexer module, comprising:
a wavelength selective switch configured to receive a plurality of first optical signals within a plurality of passbands, selectively multiplex the first optical signals within the plurality of passbands into a second optical signal, and output the second optical signal;
an optical performance monitor operable to receive a sample optical signal and determine a power of one or more slice within the sample optical signal, the sample optical signal being selected from a group consisting of a particular optical signal of the first optical signals and a portion of the second optical signal including the particular optical signal;
a controller processor; and
a controller memory, the controller memory being a non-transitory processor-readable memory storing processor-executable instructions, that when executed by the controller processor, cause the controller processor to:
validate the particular optical signal of the plurality of first optical signals using the power of one or more slice within the sample optical signal; and
if the particular optical signal of the plurality of first optical signals is valid, cause the wavelength selective switch to open a particular passband so as to multiplex the particular one of the plurality of first optical signals into the second optical signal,
wherein the controller memory further includes processor executable instructions that when executed by the controller processor further cause the controller processor to:
control the wavelength selective switch to selectively apply a first attenuation to the particular optical signal of the plurality of first optical signals;
detect a first power of the particular optical signal from the optical performance monitor;
control the wavelength selective switch to selectively apply a second attenuation to the particular optical signal, the second attenuation being less than the first attenuation;
detect a second power of the particular optical signal from the optical performance monitor; and
calculate a peak-to-floor ratio for the particular optical signal based at least in part on the first power and the second power.