US 10,893,343 B2
Node for an optical network
Kayvon Barad, Bristol (GB); and Alessio Cipullo, Bristol (GB)
Assigned to Airbus Operations Limited, Bristol (GB)
Filed by AIRBUS OPERATIONS LIMITED, Bristol (GB)
Filed on Mar. 2, 2020, as Appl. No. 16/806,396.
Application 16/806,396 is a division of application No. 15/491,108, filed on Apr. 19, 2017, granted, now 10,582,278.
Claims priority of application No. 1606821.5 (GB), filed on Apr. 19, 2016.
Prior Publication US 2020/0236447 A1, Jul. 23, 2020
Int. Cl. H04J 14/00 (2006.01); H04Q 11/00 (2006.01); H04B 10/07 (2013.01); H04J 14/02 (2006.01)
CPC H04Q 11/0005 (2013.01) [H04B 10/07 (2013.01); H04J 14/00 (2013.01); H04J 14/0201 (2013.01); H04Q 2011/0009 (2013.01); H04Q 2011/0035 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A node for an optical network comprising:
an input configured to receive light from an optical network light, wherein the light includes wavelength components;
first, second and third optical circulators, wherein the third optical circulator is optically connected to the input and to the second optical circulator;
an optical wavelength selective filter optically connected to the input via the second and third optical circulators, the optical wavelength selective filter is configured to extract from the light received by the input (i) a first wavelength component of the wavelength components to form a first optical signal including the first wavelength component and (ii) a second optical signal including a remainder of the wavelength components;
a beam splitter optically coupled to the optical wavelength selective filter, via the first, second and third optical circulators, and configured to receive the second optical signal, wherein the beam splitter is configured to split the second optical signal into a first portion and a second portion each of which includes the remainder of the wavelength components;
a first output optically connected to the optical wavelength selective filter via the beam splitter and the first, second and third optical circulators, and the first output is configured to receive and output the first portion of the second optical signal to a light detector, and
a second output optically connected to the optical wavelength selective filter via the beam splitter and the first, second and third optical circulators, and the second output is configured to receive and output the second portion of the second optical signal to the optical network.