Method and apparatus for construction of compact optical nodes using wavelength equalizing arrays

摘要

Example embodiments of the present invention relate to An optical node comprising of at least two optical degrees; a plurality of directionless add/drop ports; and at least one wavelength equalizing array, wherein the at least one wavelength equalizing array is used to both select wavelengths for each degree, and to perform directionless steering for the add/drop ports.

主权项

1. A ROADM circuit pack, comprising:
at least two optical degrees; a common port connectable to a plurality of directionless add/drop ports, wherein wavelengths from the common port may be directed to any of the at least two optical degrees; and at least one wavelength equalizing array, used to select wavelengths for each degree, and to perform directionless steering of wavelengths to and from the plurality of directionless add/drop ports, wherein the at least one wavelength equalizing array is partitioned into an array of k1 1×1, k2 1×2, k3 1×3 . . . , kp 1×p wavelength selective switches, where p is any integer number greater than 1, and kj is any integer value greater than or equal to 0.