Patent ID: 11901949
Assignee: RAYTHEON COMPANY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An apparatus comprising:
first and second optical modulators configured to respectively modulate first optical carriers and a second optical carrier and generate first modulated optical carriers and a second modulated optical carrier;
a first dispersive element configured to delay the second modulated optical carrier and generate a delayed second modulated optical carrier;
a first optical detector configured to convert the delayed second modulated optical carrier into a first electrical signal;
a third optical modulator configured to modulate the first modulated optical carriers based on the first electrical signal and generate third modulated optical carriers;
a wavelength-division demultiplexer coupled to the third optical modulator; and
multiple optical 90-degree hybrid elements configured to separate the third modulated optical carriers into orthogonal components.