Abstract

Optical data format de-aggregation enables the conversion from a single higher-order phase-encoded data channel coming from a high-bandwidth network into two amplitude-modulated signals that may be commonly used in lower-bandwidth local information systems. We experimentally demonstrate the optical de-aggregation of a 10-Gbit/s quadrature phase-shift keyed (QPSK) signal into two 5-Gbit/s on-off keyed (OOK) signals. Using wave mixing in a highly nonlinear fiber (HNLF), we apply two optical effects simultaneously to the input signal: (a) constellation squeezing, in which the 10-Gbit/s QPSK signal is de-aggregated into two different 5-Gbit/s binary phase-shift keying (BPSK) signals, and (b) constellation biasing, in which the coherent addition of a continuous-wave (CW) bias and the two BPSK signals shifts the data constellation points, resulting in only amplitude modulation and two different 5-Gbit/s OOK …

Date

January 21, 2025

Authors

Narek Karapetyan, Amir Minoofar, Abdulrahman Alhaddad, Wing Ko, Hongkun Lian, Muralekrishnan Ramakrishnan, Huibin Zhou, Moshe Tur, Jonathan L Habif, Alan E Willner

Journal

Optics Letters

Volume

50

Issue

3

Pages

788-791

Publisher

Optica Publishing Group