Abstract

An optical-tapped-delay-line (OTDL) can implement various processing functions on data that is transmitted over an optical network, including format conversion, complex filtering, and pattern recognition. Previous demonstrations of OTDL functions have either processed: (i) one data channel with one or more OTDL functions, or (ii) multiple data channels with one OTDL function per channel. In this work, we experimentally demonstrate three OTDL functions simultaneously on two optical data channels to obtain six optical data outputs. The inputs include: (i) two quadrature-phase-shift-keying (QPSK) channels, and (ii) two on-off-keying (OOK) channels. In each case, delayed data copies and pumps encoded with the OTDL function weights undergo nonlinear wave mixing in a periodically poled lithium niobate (PPLN) waveguide. Six optical data outputs are simultaneously generated at six different frequencies. In the …

Date

2026

Authors

Abdulrahman Alhaddad, Wing Ko, Amir Minoofar, Huibin Zhou, Muralekrishnan Ramakrishnan, Hongkun Lian, Zile Jiang, Narek Karapetyan, Yue Zuo, Yingning Wang, Ruoyu Zeng, Xinzhou Su, Ahmed Almaiman, Moshe Tur, Jonathan L Habif, Alan E Willner

Journal

Optics Letters

Volume

51

Issue

8

Pages

2280-2283

Publisher

Optica Publishing Group