Tunable 105 ns optical delay for 80 Gb/sRZ-DQPSK, 40 Gb/s RZ-DPSK, and 40 Gb/s RZ-OOK signals using wavelength conversion and chromatic dispersion

摘要

We demonstrate a variable, optical-delay element using tunable wavelength conversion in a periodicallynpoled lithium niobate waveguide, dispersion-compensating fiber and intrachannel dispersion compensation.nA delay of up to 105 ns is demonstrated using 80 Gb/s return-to-zero differential-quadrature phase-shiftnkeying, 40 Gb/s return-to-zero differential phase-shift keying, and 40 Gb/s return-to-zero on–off keyingnmodulation formats. Bit-error rates u000110−9 are demonstrated for each waveform at various delay settings.Tunable 105 ns optical delay for 80 Gb/s