Due to carrier dynamics, the modulated light field from a directly modulated laser (DML) has
an intensity envelope with a certain frequency chirp. When the chirp is linearly mapped into …

A method for photonic generation of a linearly chirped microwave waveform using a
frequency-sweeping laser and a dual-polarization modulator is proposed and investigated …

An asymmetric waveform signal generation scheme based on dual polarization multiplexing-
quadrature phase shift keying (PM-QPSK) modulator is proposed and analyzed. The key …

Due to the chirp effect, the modulation information is carried by both intensity and phase of
the optical signal generated by a directly modulated laser (DML). Compared to the signal …

An approach to generate the linearly chirped microwave waveform with simultaneous
frequency and bandwidth doubling by using cascaded phase modulator and dual-output …

Polarization modulation of two phase-correlated, orthogonally polarized wavelengths by a
parabolic waveform is a promising way to generate linear-frequency-modulated (LFM) …

A simple scheme of tunable parabolic pulses generation is proposed. Mathematically, a
parabolic function is a quadratic function, which is equivalent to a sine-squared function …

In this paper, we theoretically and experimentally analyze the influence of the round-trip
phase of distributed feedback (DFB) lasers on the harmonic-phase of photocurrent, caused …

A photonics method is proposed to generate a microwave linearly chirped signal with
improved central frequency, doubling bandwidth, amplitude and phase modulation …

We present a novel photonic approach to generating widely tunable and background-free
binary phase-coded radio-frequency (RF) pulses by cascading a polarization modulator …