Optoelectronic devices which play important roles in high-speed optical fiber networks can
offer effective measurement methods for optoelectronic devices including optical modulators …

We propose a high extinction-ratio (ER) Mach-Zehnder modulator (MZM) with an active Y-
branch optical intensity trimmer. In addition, we investigate a high ER integrated MZM for …

A compact device model along with simulations and an experimental analysis of a forward-
biased PN junction-based silicon Mach-Zehnder modulator (MZM) with a phase-shifter …

Ultraviolet communication (UVC) is becoming increasingly popular due to its ability to
effectively communicate in non-line-of-sight (NLOS) mode, which offers alternative …

We investigated a lithium niobate (LiNbO 3) single Mach-Zehnder modulator (MZM) with an
active V-branch, which is similar to an optical V-branch switch. Using the modulator, we …

We find that an adaptive equalizer and a phase-locked loop operating with decision-directed
mode exhibit degraded performances when they are used in a digital coherent receiver to …

In this paper, we show an effective star-QAM constellation in terms of the allowable range of
the extinction ratio for hierarchically modulated PON systems that overlay a 20-Gbps PSK …

A system includes an optical power meter operable to generate an optical power signal
corresponding to the optical power of a received output signal generated by an optical IQ …

We present the analysis of the distortion of optical constellations, induced by IQ-modulator
with finite extinction ratio, for NRZ and Nyquist M-QAM signals. We demonstrate that …

A new any-point biasing scheme for Mach-Zehnder interferometer modulators which
considers the complex phase is proposed. The Mach-Zehnder arm loss imbalance …