Advancements in photonics across telecommunications, sensing, and data processing have elevated optical modulation to a pivotal position for high-spee…
In the optical transceiver link, a modulator driver operates as a broadband amplifier and sees the optical modulator as a low-impedance load. The driver amplifier accepts a low-voltage swing signal from the preceding stage, such as a multiplexer or predriver, and amplifies the signal up to several volts.
In an optical transmitter, encoding electrical signals into optical domains can be accomplished either by directly modulating the injection current of a laser diode, known as direct modulation, or by electro-optic (EO) modulation using an external modulator, known as external modulation.
The important parameters for an optical modulator are modulation bandwidth, modulation depth, and power consumption, and where possible these parameters are included in the discussion for the devices considered.
This study introduces an effective optical equalization method that generates ultrahigh baud rate signals using a dual-drive Mach-Zehnder modulator (D…
Optical modulators are essential components in optical communication networks and optical interconnects. Currently, the development of high-performance optical modulators on silicon-based platforms primarily relies on the electro-optic effect [16], plasmonic dispersion effect [17], or thermo-optic effect of materials.
We propose and investigate an all-optical modulator based on graphene anti-resonant fiber (G-ARF). G-ARF is fabricated by growth graphene on the hollo…
Optical phase modulators find critical applications in classical and quantum communication for data modulation and in high-power fiber lasers for linewidth broadening. In this paper, we propose a simple interferometer-free method to accurately characterize an optical phase modulator.
An optical modulator is defined as a device that modulates a beam of light, which can travel through a vacuum or optical waveguide, by controlling parameters such as amplitude, phase, or polarization. Modulators can be categorized into absorptive and refractive types based on the properties of the material used for modulation. AI generated definition based on: Metal Oxides for Optoelectronics ...
The SA optical modulator is an optical element that operates on the basis of nonlinear saturation absorption characteristics [14]. For efficient short pulse laser, a SA optical modulator with a high optical damage threshold, short recovery time and high stability is in high demand [[15], [16], [17]].
