This article also demonstrates a measurement technique using a three-piece fixture, which can test the characteristics of the source and load impedance network made so that the impedance connected to the transistor's input and output terminals can be simulated and tested. A comprehensive method of the passive network using SRFT technology combined with analysis of mismatch loss and conversion power gain is also given to obtain a relatively simple broadband matching network.

This paper proposes a dynamically adjustable OCSR optical single-sideband modulation scheme based on a dual parallel Mach-Zehnder modulator (DP-MZM) based on theoretical analysis and experimental verification. Setting the modulator's operating point and bias reasonably, Setting the voltage only changes the modulators' bias point, which can realize the dynamic tuning of OCSR. The difference between this scheme and the literature [19] is that two voltage bias points need to be changed in the liter

The low-pass and band-pass filtering effect of the modulated carrier signal is realized, which replaces the expensive microwave photonic filter and reduces the cost. Because the low-pass and band-pass filtering effects have notch frequencies and zero frequencies, the amplitude comparison function with good linearity can be obtained. The measurement range of microwave frequency can be changed by changing the length of dispersion fiber and polarization-maintaining fiber. In the experiment, the mic

Kg-lddr-m series multi-channel laser is specially designed for laboratory and company quality inspection. It can provide 16 channel laser output at the same time. An independent power supply controls the channel, and the wavelength and power can be adjusted. The chassis adopts standard slot type chassis, and the company provides spare modules to facilitate equipment maintenance, with high wavelength accuracy, high-cost performance, and good reliability.

The optical path diagram of the basic principle of fog is shown in Figure 1. It consists of a light source, a detector, a coupler, a Y-Waveguide and an optical fiber ring. In fact, it is a ring interferometer based on the Sagnac effect.

In front of us, we unveiled the RoF (radio over fiber) system's mystery and introduced its working principle and technical advantages. ROF system broke through the "electronic bottleneck" in the field of microwave communication, fully integrated the benefits of optical fiber transmission, and showed incomparable advantages in anti-electromagnetic interference, volume, weight, cost, and stability. In recent years, it has been studied by researchers. The focus of attention, and widely used, to

Half-wave voltage is one of the critical parameters of the LiNbO3 electro-optic modulator. It refers to the voltage required for phase change π, usually expressed in V π. However, it isn't easy to detect the phase of light in optics because it is not easy to measure the stage directly. Therefore, the detection of phase is usually transformed into the detection of light intensity, frequency, and other physical parameters that are easy to be measured directly. Several commonly used half-wave volta