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Working principle of acousto-optic modulator
1. Working principle of acousto-optic modulator The core of an acousto-optic modulator(AOM modulator)is the acousto-optic effect. Its basic structure includes acousto-optic crystals, transducers, absorption devices, and drivers. The electrical signal output by the driver is converted into ultraso...Read More -
Introduction to 3GHz Directly Modular Laser
Introduction to 3GHz Directly Modular Laser In the current era of rapid technological development, the demand for high-performance lasers is increasing in many fields. Whether pursuing efficient and stable signal transmission or demanding precision sensing technology, an excellent laser is crucia...Read More -
Characteristics of EDFA Amplifier
Characteristics of EDFA Amplifier The working principle of fiber amplifiers is very similar to that of solid-state lasers. The relevant energy levels, absorption and gain spectra of erbium ions (Er ³ ⁺) in quartz optical fibers are shown in Figure 2. The amorphous properties of quartz broaden the...Read More -
Special instructions for erbium-doped fiber amplifier(EDFA Optical Amplifier)
Special instructions for erbium-doped fiber amplifier(EDFA Optical Amplifier) You have purchased an erbium-doped fiber amplifier (EDFA Optical Amplifier) with a specification of 30dB gain and a saturation output power of+20dBm. Connect 0dBm input light and read an output of+27dBm. You can calcula...Read More -
The working principle of common intensity modulator
The working principle of common intensity modulator The principle of intensity modulators varies depending on the type. The following are the working principles of common intensity modulators: 1. Mach Zehnder Intensity Modulator (MZM Modulator) Core principle: Based on the interference effect of...Read More -
Structure of PIN photodetector
Structure of PIN photodetector Photodetector, a device that converts light signals into electrical signals using the photoelectric effect, is like the human eye and can capture both visible and invisible weak signals. Due to its working principle of light irradiation causing changes in the physi...Read More -
The development trend of narrow linewidth laser
The development trend of narrow linewidth laser The evolution of laser feedback mode in narrow linewidth laser is the evolution of laser resonant cavity structure. Below, we will introduce various configurations of narrow linewidth laser technologies in the order of evolution of laser resonators....Read More -
Bandwidth and responsivity of photodetector
Bandwidth and responsivity of photodetector When choosing InGaAs photodetector, everyone wants the same specifications: bandwidth above 10 GHz and responsivity above 0.9 A/W. After flipping through the data manual, I found that these two numbers never appear on the same device. The high bandwidth...Read More -
Photodetectors and cutoff wavelengths
Photodetectors and cutoff wavelengths This article focuses on the materials and working principles of photodetectors (especially the response mechanism based on band theory), as well as the key parameters and application scenarios of different semiconductor materials. 1. Core principle: The photo...Read More -
Application of Single Frequency Semiconductor Laser in Precise Measurement of Light Wave Interference
Application of Single Frequency Semiconductor Laser in Precise Measurement of Light Wave Interference The application of single frequency semiconductor laser in precision measurement fields such as fiber optic hydrophones and ground listening interferometers is discussed, and the key impact of la...Read More -
Analysis of SLM Spatial Light Modulator Technology
Analysis of SLM Spatial Light Modulator Technology 1.Core Definition and Principles Essence: A SLM spatial light modulator is a programmable optical device that can modulate the phase, amplitude, or polarization state of light waves in the spatial dimension, and can be understood as a “prog...Read More -
Introduction to the Structure and Performance of Thin Film Lithium Niobate Electro optic Modulator
Introduction to the Structure and Performance of Thin Film Lithium Niobate Electro optic Modulator An electro-optic modulator based on different structures, wavelengths, and platforms of thin film lithium niobate, and a comprehensive performance comparison of various types of EOM modulators, as w...Read More
