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Key parameters of Mach Zehnder modulator
Key parameters of Mach Zehnder modulator Mach Zehnder Modulator (MZM Modulator) is a high-end electro-optic intensity modulator developed based on the principle of optical interference. It belongs to an important branch of electro-optic modulation in the optical modulation technology system. Curr...Read More -
The physical principle of acousto-optical modulator
The physical principle of acousto-optical modulator Acoustic Optical Modulator (AOM Modulator) is currently the most widely used passive modulation device outside the laser cavity. It’s core working logic is: after an external low-frequency RF electrical signal is input to a piezoelectric t...Read More -
System composition of acousto-optical modulator
System composition of acousto-optical modulator Acoustic Optical Modulator (AOM Modulator) is currently the most widely used passive modulation device outside the laser cavity, belonging to the external modulation technology system. It relies on the physical effects of acousto-optic coupling to a...Read More -
Briefly describe the core principles of fiber laser
Briefly describe the core principles of fiber laser Fiber laser uses glass fiber doped with rare earth elements as the gain medium, forming particle number inversion under the action of pump light, and coupled with a resonant cavity to provide optical feedback, ultimately achieving stable laser o...Read More -
Measurement method for linewidth of single frequency laser
Measurement method for linewidth of single frequency laser Several measurement methods for single frequency laser linewidth from coarse to fine, as well as their applicable scenarios and technical points, are summarized as follows: 1、 Direct measurement by spectrometer (rough measurement, linewi...Read More -
Overview of demand for DFB laser
Overview of demand for DFB laser （1） The core concept of DFB laser DFB continuous laser, also known as continuous wave distributed feedback semiconductor laser, integrates a periodic grating structure in the active waveguide region of the laser. By relying on the distributed feedback effect of ...Read More -
Briefly describe the detection technology of LiDAR
Briefly describe the detection technology of LiDAR Lidar (Light Detection and Ranging) uses the distance values of target point clouds/pixels to estimate the three-dimensional (3D) shape of targets, and has rapidly developed in non structured environment perception such as autonomous driving, rob...Read More -
How to choose between 780nm phase modulator and intensity modulator?
How to choose between 780nm phase modulator and intensity modulator? In the critical wavelength range of 780nm, the interaction between light and matter is particularly rich – whether it is the D2 line transition of cesium atoms or the quantum state manipulation of rubidium atoms, precise c...Read More -
Introduction to ROF Optical Delay Line
Introduction to ROF Optical Delay Line The ROF series of optical delay line can achieve continuous and precise adjustment and control of optical phase, and are widely used in fields such as optical interference, microwave communication, and spectral analysis. According to the driving method, it i...Read More -
Why do we have to use Ge as a photodetector
Why do we have to use Ge as a photodetector 1、 Basic positioning: Why is it necessary to use Ge as a photodetector In silicon optical links, photodetector are the “translators” who convert optical signals back into electrical signals. However, silicon itself has a bandgap of 1.12 eV ...Read More -
Characteristics of EDFA Optical Amplifier
Characteristics of EDFA Optical Amplifier The working wavelength of EDFA Optical Amplifier falls precisely within the optimal wavelength range of 1330-1600nm for fiber optic communication. EDFA Optical Amplifier working in the C-band (1530-1565nm) with the lowest fiber loss window have been widel...Read More -
Coherent optical communication: phase of light
Coherent optical communication: phase of light Coherent communication not only depends on how bright the light is, but also on where the phase of the light is, and even uses two orthogonal polarizations. In this way, more information can be loaded into the same wavelength, and the transmission di...Read More
