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Ultra fast laser for attosecond science
Ultra fast laser for attosecond science At present, attosecond pulses are mainly obtained through high-order harmonic generation (HHG) driven by strong fields. The essence of their generation can be understood as electrons being ionized, accelerated, and recombined by a strong laser electric fiel...Read More -
What is a broad contact semiconductor laser
What is a broad contact semiconductor laser Lasers are used in almost all distributed fiber optic sensing systems (DOFS) because they can efficiently inject high-power lasers into fibers. However, there are various types of lasers, and here the main types are introduced in order of increasing coh...Read More -
A brief introduction to Direct Modulation Laser
A brief introduction to Direct Modulation Laser Direct Modulation Laser (DML Laser) achieves light intensity modulation by directly controlling the driving current of the laser. DML laser has the advantages of simple structure, low cost, and easy integration, and is mainly used in short-range com...Read More -
The driving laser determines the upper limit of the attosecond laser light source
The driving laser determines the upper limit of the attosecond laser light source. At present, attosecond pulse lasers are mainly generated through high-order harmonic generation (HHG) driven by strong fields. The essence of their generation can be understood as electrons being ionized, accelerat...Read More -
Optical path design of the 66-femtosecond mode-locked laser
Optical path design of the 66-femtosecond mode-locked laser This 66-femtosecond mode-locked laser is a linear cavity all-polarization-maintaining ytterbium-doped fiber laser with a non-reciprocal phase shifter. It achieves 147 MHz fundamental frequency mode-locking. By adjusting the distance betw...Read More -
New research on ultra-thin InGaAs photodetector
New research on ultra-thin InGaAs photodetector The advancement of short-wave infrared (SWIR) imaging technology has made significant contributions to night vision systems, industrial inspection, scientific research, and security protection and other fields. With the increasing demand for detecti...Read More -
The Structure of InGaAs Photodetector
The Structure of InGaAs Photodetector Since the 1980s, researchers have been studying the structure of InGaAs photodetectors, which can be summarized into three main types: InGaAs metal semiconductor metal photodetectors (MSM-PD), InGaAs PIN photodetectors (PIN-PD), and InGaAs avalanche photodete...Read More -
Advantages and Applications of SOA Semiconductor Optical Amplifier
Advantages and Applications of SOA Semiconductor Optical Amplifier Advantages of SOA Semiconductor Optical Amplifier: 1.High integration: SOA lasers are small in size and can be directly integrated onto circuit boards of many devices, exhibiting high integration capability. 2.Wide operatin...Read More -
Laser processing optical system solution
Laser processing optical system solution The determination of the laser processing optical system solution depends on the specific application scenario. Different scenarios lead to different solutions for the optical system. Specific analysis is required for specific applications. The optical sys...Read More -
A common type of optical amplifier used in optical communication
A common type of optical amplifier used in optical communication When optical signals are transmitted in optical fibers, as the distance increases, the optical signals will gradually weaken and even cause communication disruptions… Until the appearance of optical amplifiers, they are like a...Read More -
The Generation of Lasers
The Generation of Lasers The generation of lasers was proposed by Einstein in 1916 with his theory of “spontaneous and stimulated emission”. This theory forms the physical basis of modern laser systems. The interaction between photons and atoms may lead to three transition processes: ...Read More -
Optical delay line: The key to time-resolved measurement
Optical delay line: The key to time-resolved measurement In order to obtain an accurate method for generating reliable delays in any time-resolved spectroscopy or dynamic experiments, several factors at the delay line level must be considered to reduce or eliminate errors related to the linear le...Read More
