High voltage power module is a kind of a power supply, which can be directly mounted on circuit boards. Power module can supply power for integrated circuit, digital signal processor, microprocessor, memory and other digital or analog load. Generally, this module is called load point power supply system or point power supply system. Power supply has been widely used for switching equipment, access devices, mobile communication, optical transmission, microwave communication, router and so on. Our...(more)
Thermal silicon is generally called heat conduction RTV adhesive, which is cured at room temperature and has a certain adhesion performance. Thermal silicon is a kind of silicone rubber. If it is exposed to air, it will be cured and it will be very difficult to separate the bonded object. Thermal grease is a kind of heat-conducting medium, which is based on organic silicone as raw materials. It has non-toxic, tasteless, non-corrosive, stable chemical and physical properties, excellent thermal co...(more)
In last article, some types of laser drivers have been introduced, low noise laser driver and constant current laser driver. This paper aims to the other two types laser drivers , high voltage constant current laser driver and AC input laser driver. III. High voltage constant current laser driver High voltage constant current laser drivers include two series, ATLSXA212 and ATLSXA214. Both of them have high input voltage than other laser drivers in ATI. ATLSXA212 has an input voltage between 4.75...(more)
Diode laser drivers are designed to drive diode lasers in a stable and efficient way. Based on different functions, laser drivers are divided into multiple types, among which DC input laser drivers include low noise diode laser drivers, high efficiency constant current laser drivers, high voltage constant current laser driver, constant current laser drivers; and AC input laser drivers. I. Low noise laser driver ATLSXXX103 and 104 are typical low noise laser drivers, which come with ultra low noi...(more)
With the development of science and technology, semiconductor laser technology has penetrate every field of national economy and defense construction. It has been applied in remote communication, laser radar, digital signal storage and recovery, laser ranging, robot, holographic application, medical diagnosis, etc. However, Its very demanding for semiconductor laser on its working conditions. If Its under improper work or storage condition, it will result in a sharp deterioration in performance...(more)
A laser driver is between multiplexer and laser, which completes electro-optical conversion function. In order to make the laser work well, the good driving signal needs to be provided, depending on the performance parameters of laser driver. The physical photo of laser driver The performance parameters of laser driver mainly include: (1)Working speed: the working speed of laser driver can be reflected by system bandwidth and the upper limit of working speed can increase with the bandwidth incre...(more)
The main function of laser driver is to enlarge high speed signal outputted by a multiplexer to drive the laser diode to work effectively. Figure 1.The modulation modes of laser driver Subsequent circuit of laser driver is light emitting device and there are two driving modes to drive it, as shown in the figure 1. One is directly working on laser diode. The main principle is to change the input current of laser diode and then the required optical digital signal is generated, which is called dire...(more)
In optical fiber communication, optical module plays a very important role. Laser driver used on the front end of optical emission can realize the laser bias and modulation. High speed voltage signal is converted into high speed current signal to modulate laser. Actually, a laser driver is a kind of high speed switching current and its circuits mainly include:(1) high speed modulation circuit; (2) high speed bias current driving circuit; (3) automatic power control circuit. Our company specializ...(more)
