Optical attenuator is an electronic device, usually used to reduce the power level of optical signals in optical fiber communication systems. Optical fiber, attenuation is also known as transmission loss. It is to reduce the distance traveled in the optical signal strength and signal transmission medium. Attenuation is an important factor limiting the transmission of digital signals in long distance driving. Optical attenuator can reduce the light signal, because it is along a free space or fiber.
When used in optical fiber communication, optical attenuator, you can employ several principles. A common principle is the principle of gap loss. Attenuator to take advantage of this principle is the modal distribution of the sensitive early attenuator. Therefore, they should use, or close to the transmitter. If not, the attenuator to a less-than-expected loss. Attenuator, this problem can be avoided using the principle of absorption or reflection.
There are three basic types: light attenuator attenuator, step by step attenuator and continuously variable attenuator. Fixed attenuation can reduce the amount of trivial or no reflected light signal. Due to signal reflection is not a problem, it is well-known fixed attenuator more accurate data transmission.We supply Multimode LC Fiber Optic Pigtail,900um, 50/125um fiber, 0.5m/1m/1.5m/2m/3mtr length available based on your needs Fixed attenuator important elements, including the flatness within a specified frequency range, voltage standing wave ratio (VSWR), attenuation, average and peak power handling capability in a specific temperature, size, and high performance. Fixed attenuator is also often used to strengthen the match between the level of the electronic circuit. thorlab fixed attenuator from 5-25 db. Mini-Circuits fixed attenuators model packaged in a rugged plug-ins and connectors. They are in two 50 – and 76-ohm model, ranging from 1-40 db across DC to 1500 MHz.
The resistance of the variable optical attenuator (VOA) is a solid-state devices, such as metal semiconductor field effect transistor (MESFET) and the PIN diode replaced.OnSale Tripp Lite PDUV15 Power Distribution Unit PDU 14 Outlets 15 Amp Tripp Lite’s PDUV15 Basic V. VOA attenuation control signal beam, resulting in different attenuation of the intensity of the beam output. Attenuator to adjust the device between the pump beam into the power ratio of a variable-rate equipment. Voice of America is usually used in optical fiber communication system, to adjust the optical power level to prevent damage to the optical receiver, which may be due to irregular or power level fluctuations. The commercial price of the Voice of America depends on the use of manufacturing technology. A number of manufacturers Voice of America Timbercon and Arcoptix,
timbercon claimed that the optical attenuation unit attenuation level of accuracy of adjustment flexibility. timbercon variable attenuator singlemode and multimode versions. They have low insertion loss and back reflection. The attenuator is the compact size, and provide a variety of packaging options. arcoptix electrical adjustable variable attenuator is the precise control of liquid crystal device to allow the travel beams in free space attenuation. The attenuator can be used between 0 and 10 volts square wave bias adjustment in milliseconds.