AT-1906(40)

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Attenuators

Attenuators are devices that reduce amplitude of a signal with moderation. Generally speaking, they lower the level of a signal without distorting its waveform. An attenuator is usually passive, meaning that it does not need an external power source to function. Instead, it harnesses power of the input signal source. There are various types of attenuators, such as micro-controlled attenuators, digital attenuators, wide-range optical attenuators and more.

AT-1906(40) application field and working principle

The AT-1906(40) attenuator is a variable optical attenuator that provides a low-cost solution for applications such as optical switching and optical power control. It consists of a special dual-inner-cone design, which allows it to attenuate light with a dynamic range of more than 40dB.

The AT-1906(40) employs a two-stage variable attenuation mechanism. When light probes the dual-cone design in the attenuator, the first stage induces surface plasmon waveguide resonance. This resonance causes light level to be attenuated within the chip, providing the first level of attenuation. The second stage of attenuation occurs within the chip when light approaches a nano-absorber layer. The nano-absorber layer is composed of an ultra-thin, light-absorbing film, which absorbs the portion of light that wasn’t attenuated in the first stage.

The AT-1906(40) has a high speed response time of under 20 milliseconds and it consumes little power, making it ideally suited for dynamic applications. Its small form factor coupled with its wide dynamic range makes it well suited for a variety of optical applications.

Some key applications of the AT-1906(40) include optical switching, optical signal monitoring, fiber-optic power control, optical isolators, and reflective optical components. The AT-1906(40) is also widely used in fiber-optic telecommunications. Due to its wide dynamic range, the AT-1906(40) provides a cost-effective solution for applications that require extended optical power control.

The AT-1906(40) is a highly robust attenuator that can easily handle optical conditions such as high temperature, low power, and high optical power. It also provides superior performance when compared to traditional mechanical attenuators, as it is able to maintain its attenuation setting much more accurately over time.

In summary, the AT-1906(40) is a variable optical attenuator that provides a reliable and cost-effective solution for applications that require precision light signal control. It has a wide dynamic range and fast response time, making it well-suited for a variety of optical applications.

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