Senko attenuators use a proprietary type of metal-ion doped fibre which reduces the light signal as it passes through. This method of attenuation offers higher performance than fibre splices or fibre offsets, which function by misdirecting rather than absorbing the light signal. Senko attenuators can operate in the 1310, C and L Bands.
They are capable of withstanding over 1W of high-power light-exposure for extended periods of time, making them well-suited to EDFA and other high-power applications. Low Polarization Dependent Loss (PDL) and a stable and independent wavelength distribution makes them suitable for DWDM.
Offering high-power light source durability, wavelength independence and attenuation levels ranging from 1dB to 25dB, they are suitable for use with 1310nm, 1550nm, 1250-1625nm and 1350/1550nm dual wave lengths.
Usage note:
A fibre-optic attenuator is a passive device, used to reduce the amplitude of a light signal without significantly changing the wave-form itself. This is often a requirement in Dense Wave Division Multiplexing (DWDM) and Erbium Doped Fibre Amplifier (EDFA) applications, where the receiver cannot accept the signal generated from a high-power light source.