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1550nm 1G fiber optic transceiver

What is a Bulkhead Attenuator?

Bulkhead attenuator also called fixed fiber-optic attenuators. Bulkhead attenuators used in fiber optic systems may use a variety of principles for their functioning. Preferred attenuators use either doped fibers, or miss-aligned splices. Inline style attenuators are incorporated into patch cables. The alternative build out style attenuator is a small male-female adapter that can be added on to other cables. Non-preferred attenuators often use gap loss or reflective principles. Such devices can be sensitive to: modal distribution, wavelength, contamination, vibration, temperature, damage due to power bursts, may cause back reflections, may cause signal dispersion etc.
Sopto provides attenuators with wide attenuation range from 1dB to 30dB. PC, UPC and APC; FC (Square), SC (Flange), ST (Thread); plastic and metal housing material are available. They could be suit for the operating wavelength as follow: 850nm, 1310nm, 1550nm.