Newport's battery biased amplified fiber-optic receivers are 1-m long singlemode fiber-coupled high speed AC-coupled detectors with an FC connector, with alignment already done. They feature PIN photodiodes that utilize the photovoltaic effect to convert optical power into an electrical current and a fixed gain trainsimpedance amplifier allowing measurement of <1 mW of input powers.
The 818-BB-45AF amplified photoreceiver consists of a 1-m long FC/UPC connectorized singlemode fiber coupled to a 500 to 890 nm GaAs high speed detector with a <35-ps rise time. It is an excellent solution for viewing rapid modulation of low-power CW lasers or other light sources in the µW regime.
The 818-BB-51AF amplified photoreceiver is built from an extended InGaAs photodiode with a 40-µm active diameter and a <35-ps rise time. The device is fiber pigtailed with an FC/UPC connector. With a wavelength range of 1475 to 2100 nm, it allows monitoring Thulium (Tm) and Holmium (Ho) doped lasers as well as other NIR lasers.
These high speed detectors make a great fiber-optic front end for a scope or spectrum analyzer. When terminated into 50Ω into an oscilloscope, the pulse width of a laser can be measured. When terminated into a spectrum analyzer, the frequency response of a laser can be measured.
An 8-32 threaded hole at the bottom of 818-BB biased photoreceivers allows for optical post mounting.
These detectors are very susceptible to damage by electrostatic discharge (ESD). Please use ESD protective measures, like the
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