Fiber-Optic Detector, 500-900 nm Battery Biased GaAs Detector, 12.5 GHz, FC/UPC

The 818-BB-45F High Speed Battery Biased Fiber-Optic Detector features a 1 meter long FC connectorized singlemode fiber coupled to a 500 to 900 nm GaAs high speed photodetector with a <30 ps rise time. It includes a built-in bias supply consisting of two standard 3 V lithium cells (6V total bias) and a 50 ohm BNC connector output. The photodetectors have an internal 50 Ω termination. As the responsivity data is applicable to the diode only, the detector output should be determined based on 1/2 the responsivity of that shown on graph. This cost effective diagnostic tool is suitable for a variety of high speed applications such as viewing of Q-switched, mode-locked, or rapidly modulated laser signals and picosecond laser alignment. It is a low-cost solution for ultra-fast measurements up to a 12.5 GHz bandwidth. These detectors are suitable for applications where detector rise times of <30 psec are required for Q-switched and Ultrafast Laser output analysis. The batteries are easily replaceable, and by disconnecting the detector from the oscilloscope input, when not in use, you can extend the lifetime of the batteries. It is equivalent to Coherent's Model ET-4000F (P/N 120-10081-0001).
Measure Pulsewidth or Frequency Response
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.
Optical Post Mounting
An 8-32 threaded hole at the bottom of 818-BB biased photoreceivers allows for optical post mounting.
Resources & Downloads
3D Product Models
2D Product Drawings
818-BB Battery Installation(1.2 MB, PDF) 818-BB Non-Amplified High Speed Fiber Photodetectors User Manual(899.8 kB, PDF) MKS EU RoHS2 - 818-BB Detectors(287.8 kB, PDF) Optical Receiver Finder
Other
818-BB Manufacturer Part Cross-reference Chart(50 kB, PDF)







