Low cost commercial grade avalanche photo diode for R & D (much lower cost than a brand new component) custom projects, or educational use.
Optical communications is the way forward, extremely wide bandwidth and immunity from external influences such as EMI, RF and widely used in highly secure installations where it is not desirable to have "unauthorised" access to communications links.
Typical commercial uses are telecommunications, data networks and digital signal transmission
This optical device was removed from secure law enforcement communications systems (upgrade) but are not just limited to that purpose.
An APD is not completely a self-contained "front end" and it still requires significant support circuitry.
This device is the basis for an optical communications receiver, I also have 1330nm laser diodes for use as transmitters listed separately.
Here are some of the technical details ...
Fujitsu Avalanche Photodiode
Model: FPD13R51KS
Structure: Germanium
Wavelength (centre) 1300nm
Cutoff frequency: 2.5GHz
Bitrate up to 1.0Gb/s
I have a 4 page datasheet which includes basic characteristics, spectral response graphs etc, if requested.
Fiber tail (white) is 2.2m length
SC P BLUE connector
Supplied with a mating SC A panel mount socket, ready to create your own optical patch panel
3x small plastic fiber clamps, used to route the excess fiber around the PCB (DO NOT CUT OR BEND SHARPLY)
COSMETIC CONDITION:
EXTREMELY carefully removed from equipment (ESD safety observed)
Fiber cable has been handled with care, no sharp bends and certainly no "kinks"
Leads to the diode assembly are clean and ready for re-soldering
NOTE: These leads were soldered to the original equipment boards "flat" onto pads not through hole, this is how they are designed to be mounted, not "through hole" like a transistor
TESTING:
Removed (eventually - we had to wait for special clearance before making the "cutover" to the new equipment as maintaining of communication system integrity was critical for the client) These devices and the rack modules they were installed in were absolutely fully functioning prior to removal.
I have NOT re-tested them since removal though.
Stored in a special container to ensure the safety of the fibre cable especially.
