General Information; Safety - THORLABS APD110 Series Operation Manual

1 General Information

The Thorlabs APD110x/120x series Avalanche Photodetectors combine a high sensitivity Si or
InGaAs Avalanche Photodiode with a specially designed ultra-low noise transimpedance ampli-
fier for detection of optical signals from DC to 50 MHz.
APD110x/120x series Avalanche Photodetectors have an exceptionally low NEP, making them
ideal for fast low-level light detection applications, such as spectroscopy, fluorescence mea-
surements, laser radar and optical rangefinders. Due to their very high sensitivity, the
APD110x/120x series Avalanche Photodetectors can replace Photomultiplier Tubes (PMT) in
many applications. The Avalanche Photodetectors cannot be damaged by unwanted ambient
light, which is an advantage over many photomultiplier tubes.
The slim line housing includes a removable threaded coupler that is compatible with any of
Thorlabs 1" and ½" threaded accessories. This allows convenient mounting of external optics,
filters, apertures or fiber adapters. The APD110x/120x has three tapped mounting holes.
The APD110x/120x series is powered by the included external power supply LDS12B (±12
VDC, 250 mA) via a PICO M8 power connector. The appropriate input voltage (100 VAC, 120
VAC, 230 VAC) can be selected with a switch on the

1.1 Safety

Attention
The safety of any system incorporating the equipment is the responsibility of the assem-
bler of the system.
All statements regarding safety of operation and technical data in this instruction manual
will only apply when the unit is operated correctly as it was designed for.
The APD110x/120x must not be operated in explosion endangered environments!
Do not obstruct the air ventilation slots in the housing!
Do not remove covers!
Do not open the cabinet.There are no parts serviceable by the operator inside!
This precision device is only serviceable if properly packed into the complete original
packaging including the plastic foam sleeves. If necessary, ask for replacement pack-
aging.
Refer servicing to qualified personnel!
Only with written consent from Thorlabs may changes to single components be made or
components not supplied by Thorlabs be used.
All modules must only be operated with duly shielded connection cables.
Attention
Mobile telephones, cellular phones or other radio transmitters are not to be used within
the range of three meters of this unit since the electromagnetic field intensity may then
exceed the maximum allowed disturbance values according to IEC 61326-1.
This product has been tested and found to comply with the limits according to
IEC 61326-1 for using connection cables shorter than 3 meters (9.8 feet).
© 2019 Thorlabs
power supply .
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1 General Information
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