PO Box 366, 435 Route 206N, Newton, NJ 07860
Ph (973) 579-7227, Fax (973) 300-3600, http://www.thorlabs.com
DET02AFC Operating Manual — Fiber Input Si Photodetector
Description:
The DET02AFC is a ready-to-use, high-speed Si photodetector for use with FC/PC connectorized fiber optic cables
in visible wavelength optical systems. The unit comes with an FC/PC bulkhead connector, detector, and 12V bias
battery enclosed in a compact aluminum housing. The FC/PC connector provides easy coupling to fiber-based light
sources. The output uses an SMA jack to minimize size and maximize frequency response. The bandwidth is
1.2GHz and will operate over the spectral range of 400-1100nm. A NIR version, the DET01CFC, is also available
and operates in the 800-1700nm spectral range.
The DET02AFC includes one #8-32 tapped mounting hole with a 0.25
″
mounting depth, while the DET02AFC/M has
one M4 tapped mounting hole with a 6.35mm mounting depth. A 12V A23 battery is included.
Specifications*:
Detector: Si
PIN
Output Voltage
1
(Hi-Z): 0-10V
Active Diameter: Ø0.25mm
Output Voltage
2
(50
Ω
): 0-410mV
Wavelength Range (
λ)
: 400-1100nm
Output: SMA (DC coupled)
Peak Wavelength (
λ
p)
: 730nm (typ)
Dark Current
3
(I
D
): 50pA (500pA max)
Peak Response [typ,
ℜ
(
λ
p
)]: 0.46A/W (typ)
Shunt Resistance (R
sh
): 20G
Ω
Input: FC/PC fiber connector
Weight: 0.18lbs
Rise Time (t
R
): 50ps
(typ)
Storage Temp: 0-40
°
C
Fall Time (t
f
): 250ps
(typ)
Operating Temp: 0-40
°
C
Ball Lens Size: Ø0.059
″
(Ø1.5 mm)
Battery: A23,
12V
DC
, 40mAh
Diode Capacitance (C
J
): 0.94pF
(typ)
NEP (730nm): 9.5x10
-15
W/
√
Hz (max)
Min Load Resistance: 50
Ω
Bias Voltage (V
R
): 12V
Damage Threshold: 18mW
*All measurements performed with a 50
Ω
load unless stated otherwise.
1.
Into high impedance. Max voltage is dependent on battery voltage. New batteries typically show 12-13V, while drained
batteries show 9V or less.
2.
Calculated range based on peak responsivity and damage threshold.
3.
Measured with specified bias voltage.
Figure 1
15829-S01 Rev D 3/18/2008
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