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Silicon Photodetectors Data Sheet

Silicon Photodetectors

EOT’s Silicon Photodetectors contain PIN photodiodes that utilize the photovoltaic effect to convert optical power into an electrical current.  When terminated into 50Ω into an oscilloscope, the pulsewidth of a laser can be measured.  When terminated into 50Ω into a spectrum analyzer, the frequency response of a laser can be measured.  EOT’s Silicon Photodetectors come with their own internal bias supply consisting of long-life lithium cells.  Plugging a coaxial cable into the photodetector’s BNC output connector and terminating into 50Ω at the oscilloscope or spectrum analyzer is all that is required for operation.

Applications:

· Monitoring the output of Q-switched lasers

· Monitoring the output of mode-locked lasers

· Monitoring the output of externally modulated CW lasers

· Time domain and frequency response measurements

Features:

· Silicon photodetectors can be ordered with optional wall plug-in power supply

Specificationsa:

Part No.(Model)
120-10000-0001
(ET-2000)
120-10011-0001
(ET-2030)
120-10028-0001
(ET-2040)
120-10133-0001
(ET-2060)
120-10134-0001
(ET-2070)
Rise Time/Fall Time
<350ps/<350ps
<300ps/<300ps
<30ns/<30ns
<320ps/<320ps 3ns/3ns
Responsivity at 830nm
0.03A/W
0.47A/W
0.6A/W
0.47A/W 0.56A/W
Power Supply
3VDC
9VDC
24VDC
9VDC 24VDC
Bandwidth
>1.0GHz
>1.2GHz
>25MHz
>1.1GHz >118MHz
Active Area Diameter
110μm x 55μm
0.4mm
4.57mm
0.4mm 2.55mm
Dark Current 
<0.11nA
<0.1nA
<10nA
<0.1nA <10nA
Acceptance Angle (1/2 angle)
20°
10°
60°
N/Ab 50°
Noise Equivalent Power
<0.15pW/√Hz
<0.01pW/√Hz
<0.09pW/√Hz
<0.01pW/√Hz 0.10pW/√Hz
Maximum Linear Rating
CW current: 20mA
Energy per 10ns pulse: 20µJ
CW current: 3mA
Pulse current: 3mA
CW current: 2mA
Optical input: 3mW
CW current: 3mA
Optical input: 3mA
CW current: 2.5mA
Pulse current: 15mA
Mounting (Tapped Holes)
8-32 or M4
8-32 or M4
8-32 or M4
8-32 or M4 8-32 or M4
Output Connector
BNC
BNC
BNC
BNC BNC

a Product specifications are subject to change.
Includes FC receptacle
Note: All products are RoHS compliant.