High-Speed Fiber Optic Detectors

Thorlabs offers five models of compact, fiber-coupled, high-speed photodetectors, including the new 2 GHz DET01CFC model, which replaces the older D400FC. A visible light version (400 to 1100 nm), the DET02AFC, is also available, with a fast 1.2 GHz bandwidth. This series of GHz bandwidth photodetectors provides the same ease-of-use and compact size as the rest of our extremely popular DET series.

All five models are designed to perform in a wide range of test and measurement applications involving fast optical signals, which includes high-speed data communications, analog microwave, and general high-speed photonic research and development.

If collimation is needed, Thorlabs recommends using our fiber collimation package in a kinematic mount, which allows for easy coupling of free-space beams into the detectors. Please refer to the Related Items and Accessories tabs for links to more information or click on the image to the right.

Item #                         DET02AFC DET01CFC SV2-FC* SIR5-FC* PDA8GS
Material                     Si InGaAs Si InGaAs InGaAs
Bandwidth                 1.2 GHz 2.0 GHz 2 GHz 5 GHz 8 GHz
Wavelength Range         400 - 1100 nm 800 - 1700 nm 320 - 1100 nm 900 - 1650 nm 700 - 1650 nm
Fiber Input                  FC/PC FC/PC FC/PC FC/PC FC/PC
Max Peak Power        18 mW 70 mW 200 mW 20 mW 1 mW CW, 20 mWpp for 60 ms
Min Load Resistor    50 Ω 50 Ω 50 Ω 50 Ω 50 Ω
Max Safe Output         - - 2.5 V 1 V na
Min Rise Time, t          50 ps 100 ps 175 ps 70 ps 50 ps
Dark Current                50 pA 0.7 nA 0.1 nA 0.1 nA -
NEP (Max)                   9.5x10-15 W/√Hz (730nm) 1.5x10-15 W/√Hz (@1550 nm) 2x10-15 W/√Hz 2x10E-15 W/√Hz na
* Each SV2-FC and SIR5-FC model comes with a complete test report.

Features
Compact Detector Housing
High-Speed (1-8 GHz)
Silicon and InGaAs Detectors