Optical Receiver, AC coupled, 320-1000 nm Biased Silicon Detector, 1.2 GHz
Model: 818-BB-21A
Product Series Overview
1.2 to 1.5 GHz Optical ReceiversThe 818-BB-21A 1.2 Ghz Optical Reciever consists of a free-space biased Silicon detector with a 0.40 mm diameter and a 500 ps rise time. It has a built-in amplifier with 26 dB of gain. It is excellent for viewing rapid modulation of low-power CW lasers or other light sources in the μW regime. The detector is AC coupled and features a bandwidth of up to 1.2 GHz. A wall plug-in style power supply is provided with this unit. 818-BB Series Biased Photodiode Detectors are cost effective diagnostic tools suitable for a variety of high speed applications such as viewing of Q-switched, mode-locked, or rapidly modulated laser signals and picosecond laser alignment. It is equivalent to Coherent's Model ET-2030A (P/N 120-10013-0001).
NOTE-These detectors are very susceptible to damage by electrostatic discharge (ESD). Please use ESD protective measures, like the FK-STRAP, when unpacking and handling these devices.
Silicon Optical Receiver
The 818-BB-21A features a 0.4 mm diameter silicon photodetector with a wavelength range of 320 to 1000 nm. This 24 V biased free space receiver has an acceptance angle of 10°. The Amplified PIN Photodetector utilizes the photovoltaic effect to convert optical power into an electrical current.
InGaAs Optical Receiver
The 818-BB-30A features a 0.1 mm diameter InGaAs photodetector with a wavelength range of 800 to 1750 nm. This 24 V biased free space receiver has an acceptance angle of 20°. The Amplified PIN Photodetector utilizes the photovoltaic effect to convert optical power into an electrical current.
Measure Pulsewidth or Frequency Response
These high speed detectors make a great free space front end for an scope or spectrum analyzer. When terminated into 50Ω into an oscilloscope, the pulsewidth of a laser can be measured. When terminated into a spectrum analyzer, the frequency response of a laser can be measured.
Optical Post Mounting
An 8-32 threaded hole at the bottom of 818-BB biased photoreceivers allows for optical post mounting.
Handle With ESD Care
These detectors are very susceptible to damage by electrostatic discharge (ESD). Please use ESD protective measures, like the FK-STRAP , when unpacking and handling these devices.
Specifications
- Device TypePhotoreceiver (AC-Coupled)
- Detector Diameter0.4 mm
- Wavelength Range320-1000 nm
- Optical InputFree Space
- Acceptance Angle10°
- Detector MaterialSilicon
- Detector TypePIN
- Maximum Conversion Gain450 V/W at 830 nm
- NEP60 pW/√Hz
- Rise Time500 ps
- Saturation Current1.3 mA
- Peak Responsivity0.4 A/W @ 830 nm
- Bias Voltage24 V
- Output ConnectorBNC
- Output Impedance50 Ω
- Power RequirementsIncludes AC adapter
- Thread Type8-32 and M4
Resources & Downloads
3D Product Models
Literature
Silicon Photodetectors Datasheet(663 kB, PDF)
Manuals
818-BB Amplified Photodetectors User Manual(563.4 kB, PDF)
Technical Notes
818-BB Battery Installation(1.2 MB, PDF)
MKS EU RoHS2 - 818-BB Detectors(287.8 kB, PDF)
Other
818-BB Manufacturer Part Cross-reference Chart(50 kB, PDF)
2D Product Drawings
818-BB-21A Dimensional Drawing(248.2 kB, PDF)
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