High Speed Photodetector, 800-1750 nm Battery Biased InGaAs Detector, 2 GHz

The 818-BB-30 High Speed InGaAs Detector consists of a free-space 800 to 1750 nm battery biased InGaAs photodiode with a 0.10 mm active diameter and a <175 ps rise time. A lens on the window, with an acceptance angle of 20°, is used to focus the beam on the photodiiode. It includes a built-in bias supply consisting of two standard 3 V lithium cells (6V total bias) and a 50 ohm BNC connector output. The batteries are easily replaceable, and by disconnecting the detector from the oscilloscope input, when not in use, you can extend the lifetime of the batteries. It is equivalent to Coherent's Model ET-3000 (P/N 120-10034-0001).

InGaAs Free Space Detectors

The 818-BB-30, -31, and -35 consist of free-space, small and large area InGaAs detectors, with rise times ranging from 300 ps to 1.5 ns for covering the 1000-1600 nm wavelength range. Each unit includes a built-in bias supply consisting of standard 3 V lithium cells and a 50 ohm BNC connector output. The 818-BB-51 features an extended InGaAs photodetector with a wavelength range of 1475–2100 nm.

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

Technical Specs

Optical Input
Free Space
Device Type
Biased Detector
Detector Diameter
0.1 mm
Detector Material
InGaAs
Detector Type
PIN
Acceptance Angle
20°
Wavelength Range
800-1750 nm
3 dB Bandwidth
DC to 2 GHz
Rise Time
175 ps
Responsivity
0.9 A/W @ 1300 nm
Output Connector
BNC
Amplified
No

Bias Voltage
6 V
Cut-off Frequency
>2 GHz
Dark Current
<1 nA
Junction Capacitance
<0.75 pF
Reverse Breakdown
25 V
NEP
<0.03 pW/√Hz
Fall Time
<175 ps
Saturation Current
5 mA
Thread Type
8-32 and M4

Optical Input
Free Space
Device Type
Biased Detector
Detector Diameter
0.1 mm
Detector Material
InGaAs
Detector Type
PIN
Acceptance Angle
20°
Wavelength Range
800-1750 nm
3 dB Bandwidth
DC to 2 GHz
Rise Time
175 ps
Responsivity
0.9 A/W @ 1300 nm
Output Connector
BNC
Amplified
No

Bias Voltage
6 V
Cut-off Frequency
>2 GHz
Dark Current
<1 nA
Junction Capacitance
<0.75 pF
Reverse Breakdown
25 V
NEP
<0.03 pW/√Hz
Fall Time
<175 ps
Saturation Current
5 mA
Thread Type
8-32 and M4

Resources & Downloads

Related Products

Accessories

Description	Compatibility	Price
F-IRC2-SIR Sensor Card, 800-1700 nm, 1 in. x 1.5 in. Sensor	UNIVERSAL	$110
FK-STRAPWrist Strap, Grounding (RoHS and / or CE Pending)	UNIVERSAL	$20
F-IRC1IR Sensor Card, 750-1350 nm, 2 in. Square Sensor	UNIVERSAL	$200

Similar

Description	Compatibility	Price
818-BB-31FC Bulkhead High Speed Photodetector, 1000-1600 nm Battery Biased InGaAs Detector, 2 GHz	UNIVERSAL	$600
818-BB-30AOptical Receiver, AC coupled, 1000-1600 nm Biased InGaAs Detector, 1.5 GHz	UNIVERSAL	$750
818-BB-35High Speed Photodetector, 1000-1650 nm Battery Biased InGaAs Detector, 15 GHz	UNIVERSAL	$1,500