ET-3500/4000 12.5GHz InGaAs/GaAs Photo Detectors
GaAs and variants

ET-3500/4000 12.5GHz InGaAs/GaAs Photo Detectors

The ET-3500/4000 series photodetectors from EOT cover the wavelengths 800-1600nm/500-890nm, and are available with or without amplification and fiber coupling.
Regular price £861.00 £0.00
Model Wavelength range (nm) Bandwidth Amplified/Fiber coupled Price Order
ET-3500 870-1650 >15GHz No £866.00

ET-3500F 870-1650 >15GHz Fiber coupled £997.00

ET-4000 500-875 >12.5GHz No £861.00

ET-4000F 500-875 >12.5GHz Fiber coupled £1,020.00

ET-3500A 870-1650 20kHz-10GHz Amplified £3,259.00

ET-3500AF 870-1650 20kHz-10GHz Amplified & Fiber Coupled £3,441.00

ET-4000A 500-875 20kHz-10GHz Amplified £3,169.00

ET-4000AF 500-875 20kHz-10GHz Amplified & Fiber Coupled £3,350.00

Summary Box:

The ET-3500/4000 series photodetectors from EOT cover the wavelengths 800-1600nm/500-890nm, and are available with or without amplification and fiber coupling.

Description:

EOT’s >12.5GHz 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 >12.5GHz Photodetectors come with their own internal bias supply consisting of long-life lithium cells. Plugging a coaxial cable into the photodetector’s SMA output connector and terminating into 50Ω at the oscilloscope or spectrum analyzer is all that is required for operation. The ET-3500 and ET-3500F are InGaAs based photodiodes , and the ET-4000/4000F is GaAs based. Fiber coupled (3500F/4000F) and amplified (3500A/4000A) versions are available.

Specifications:

Specificationsa

120-10058-0001 (ET-3500)

120-10068-0001 (ET-3500F)

120-10071-0001 (ET-4000)

120-10081-0001 (ET-4000F)

Detector Material

InGaAs

InGaAs

GaAs

GaAs

Rise Time/Fall Time

<25ps/<25ps

<25ps/<25ps

<30ps/<30ps

<30ps/<30ps

Responsivityb

>0.90A/W at 1300nm

>0.65A/W at 1300nm

>0.53A/W at 830nm

>0.38A/W at 830nm

Power Supply

6VDC

6VDC

3VDC

3VDC

Bandwidth

>15GHz

>15GHz

>12.5GHz

>12.5GHz

Active Area Diameter 

32µm

32µm

60µm

60µm

Dark Current

<3nA

<3nA

<0.5nA

<0.5nA

Acceptance Angle (1/2 angle)

15°

N/A

15°

N/A

Noise Equivalent Powerc

20pW/√Hz at 1300nm

28pW/√Hz at 1300nm

35pW/√Hz at 830nm

45pW/√Hz at 830nm

Maximum Linear CW Power

10mW

10mW

10mW

10mW

Mounting (Tapped Holes)

8-32 or M4

8-32 or M4

8-32 or M4

8-32 or M4

Output Connector

SMA

SMA

SMA

SMA

Fiber Optic Connectiond

N/A

FC/UPC, SMF28e

N/A

FC/UPC, SMF28e

 

Downloads:

High Speed Photodetectors datasheet

Amplified Photodetectors datasheet

Detectors selection chart


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