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Home / Laser Components / Tunable Filter / LDPD020N InGaAs Photodetectors

LDPD020N InGaAs Photodetectors

LD-PD's InGaAs 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. 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.

Name Price Operation
Features

● All InGaAs photodetectors can be ordered

● with optional wall plug-in power supply

Specifications

Specifications

LDPD020N(InGaAs)

Rise Time/Fall Time

<20ns/<20ns

Responsivity at 1300nm 

0.9A/W

Power Supply1

220-240VAC(50-60HZ)

Bandwidth

>650MHz

Active Area Diameter

500µm

Output impedance

50Ω

Amplifier gain

5000

Response   Wavelength range

900-1700nm

Coupling Method

DC

Output Voltage

0-5V

Dark Current

<2.0nA

Acceptance Angle  (1/2 angle)

35°

Noise Equivalent Power 

<0.03pW/√Hz

Maximum Linear Rating

CW current: 5mA

Mounting (Tapped Holes)

8-32 or M4

Output Connector

BNC

Operation   Temperature

-40-+85

Store temperature

-40-+85

Note1;we have our Power supply Included

Spectrum Response

tc1.png

Dimension

tc2.png

Front View

tc3.png

Back View

Application

● 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

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