Radiometric Photodiode Power Sensors

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Overview

The PD300-BB radiometric sensor with swivel mount has a flat spectral response photodiode sensor for measuring broadband light sources. It covers the spectral range 430 to 1000 nm and has a 10x10 mm aperture. Its power measuring range is 50 pW to 4 mW.

The 50 mW version PD300-BB-50mW measures from 50 pW to 50 mW. The sensor comes with a removable filter and a 1.5 meter cable for connecting to a meter or PC interface.

For measuring broadband light sources
430 to 1000 nm range
10 x 10 mm aperture

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Products

		Compare	Model	Compatibility	sortOrder	rankScore	ranking	Drawings, CAD & Specs		Aperture Size	Spectral Range	Maximum Average Power	Response Time	Availability	Featured Item	Price		Brand
		7Z02405 PD300-BB Radiometric Photodiode Power Sensor, Silicon, 50 pW to 4 mW, 10x10 mm, 430-1000 nm $1,647 In Stock	7Z02405 PD300-BB Radiometric Photodiode Power Sensor, Silicon, 50 pW to 4 mW, 10x10 mm, 430-1000 nm	UNIVERSAL	0.0	1.0	0.0		0.0	10 x 10 mm	430-1000 nm	4 mW	0.2 s	In Stock		$1,647		Ophir
		7Z02440 PD300-BB-50mW Radiometric Photodiode Power Sensor, Silicon, 50 pW to 50 mW, 10x10 mm, 430-1000 nm $1,865 Show	7Z02440 PD300-BB-50mW Radiometric Photodiode Power Sensor, Silicon, 50 pW to 50 mW, 10x10 mm, 430-1000 nm	UNIVERSAL	0.0	1.0	0.0		0.0	10 x 10 mm	430-1000 nm	50 mW	0.2 s	Show		$1,865		Ophir

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Specifications

Aperture Size

10x10 mm
Material

Silicon
Spectral Range

430-1000 nm
Minimum Power

50 pW
Maximum Average Power

4 mW (50 mW PD300-BB-50mW with filter)
Maximum Average Power Density

10 W/cm² (100 W/cm² PD300-BB-50mW with filter)

Maximum Pulse Energy

1 µJ (10 µJ PD300-BB-50mW with filter)
Response Time

0.2 s
Cable Length

1.5 m
CE Compliance

Yes
UKCA Compliance

Yes
China RoHS Compliance

Yes

Features

Measuring Very Low Laser Powers with a Photodiode Sensor

In this short “Basics” video, we review in general the use of photodiode sensors for measuring very low laser powers.

How to Measure Power of Broadband Sources

This video explains how to use Ophir sensors and meters to measure the power or energy of broadband light sources such as solar radiation, flash lamps, LEDs, etc.

Frequently Asked Questions

I am using a PD300 type sensor. I have a broadband light source, but only want to measure the power of a specific wavelength. Can I set my meter to that wavelength and get a measurement?
Answer
The PD300 series of photodiode-based sensors are calibrated with a full spectral curve using a scanning monochromator (plus a few laser "anchor points").

The wavelength ("Laser") setting tells the meter what wavelength is being used and hence what calibration factor to apply when a measurement is underway. It does not, however, physically limit the possibility of other wavelengths from entering. All light (within the sensor's specified range of course) entering the detector will be measured; the meter will apply the calibration factor meant for the selected wavelength, "thinking" that only that wavelength is present.

In other words, these sensors assume a monochromatic light source. Their relative spectral response is not flat and they are therefore not suited for broadband beams.

So, if you want to check one wavelength from a broadband source, you will need to use a wavelength filter that only passes that wavelength. Then you should set your meter to the appropriate wavelength to account for the detector's relative sensitivity.

Do I need to recalibrate my instrument? How often must it be recalibrated?
Answer
Unless otherwise indicated, Ophir sensors and meters should be recalibrated within 18 months after initial purchase, and then once a year after that.

Frequently Asked Questions

I am using a PD300 type sensor. I have a broadband light source, but only want to measure the power of a specific wavelength. Can I set my meter to that wavelength and get a measurement?
Answer
The PD300 series of photodiode-based sensors are calibrated with a full spectral curve using a scanning monochromator (plus a few laser "anchor points").

The wavelength ("Laser") setting tells the meter what wavelength is being used and hence what calibration factor to apply when a measurement is underway. It does not, however, physically limit the possibility of other wavelengths from entering. All light (within the sensor's specified range of course) entering the detector will be measured; the meter will apply the calibration factor meant for the selected wavelength, "thinking" that only that wavelength is present.

In other words, these sensors assume a monochromatic light source. Their relative spectral response is not flat and they are therefore not suited for broadband beams.

So, if you want to check one wavelength from a broadband source, you will need to use a wavelength filter that only passes that wavelength. Then you should set your meter to the appropriate wavelength to account for the detector's relative sensitivity.

Do I need to recalibrate my instrument? How often must it be recalibrated?
Answer
Unless otherwise indicated, Ophir sensors and meters should be recalibrated within 18 months after initial purchase, and then once a year after that.

Accessories

Customers that purchase the above items also consider the following items. Ophir-Spiricon meters and sensors include a standard manufacturers warranty for one year. Add a one year Extended Warranty to your meter or sensor, which includes one recalibration.

Description	Compatibility	Avail.	Price
7Z02418 CDRH Adapter, Ø7 mm Aperture, PD300 Wand Type Power Sensor	UNIVERSAL	In Stock	$99
7Z08336 CDRH Adapter, Ø3.5 mm Aperture, PD300 Wand Type Power Sensor	UNIVERSAL	In Stock	$248
7Z08221 SC Fiber Adapter, PD300 Power Sensors	UNIVERSAL	In Stock	$227
7Z02210 ST Fiber Adapter, PD300 Power Sensors	UNIVERSAL	In Stock	$361
7Z02213 FC Fiber Adapter, PD300 Power Sensors	UNIVERSAL	In Stock	$223
7Z02212 SMA Fiber Adapter, PD300 Power Sensors	UNIVERSAL	Contact Us	$315
7E01125A Optical Sensor Cable, 5 m Length, Connect PD300 to Power Meter	UNIVERSAL	In Stock	$129
7E01125B Optical Sensor Cable, 10 m Length, Connect PD300 to Power Meter	UNIVERSAL	In Stock	$219
7E01125C Optical Sensor Cable, 3 m Length, Connect PD300 to Power Meter	UNIVERSAL	Contact Us	$111
XWAR-SENSOR Extended Warranty for Sensor	UNIVERSAL	Contact Us	$475