Thin Profile 1000 mW Silicon Photodiode Sensor with 10x10 mm Aperture

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Overview

The PD300-TP silicon photodiode sensor is a thin profile laser measurement sensor with a switchable filter feature and a 10x10 mm aperture. With filter out, its spectral range is 350 to 1100 nm and its optical power measuring range from 50 pW to 3 mW. With filter in, its spectral range is 400 to 1100 nm and its power range from 2 µW to 1 W.

350 to 1100 nm thin profile silicon photodiode sensor
50 pW to 1000 mW power measurement range
On/Off switchable filter

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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
		7Z02424 PD300-TP Photodiode Power Sensor, Silicon, 50 pW to 1 W, 10x10 mm, 350-1100 nm, Thin Profile $795 In Stock	7Z02424 PD300-TP Photodiode Power Sensor, Silicon, 50 pW to 1 W, 10x10 mm, 350-1100 nm, Thin Profile	UNIVERSAL	0.0	1.0	0.0		0.0	10 x 10 mm	350-1100 nm	1000 mW	0.2 s	In Stock		$795		Ophir

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Specifications

Aperture Size

10 x 10 mm
Material

Silicon
Spectral Range

Filter in: 400-1100 nm
Filter out: 350-1100 nm
Power Range

Filter in: 2 µW - 1 W
Filter out: 50 pW - 3 mW
Maximum Average Power Density

Filter in: 50 W/cm²
Filter out: 10 W/cm²
Maximum Pulse Energy

Filter in: 100 µJ
Filter out: 1 µJ

Response Time

0.2 s
Cable Length

1.5 m
Dimensions

175 x 21 x 19 mm (LxWxD)
CE Compliance

Yes
UKCA Compliance

Yes
China RoHS Compliance

Yes

Specifications

Aperture Size

10 x 10 mm
Material

Silicon
Spectral Range

Filter in: 400-1100 nm
Filter out: 350-1100 nm
Power Range

Filter in: 2 µW - 1 W
Filter out: 50 pW - 3 mW
Maximum Average Power Density

Filter in: 50 W/cm²
Filter out: 10 W/cm²
Maximum Pulse Energy

Filter in: 100 µJ
Filter out: 1 µJ

Response Time

0.2 s
Cable Length

1.5 m
Dimensions

175 x 21 x 19 mm (LxWxD)
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.

Effects of Incidence Angle on Measurements

In this video, you will learn to what degree a beam’s incidence angle matters, and for which sensor types this should be taken into account.

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.

Effects of Incidence Angle on Measurements

In this video, you will learn to what degree a beam’s incidence angle matters, and for which sensor types this should be taken into account.

Frequently Asked Questions

How do I take off the removable filter from the PD300?
Answer

Removing External Filter from PD300:

Step 1 – Starting position

Step 2

Step 3

Can a lost PD300 filter be replaced?
Answer
Technically it could be replaced, but it is not just a matter of replacing the filter. Since the PD300 is a "calibrated" sensor it requires that the filter also be "calibrated". Especially since the PD300 response varies with wavelength, it requires that both the PD300 and the filter be calibrated over the entire spectral range with a monochromator. Because of the cost to calibrate the replacement filter with the PD300 sensor, we recommend purchasing a new PD300 sensor when a replacement filter is needed.

The total error when using a PD-300 head is listed as +/- 3%. Is that 3% of the reading or 3% of the total range?
Answer
It's +/-3% of the reading from full scale down to 5% of full scale. Below 5% of full scale one should switch to next range down for the best accurate linear results.

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.

Can I use a PD300 sensor inside a thermal chamber, in which the temperature cycles beyond the recommended operating temperature range?
Answer
It should be okay, as long as:
- the wavelength is not near the long wavelength limit where the PD300 has a large temperature dependence;
- there is no condensation on the window of the detector which could interfere with the beam and affect the reading.
We suggest the customer does an experiment with a stable laser source (such as a pointer laser) shining in through a window onto the detector while the unit is temperature cycled to see if the reading changes. The final measurement should be back at the original temperature so as to make sure the laser hasn’t changed.

Can I use a PD300 photodiode sensor to measure power of a scanned beam?
Answer
For measuring power of a scanned beam we recommend using the BC20, and not the PD300. Since a scanned beam will spend only a fraction of the time of each scan on the detector, the average power measured by the detector will correspondingly be only a fraction of the actual power of the beam. The BC20 is specially designed for such applications by having a peak-hold circuit integrated in its electronics.

Why do Photodiode-based power sensors like the PD300 have a specified “Max pulse energy”?
Answer
Although these sensors measure average power (of both CW and repetitively pulsed beams), not pulse energy, it is possible for a pulsed beam to have average power within the sensor’s rated limits and yet have the energy of the pulses themselves be high enough to cause a momentary saturation of the sensor. It is important to be sure that pulse energy is also within sensor spec – not just the average power. This is explained in detail in this White Paper.

Can I use a sensor from the PD300 family to measure average power of pulsed lasers?
Answer
In general yes, but several technical issues need to be kept in mind (most of which are results of the fast physical response time of these sensors):
- The pulse rate should be more than about 30Hz, otherwise the reading is unstable. At higher pulse frequencies, the sensor will respond as if the beam were CW.
- It is possible for a pulsed beam to have average power within the sensor spec and yet have the energy of the pulses themselves be high enough to cause a momentary saturation of the sensor. It is important to be sure that pulse energy is also within sensor spec (the parameter "Max pulse energy" is included in all specs for the PD300 family, for just this reason).
- The beam diameter should be no less than about 1mm .
- The average power and power density restriction in the spec should not be exceeded
Note: At the maximum pulse energy limit given in the spec, the reading will be saturated by about 5%, i.e. the reading will be about 5% lower than it should be. At 1/3 the maximum, the saturation will be about 1%.

Frequently Asked Questions

How do I take off the removable filter from the PD300?
Answer

Removing External Filter from PD300:

Step 1 – Starting position

Step 2

Step 3

Can a lost PD300 filter be replaced?
Answer
Technically it could be replaced, but it is not just a matter of replacing the filter. Since the PD300 is a "calibrated" sensor it requires that the filter also be "calibrated". Especially since the PD300 response varies with wavelength, it requires that both the PD300 and the filter be calibrated over the entire spectral range with a monochromator. Because of the cost to calibrate the replacement filter with the PD300 sensor, we recommend purchasing a new PD300 sensor when a replacement filter is needed.

The total error when using a PD-300 head is listed as +/- 3%. Is that 3% of the reading or 3% of the total range?
Answer
It's +/-3% of the reading from full scale down to 5% of full scale. Below 5% of full scale one should switch to next range down for the best accurate linear results.

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.

Can I use a PD300 sensor inside a thermal chamber, in which the temperature cycles beyond the recommended operating temperature range?
Answer
It should be okay, as long as:
- the wavelength is not near the long wavelength limit where the PD300 has a large temperature dependence;
- there is no condensation on the window of the detector which could interfere with the beam and affect the reading.
We suggest the customer does an experiment with a stable laser source (such as a pointer laser) shining in through a window onto the detector while the unit is temperature cycled to see if the reading changes. The final measurement should be back at the original temperature so as to make sure the laser hasn’t changed.

Can I use a PD300 photodiode sensor to measure power of a scanned beam?
Answer
For measuring power of a scanned beam we recommend using the BC20, and not the PD300. Since a scanned beam will spend only a fraction of the time of each scan on the detector, the average power measured by the detector will correspondingly be only a fraction of the actual power of the beam. The BC20 is specially designed for such applications by having a peak-hold circuit integrated in its electronics.

Why do Photodiode-based power sensors like the PD300 have a specified “Max pulse energy”?
Answer
Although these sensors measure average power (of both CW and repetitively pulsed beams), not pulse energy, it is possible for a pulsed beam to have average power within the sensor’s rated limits and yet have the energy of the pulses themselves be high enough to cause a momentary saturation of the sensor. It is important to be sure that pulse energy is also within sensor spec – not just the average power. This is explained in detail in this White Paper.

Can I use a sensor from the PD300 family to measure average power of pulsed lasers?
Answer
In general yes, but several technical issues need to be kept in mind (most of which are results of the fast physical response time of these sensors):
- The pulse rate should be more than about 30Hz, otherwise the reading is unstable. At higher pulse frequencies, the sensor will respond as if the beam were CW.
- It is possible for a pulsed beam to have average power within the sensor spec and yet have the energy of the pulses themselves be high enough to cause a momentary saturation of the sensor. It is important to be sure that pulse energy is also within sensor spec (the parameter "Max pulse energy" is included in all specs for the PD300 family, for just this reason).
- The beam diameter should be no less than about 1mm .
- The average power and power density restriction in the spec should not be exceeded
Note: At the maximum pulse energy limit given in the spec, the reading will be saturated by about 5%, i.e. the reading will be about 5% lower than it should be. At 1/3 the maximum, the saturation will be about 1%.

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.