PD300R — это универсальный круглый фотодиодный датчик для измерения лазера. Он имеет апертуру 10 мм и оснащен съемным фильтром. Без фильтра его спектральный диапазон: 350—1100 нм, а его диапазон измерения мощности от 500 пВт до 30 мВт. С фильтром его спектральный диапазон: 430—1100 нм, а диапазон измерения мощности: от 200 мкВт до 300 мВт. Датчик поставляется с 1,5-метровым кабелем для подключе
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What does the PD300 "Background Subtraction" do?
Ophir's Photodiode PD300 and PD300-1W sensors offer automatic background subtraction so the measurement is not sensitive to room light. With "filter out" (i.e. the external filter removed for low light measurements), 2 separate detector elements are visible. The beam to be measured is incident only on the outer of the 2 detectors, but background light reaches both detectors. The instrument will show the power measured by the outer detector minus that measured by the inner detector.This patented method cancels out 95% - 98% of background light under normal room conditions, even if it is constantly changing.Close
When using a photodiode laser power sensor to measure very low power pulsed beams (nW to mW), there are some issues you need to be aware of. This video shows you how to avoid some common problems and ensure maximum accuracy.
In this short “Basics” video we review in general how one goes about measuring laser beam power, so that you’ll have a clear basic understanding of what the different sensor types are, and when you would use which type.
Are you measuring a laser beam coming at an angle correctly?
Ever wonder how your laser power measurements are affected by your beam’s angle of incidence?
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.
In this short “Basics” video, we review in general the use of photodiode sensors for measuring very low laser powers.
Laser Power Sensors introduction
As described in the general introduction, the thermopile sensor has a series of bimetallic junctions. A temperature difference between any two junctions causes a voltage to be formed between the two junctions. Since the junctions are in series and the «hot» junctions are always on the inner, hotter side, and the «cold» junctions are on the outer, cooler side, radial heat flow on the disc causes a voltage proportional to the power input. Laser power impinges on the center of the thermopile sensor disk (on the reverse side of the thermopile), flows radially and is cooled on the periphery. The array of thermocouples measures the temperature gradient, which is proportional to the incident or absorbed power. In principle, the reading is not dependent on the ambient temperature since only the temperature difference affects the voltage generated and the voltage difference depends only on the heat flow, not on the ambient temperature. Прочитать подробнее…
Common Reasons for Photodiode Sensor Damage or Out of Tolerance Conditions
We have included this document with your recent calibration order because we have noticed an out of tolerance condition obtained from your equipment when returned for calibration. This document was created to assist our valued customers in the proper care and maintenance of Ophir photodiode sensors. The following information is for reference only. If you have any reason to believe that the sensor is no longer performing within the original specifications, we always recommend that you send it in for repair and/or recalibration by our trained technicians to bring the unit back to the proper NIST traceable standards.
Ophir photodiode sensors can be used for many years without any repairs when used with the proper laser optical setup. Many of our customers have sensors that are using their original absorber that are over ten years of age. We hope that this document will enable you to also enjoy the long life and reliable results that Ophir- Spiricon is known for. Прочитать подробнее…
Effect of Ambient Conditions on Laser Measurements
We are often asked about the specified ranges of various ambient conditions (temperature, humidity, etc.) for Ophir instruments. In this article we will clarify the effects of these conditions on laser measurements, so you’ll be able to use your Ophir laser measurement instrument effectively. Прочитать подробнее…
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7Z08229This fiber adapter is used for connecting power and energy sensors to a standard FC-type fiber. Many sensors need an additional mounting bracket to connect to all fiber adapters. More information can be found in the datasheet below.
7Z08226This fiber adapter is used for connecting power and energy sensors to a standard ST-type fiber. Many sensors need an additional mounting bracket to connect to all fiber adapters. More information can be found in the datasheet below.
7Z08227This fiber adapter is used for connecting power and energy sensors to a standard SC-type fiber. Many sensors need an additional mounting bracket to connect to all fiber adapters. More information can be found in the datasheet below.
1G01236This fiber adapter is used for connecting power and energy sensors to a standard SMA-type fiber. Many sensors need an additional mounting bracket to connect to all fiber adapters. More information can be found in the datasheet below.
1G02259A mounting bracket is needed to connect round photodiode sensors to a fiber adapter (SC, ST, FC or SMA). This bracket can be used for the PD300R (round) photodiode series, as well as the FPS-1 fast photodiode. It is not needed for the PD300-IRG sensor.
For mounting to SM1 optical components and systems