Keithley 2520INT Quick Start Manual Download

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Model 2520INT

Integrating Sphere

Quick Start Guide

A G R E A T E R

M E A S U R E O F C O N F I D E N C E

Summary of Contents for 2520INT

Page 1: ...Model 2520INTIntegrating Sphere Quick Start Guide A G R E A T E R M E A S U R E O F C O N F I D E N C E...

Page 2: ...TIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS INC HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES SUCH EXCLUDED DAM AGES SHALL INCLUDE...

Page 3: ...Model 2520INT Integrating Sphere Quick Start Guide 2002 Keithley Instruments Inc All rights reserved Cleveland Ohio U S A First Printing April 2002 Document Number 2520INT 903 01 Rev A...

Page 4: ...d incorporate immediately into the manual Addenda are numbered sequentially When a new Revision is created allAddenda associated with the previous Revision of the manual are incorporated into the new...

Page 5: ...ected to mains voltage or to voltage sources with high tran sient over voltages Installation Category II connections require protection for high transient over voltages often associated with localAC m...

Page 6: ...ersonal contact with these voltages The WARNING heading in a manual explains dangers that might result in personal injury or death Always read the associated information very carefully before performi...

Page 7: ...cts The following lists the current products in the 2520INT Series Each product has bundled a CD Manual Calibration report and 20 post and base 2520INT 1 GE 1in Integrating Sphere with a Germanium Det...

Page 8: ...W 3W Typical Responsivity 4 mA W 3 5 6 0 7 0 7 5 Resolution 5 mW 0 2 0 1 0 1 0 1 Maximum Reverse Bias 5V recommended Dark Current at Max Reverse Bias 4 A typ 10 A max Photodiode Electrical Connections...

Page 9: ...to accept at full maximum acceptance angle 3 1mm 0 12 in 2 Calibration performed at 10nm wavelength intervals 3 Based on detector being linear to up to 25mA photocurrent and on a Signal to Noise Rati...

Page 10: ...odel 2520 2 2 Connections to DUT 2 3 Free space operation and alignment considerations 2 3 Instrument setup 2 6 Detector voltage bias current measurement polarity and range 2 6 Configuring the Model 2...

Page 11: ...3 Maintenance Handling and cleaning precautions 3 2 Dust 3 2 Cleaning 3 2 Calibration 3 2...

Page 12: ...odel 2520INT configuration 1 5 2 Getting Started Figure 2 1 Detector terminals 2 2 Figure 2 2 Electrical connections 2 3 Figure 2 3 Divergent beams 2 4 Figure 2 4 Collimated beams 2 4 Figure 2 5 Horiz...

Page 13: ...1 2 7 Table 2 1 Remote voltage bias and detector polarity measurement commands to bias 2520INT 2 7 Table 2 3 Typical sphere responsivity 2 8 Table 2 5 Programming example using MX B math for optical p...

Page 14: ...1 GeneralOverview...

Page 15: ...ey com Specifications Model 2520INT specifications shown at the front of this guide were current at the time of duplication but they are subject to change without notice For the most recent specifica...

Page 16: ...any operating conditions When servicing the test system any required personnel protection equipment e g laser safety goggles must be provided by the cus tomer s responsible body The customer s laser s...

Page 17: ...following items are included with every Model 2520INT order Model 2520INT Integrating Sphere Optoelectronics CD ROM that contains a PDF of this Quick Start Guide 20 post and base Calibration report Op...

Page 18: ...uct list and key characteristics Configuration As shown in Figure 1 1 the 2520INT consists of a sphere housing detector and mounting holes Key components include Detector output 3 lug female triax con...

Page 19: ...2 GettingStarted...

Page 20: ...electrical connections to the desired Model 2520 channel as follows 1 Connect one end of the Model 7078 TRX triax cable to the Model 2520INT detector output connector 2 Connect the other end of the M...

Page 21: ...ergent beams Devices such as diode chips and bars have divergent beams As shown in Figure 2 3 the beam diameter increases as distance from the source increases If improperly placed the port could bloc...

Page 22: ...ms Collimated beams differ from divergent beams in that the edges of the beam are parallel As shown in Figure 2 4 the beam diameter stays constant even as the distance from the source increases Figure...

Page 23: ...is 45 half angle divergence from the entrance port The maximum acceptance angle of the sphere in the horizontal direction is 25 half angle from the entrance port NOTE Information provided is based on...

Page 24: ...0INT will output 10mA so the current measure range on the Model 2520 should be set to 10 mA Configuring the Model 2520 voltage bias for Model 2520INT 1 Press VB for the detector channel connected to t...

Page 25: ...f Proper measurement of and compensation for the dark current will ensure accurate optical power measurements Table 2 1 Remote voltage bias and detector polarity measurement commands to bias 2520INT C...

Page 26: ...rements 3 From the Model 2520 front panel press the CONFIG FILTER key 4 Enter the number of readings to average 1 100 5 Turn on the outputs then press TRIG 6 Note the detector current reading Optical...

Page 27: ...ent as B 5 Select units as W for Watts 6 Configure other channel as above if needed Initiating optical power measurements 1 Select channel to initiate by pressing Ipd for the desired detector channel...

Page 28: ...ed to calculate optical power Command Description CALC2 KMAT MBF B_value CALC2 KMAT MMF M_value CALC2 STAT ON CALC2 DATA Set detector 1 B value for MX B math Setdetector 1 M value for MX B math Enable...

Page 29: ...3 Maintenance...

Page 30: ...l and a cotton swab To clean with alcohol and a swab dab the tip of a cotton swab in alcohol and then shake off any excess alcohol The tip should be moist not dripping wet Stroke the swab tip gently a...

Page 31: ...2 2 detector polarity 2 6 Detector voltage bias 2 6 Divergent beams 2 3 F Free space operation 2 3 Full beam collection 2 5 G General Overview 1 1 Getting Started 2 1 H Handling and cleaning precautio...

Page 32: ...to zero Unstable Overload Will not read applied input Calibration only Certificate of calibration required Data required attach any additional sheets as necessary Show a block diagram of your measure...

Page 33: ...e 65 82110 Germering 089 84 93 07 40 Fax 089 84 93 07 34 GREAT BRITAIN Unit 2 Commerce Park Brunel Road Theale Berkshire RG7 4AB 0118 929 7500 Fax 0118 929 7519 INDIA Flat 2B Willocrissa 14 Rest House...

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