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Page 1: ...DET10A M Si Biased Detector User Guide...
Page 2: ...h and Response 6 4 7 Terminating Resistance 7 4 8 Shunt Resistance 7 4 9 Series Resistance 7 4 10 Battery Check 7 4 11 Battery Replacement 8 Chapter 5 Common Operating Circuits 9 Chapter 6 Troubleshoo...
Page 3: ...ol Description Direct Current Alternating Current Both Direct and Alternating Current Earth Ground Terminal Protective Conductor Terminal Frame or chassis Terminal Equipotentiality On Supply Off Suppl...
Page 4: ...he DET10A M includes a removable 1 optical coupler SM1T1 providing easy mounting of ND filters spectral filters fiber adapters SMA FC and ST style and other 1 stackable lens mount accessories offered...
Page 5: ...ty Note the input impedance of your measurement device since this will act as a terminating resistor A load resistor is not necessary when using current measurement devices 3 Power the DET on using th...
Page 6: ...ity based upon the incident light Depicted in Figure 1 is a junction photodiode model with basic discrete components to help visualize the main characteristics and gain a better understanding of the o...
Page 7: ...photodiode is zero biased The flow of current out of the device is restricted and a voltage builds up This mode of operation exploits the photovoltaic effect which is the basis for solar cells The am...
Page 8: ...e bandwidth and the response of a photodiode It should be noted that larger diode areas encompass a greater junction volume with increased charge capacity In a reverse bias application the depletion w...
Page 9: ...ode material For example and InGaAs detector has a shunt resistance on the order of 10 M while a Ge detector is in the k range This can significantly impact the noise current on the photodiode For mos...
Page 10: ...labs only recommends using an Energizer battery in our DET series of photodetectors The battery supplied will deliver about 40 hours with a 1 mA load roughly equivalent to a continuous 1 5 mW light so...
Page 11: ...generated is based upon the incident light and wavelength and can be viewed on the oscilloscope by attaching a load resistance on the output The function of the RC Filter is to filter any high freque...
Page 12: ...oss the photodiode since point A is held at the same potential as point B by the operational amplifier This eliminates the possibility of dark current Photoconductive mode The photodiode is reversed b...
Page 13: ...loscopes will have a 1 M input impedance Point the detector toward a fluorescent light and verify that a 60 Hz 50 Hz outside the US signal appears on the scope If so the device should be operating pro...
Page 14: ...battery voltage drops below 9 6 V The reverse protection diode generates a 0 6 V drop Electrical Specifications Detector Silicon Active Area 1 0 mm 0 8 mm2 Wavelength Rangea 200 to 1100 nm Peak Wavele...
Page 15: ...d Detector Chapter 7 Specifications Rev I September 28 2017 Page 13 7 1 Response Curve 0 00 0 10 0 20 0 30 0 40 0 50 200 300 400 500 600 700 800 900 1000 1100 Responsivity A W Wavelength nm Spectral R...
Page 16: ...32 x 0 25 Thread M4 x 6 35mm for EC 26 2 mm 1 03 in 19 1 mm 0 75 in 16 2 mm 0 64 in 48 0 mm 1 89 in 53 3 mm 2 10 in 70 1 mm 2 76 in 43 2 mm 1 70 in Battery Position Indicator Power Switch A Battery Ca...
Page 17: ...Si Biased Detector Chapter 8 Certificate of Conformance Rev I September 28 2017 Page 15 Chapter 8 Certificate of Conformance...
Page 18: ...oducts such as Pure OEM products that means assemblies to be built into a unit by the user e g OEM laser driver cards Components Mechanics and optics Left over parts of units disassembled by the user...
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