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Содержание DET05D2

Страница 1: ...DET05D2 Extended InGaAs Biased Detector User Guide...

Страница 2: ...rent 5 4 5 Junction Capacitance 6 4 6 Bandwidth 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 Com...

Страница 3: ...e Symbol Description Direct Current Alternating Current Both Direct and Alternating Current Earth Ground Terminal Protective Conductor Terminal Frame or Chassis Terminal Equipotentiality On Supply Off...

Страница 4: ...photodiode and an internal 12 V bias battery enclosed in a rugged aluminum housing The DET05D2 includes a removable 1 optical coupler SM1T1 providing easy mounting of ND filters spectral filters fibe...

Страница 5: ...resistor values Thorlabs sells a 50 terminator T4119 for best frequency performance and a variable terminator VT2 for output voltage flexibility Note the input impedance of your measurement device si...

Страница 6: ...rmine the level of the output current to expect and the responsivity based upon the incident light Depicted in Figure 1 is a junction photodiode model with basic discrete components to help visualize...

Страница 7: ...d a voltage builds up This mode of operation exploits the photovoltaic effect which is the basis for solar cells 4 4 Dark Current Dark current is leakage current which flows when a bias voltage is app...

Страница 8: ...e time of the RC circuit Drift time tdf Time for electron hole pairs to move from the depletion zone to the electrodes The depletion zone has an intrinsic electric field that accelerates the charges s...

Страница 9: ...sands of M and is dependent on the photodiode material For example an 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 th...

Страница 10: ...ng this feature then a high impedance load is suggested 4 11 Battery Replacement Thorlabs delivers each DET with an A23 12 V battery This battery is readily available at most retail stores as well as...

Страница 11: ...rse biased to produce a linear response with applied input light The photocurrent generated is based upon the incident light and wavelength and can be viewed on the oscilloscope by attaching a load re...

Страница 12: ...volts across 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 r...

Страница 13: ...pes will have a 1 M input impedance For visible detectors 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...

Страница 14: ...Check Switch Momentary Pushbutton Output BNC DC Coupled Package Size6 2 79 x 1 96 x 0 89 70 9 mm x 49 8 mm x 22 5 mm PD Surface Depth 0 09 2 2 mm Weight 0 10 kg Accessories SM1T1 Coupler SM1RR Retain...

Страница 15: ...GaAs Biased Detector Chapter 7 Specifications Rev A December 27 2017 Page 13 7 1 Response Curve 0 9 1 1 1 3 1 5 1 7 1 9 2 1 2 3 2 5 0 2 0 4 0 6 0 8 1 0 1 2 1 4 DET05D2 Responsivity Responsivity A W Wa...

Страница 16: ...Extended InGaAs Biased Detector Chapter 7 Specifications Page 14 TTN134284 D02 7 2 Mechanical Drawing Visit the web for a more detailed mechanical drawing...

Страница 17: ...Extended InGaAs Biased Detector Chapter 8 Certificate of Conformance Rev A December 27 2017 Page 15 Chapter 8 Certificate of Conformance...

Страница 18: ...r Thorlabs products 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...

Страница 19: ...SA Canada and South America Thorlabs Inc sales thorlabs com techsupport thorlabs com Europe Thorlabs GmbH europe thorlabs com France Thorlabs SAS sales fr thorlabs com Japan Thorlabs Japan Inc sales t...

Страница 20: ...www thorlabs com...

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