DET10D2 Extended InGaAs Biased Detector User Guide
Page 1: ...DET10D2 Extended InGaAs Biased Detector User Guide...
Page 2: ...ent 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 Comm...
Page 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...
Page 4: ...a photodiode and an internal 12 V bias battery enclosed in rugged aluminum housing The DET10D2 includes a removable 1 optical coupler SM1T1 providing easy mounting of ND filters spectral filters fiber...
Page 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...
Page 6: ...ident 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 operation of Thorlabs p...
Page 7: ...he basis for solar cells 4 4 Dark Current Dark current is leakage current which flows when a bias voltage is applied to a photodiode Photoconductive mode tends to generate a dark current that varies d...
Page 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...
Page 9: ...values may range from the order of ten to thousands 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...
Page 10: ...e calculate the bias voltage more precisely using 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 read...
Page 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...
Page 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...
Page 13: ...opes 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 shoul...
Page 14: ...y Check Switch Momentary Pushbutton Output BNC DC Coupled Package Size 2 79 x 1 96 x 0 89 70 9 mm x 49 8 mm x 22 5 mm PD Surface Depth6 0 09 2 2 mm Weight 0 10 kg Accessories SM1T1 Coupler SM1RR Retai...
Page 15: ...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 0 0 2 0 4 0 6 0 8 1 0 1 2 1 4 DET10D2 Responsivity Responsivity A W Wa...
Page 16: ...Extended InGaAs Biased Detector Chapter 7 Specifications Page 14 TTN134037 D02 7 2 Mechanical Drawing Visit the web for a more detailed mechanical drawing...
Page 17: ...Extended InGaAs Biased Detector Chapter 8 Certificate of Conformance Rev A December 27 2017 Page 15 Chapter 8 Certificate of Conformance...
Page 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...
Page 19: ...mail europe thorlabs com Scandinavia Thorlabs Sweden AB Bergfotsgatan 7 431 35 M lndal Sweden Tel 46 31 733 30 00 Fax 46 31 703 40 45 www thorlabs com Email scandinavia thorlabs com France Thorlabs SA...
Page 20: ...www thorlabs com...
