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THORLABS PDB48*C-AC series, Operation Manual

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Balanced Amplified Photodetectors

PDB48xC-AC
Operation Manual
 

2019

Summary of Contents for PDB48*C-AC series

Page 1: ...Balanced Amplified Photodetectors PDB48xC AC Operation Manual 2019...

Page 2: ...Version Date Item No 1 6 14 Jan 2019 M 0009 510 666 Copyright 2019 Thorlabs...

Page 3: ...Inputs 6 3 3 Electrical Outputs 7 3 4 Mounting 8 3 5 CMRR and Frequency Response 9 3 6 Recommendations 4 Maintenance and Service 10 5 Appendix 11 12 5 1 Technical Data 13 5 1 1 Individual Diagrams PDB...

Page 4: ...nternational partners are looking forward to hearing from you Thorlabs GmbH Warning Sections marked by this symbol explain dangers that might result in personal injury or death Always read the associa...

Page 5: ...s contain detailed information about principle of operation operating suggestions and technical specifications 1 1 Safety Attention The safety of any system incorporating the equipment is the responsi...

Page 6: ...ange on the power supply matches with your local mains voltage If you want use your own power supply Thorlabs offers an ap propriate power connector cable Carefully unpack the unit and accessories If...

Page 7: ...or other low frequency measurement device After finishing measurements turn power off Attention The damage threshold of the photo diodes is 10 mW PDB480C AC resp 5 mW PDB481C AC Exceeding this value w...

Page 8: ...level should not exceed the RF output power 1 dB compression point Attention The damage threshold of the photo diodes is 10 mW PDB480C AC resp 5 mW PDB481C AC Exceeding this value will permanently de...

Page 9: ...nal gain In order to avoid saturation the output signal level should not exceed this 1 dB compression point MONITOR Outputs The signal monitor outputs MONITOR and MONITOR allow observation of the inpu...

Page 10: ...DuT The output of the DuT that should be measured is connected to the network analyzers Port B Frequency response measurements The frequency response of each signal path can be measured by connecting...

Page 11: ...the two signals which will decrease the noise reduction capability of the balanced detector The figure below shows the maximum allowed path length difference in fiber to obtain a de sired CMRR Avoid e...

Page 12: ...ectors The photodiodes of the PDB48xC AC are pigtailed with single mode fiber and connectorized by FC APC con nectors Clean and dust free surfaces of the ferrule tips are essential to minimize couplin...

Page 13: ...red across a 50 W load at large bandwidth e g if connect the RF output to a 50 W terminated scope input Max input power is the damage threshold of the photo diode Typical noise spectra diagrams These...

Page 14: ...er at 1 dB compression 50 W load min 16 5 dBm typ 18 dBm RF OUTPUT Coupling AC coupling only RF Output Impedance 50 W Minimum NEP 30 kHz to 100 MHz Overall Output Voltage Noise 9 mVRMS 6 5 mVRMS MONIT...

Page 15: ...2019 Thorlabs 5 Appendix 13 5 1 1 Individual Diagrams PDB480C AC PDB480C AC Typical Detector Responsivity PDB480C AC Typical RF OUTPUT Frequency Response...

Page 16: ...2019 Thorlabs 14 PDB48xC AC PDB480C AC Typical MONITOR Output Frequency Response PDB480C AC Typical RF OUTPUT Spectral Noise...

Page 17: ...2019 Thorlabs 5 Appendix 15 5 1 2 Individual Diagrams PDB481C AC PDB481C AC Typical Detector Responsivity PDB481C AC Typical RF OUTPUT Frequency Response...

Page 18: ...2019 Thorlabs 16 PDB48xC AC PDB481C AC Typical MONITOR OUTPUT Frequency Response PDB481C AC Typical RF OUTPUT Spectral Noise...

Page 19: ...2019 Thorlabs 5 Appendix 17 5 2 Dimensions PDB48xC AC Mechanical Drawing...

Page 20: ...2019 Thorlabs 18 PDB48xC AC 5 3 Certifications and Compliances...

Page 21: ...l or the technical data of the de scribed unit at any time 5 5 Copyright and Exclusion of Reliability Thorlabs has taken every possible care in preparing this document We however assume no li ability...

Page 22: ...Brazil Tel 55 16 3413 7062 Fax 55 16 3413 7064 www thorlabs com Email brasil thorlabs com Japan Thorlabs Japan Inc 3 6 3 Kitamachi Nerima ku Tokyo 179 0081 Japan Tel 81 3 6915 7701 Fax 81 3 6915 7716...

Page 23: ...www thorlabs com...

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