THORLABS PDB440A Operation Manual Download Page 27

© 2019 Thorlabs

5 Appendix

25

5.4   Warranty

Thorlabs warrants material and production of the PDB440x and PDB450x detectors for a period
of 24 months starting with the date of shipment. During this warranty period Thorlabs will see to
defaults by repair or by exchange if these are entitled to warranty. 

For warranty repairs or service the unit must be sent back to Thorlabs. The customer will carry
the shipping costs to Thorlabs, in case of warranty repairs Thorlabs will carry the shipping costs
back to the customer.

If no warranty repair is applicable the customer also has to carry the costs for back shipment.

In case of shipment from outside EU duties, taxes etc. which should arise have to be carried by
the customer.

Thorlabs  warrants  the  hard-  and/or  software  determined  by  Thorlabs  for  this  unit  to  operate
fault-free  provided  that  they  are  handled  according  to  our  requirements.  However,  Thorlabs
does not warrant a fault free and uninterrupted operation of the unit, of the software or firmware
for  special  applications  nor  this  instruction  manual  to  be  error  free.  Thorlabs  is  not  liable  for
consequential damages.

Restriction of Warranty

The warranty mentioned before does not cover errors and defects being the result of improper
treatment,  software  or  interface  not  supplied  by  us,  modification,  misuse  or  operation  outside
the defined ambient stated by us or unauthorized maintenance.

Further claims will not be consented to and will not be acknowledged. Thorlabs does explicitly
not warrant the usability or the economical use for certain cases of application. 

Thorlabs  reserves  the  right  to  change  this  instruction  manual  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 for the content, completeness or quality of the information contained therein. The content
of this document is regularly updated and adapted to reflect the current status of the hardware
and/or software. We furthermore do not guarantee that this product will function without errors,
even if the stated specifications are adhered to.

Under no circumstances can we guarantee that a particular objective can be achieved with the
purchase of this product.

Insofar as permitted under statutory regulations, we assume no liability for direct damage, indir-
ect damage or damages suffered by third parties resulting from the purchase of this product. In
no event shall any liability exceed the purchase price of the product.

Please note that the content of this document is neither part of any previous or existing agree-
ment, promise, representation or legal relationship, nor an alteration or amendment thereof. All
obligations of

 Thorlabs

 result from the respective contract of sale, which also includes the com-

plete  and  exclusively  applicable  warranty  regulations.  These  contractual  warranty  regulations
are neither extended nor limited by the information contained in this document. Should you re-
quire further information on this product, or encounter specific problems that are not discussed
in  sufficient  detail  in  the  document,  please  contact  your  local 

Thorlabs

  dealer  or  system  in-

staller.

All rights reserved. This document may not be reproduced, transmitted or translated to another
language, either as a whole or in parts, without the prior written permission of 

Thorlabs.

Copyright © Thorlabs 2019. All rights reserved.

Summary of Contents for PDB440A

Page 1: ...Balanced Amplified Photodetectors PDB440A PDB440A AC PDB440C PDB440C AC PDB450A PDB450A AC PDB450C PDB450C AC Operation Manual 2019...

Page 2: ...Version Date Item No 2 4 08 Apr 2019 M0009 510 1043 Copyright 2019 Thorlabs...

Page 3: ...Electrical Outputs 9 3 4 Mounting 9 3 5 AC Coupling of the Outputs 10 3 6 CMRR and Frequency Response 11 3 7 Recommendations 4 Maintenance and Service 12 5 Appendix 13 14 5 1 Technical Data 16 5 1 1 P...

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: ...ing the equipment is the responsibility of the assem bler of the system All statements regarding safety of operation and technical data in this instruction manual will only apply when the unit is oper...

Page 6: ...peration manual 2 2 Preparation Note Prior to operation please check if the indicated line voltage range on the power supply matches with your local mains voltage If you want use your own power supply...

Page 7: ...a digital voltmeter or other low frequency measurement device After finishing measurements turn the power supply off Note To prevent saturation of the balanced amplifier make sure that the power diffe...

Page 8: ...r Corning SMF28TM single mode fibers with PC connectors When using FC APC connectors minimal alignment errors may occur due to the small detector size this may result in reduced output signal In this...

Page 9: ...detector mode the RF OUTPUT swing de pends on which INPUT is used it is positive for INPUT and negative for INPUT Please be aware that PDB440 and PDB450 have opposite optical input connectors for and...

Page 10: ...e output signal should not exceed the maximum output voltage to avoid saturation Therefore the optical input power or the power difference between the optical inputs should not exceed CW Saturation Po...

Page 11: ...s to improve the measurement capabilities in applications where a compar ably weak frequency modulated signal shall be measured on a strong CW background signal which could saturate the amplifier With...

Page 12: ...e inputs of the DuT for example using S120 FC adapters One of the DuT s outputs is connected to the network analyzers Port B Frequency response measurements The frequency response of each signal path...

Page 13: ...nt for common mode noise suppression especially at higher frequencies Any path length difference will introduce a phase difference between the two signals which will decrease the noise reduction capab...

Page 14: ...ects the photodiode Attention To avoid damage to the instrument do not expose it to spray liquids or solvents The unit does not need a regular maintenance by the user It does not contain any modules a...

Page 15: ...o NEP Noise Equivalent Power is the minimum input optical power to generate a photo cur rent equal to the RMS noise current in a 1 Hz bandwidth NEP is essentially the minimum detectable power It is st...

Page 16: ...4 6V 1 10V 1 MONITOR Outputs Impedance 220 W Voltage Swing max 10 V high impedance load 1 55 V 50 W load Bandwidth DC to 1 MHz Conversion Gain 10 V mW peak responsivity Voltage Noise 180 VRMS DC Offs...

Page 17: ...al Detector responsivity curves Typical Si Detector responsivity PDB440A PDB450A Typical InGaAs Detector responsivity PDA440C PDB450C Typical Monitor Output Frequency Response PDB440 and PDB450 Series...

Page 18: ...CMRR 35 dB RF OUTPUT Transimpedance Gain 1 51 103 V A RF OUTPUT Conversion Gain 2 27 103 V W 51 103 V W RF OUTPUT DC Offset 3 mV CW Saturation Power 130 W 820 nm 70 W 1550 nm Minimum NEP DC to 15 MHz...

Page 19: ...2019 Thorlabs 5 Appendix 17 PDB440A RF OUTPUT Spectral Noise PDB440A RF OUTPUT Spectral Noise PDB440C Typical RF OUTPUT Frequency Response PDB440C Typical RF OUTPUT Frequency Response...

Page 20: ...2019 Thorlabs 18 PDB440x and PDB450x detectors PDB440C RF OUTPUT Spectral Noise PDB440C RF OUTPUT Spectral Noise...

Page 21: ...1 105 V W 1 106 V W 1 107 V W RF OUTPUT DC Offset 15 mV CW Saturation Power 9 mW 820 nm 4 5 mW 1550 nm Minimum NEP DC to 0 1 MHz Gain 107 V A DC to 0 3 MHz Gain 106 V A DC to 4 MHz Gain 105 V A DC to...

Page 22: ...PDB450x detectors PDB450A RF OUTPUT Spectral Noise PDB450A RF OUTPUT Spectral Noise at different gain settings PDB450C Typical RF OUTPUT Frequency Response PDB450C Typical RF OUTPUT Frequency Respons...

Page 23: ...2019 Thorlabs 5 Appendix 21 PDB450C RF OUTPUT Spectral Noise PDB450C RF OUTPUT Spectral Noise at different gain settings...

Page 24: ...2019 Thorlabs 22 PDB440x and PDB450x detectors 5 2 Dimensions Mechanical Drawing PDB440...

Page 25: ...2019 Thorlabs 5 Appendix 23 Mechanical Drawing PDB450...

Page 26: ...2019 Thorlabs 24 PDB440x and PDB450x detectors 5 3 Certifications and Compliances...

Page 27: ...ion manual 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...

Page 28: ...zil 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 www...

Page 29: ...www thorlabs com...

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