THORLABS PDB48*C-AC series Operation Manual Download Page 21

© 2019 Thorlabs

5 Appendix

19

5.4   Warranty

Thorlabs warrants material and production of the PDB48xC-AC for a period of 24 months start-
ing 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 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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