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Related Manuals for THORLABS PDB47 C Series
Summary of Contents for THORLABS PDB47 C Series
- Page 1 Balanced Amplified Photodetectors PDB47xC Operation Manual 2021...
- Page 2 Version: Date: 08-Jan-2021 Item No.: M-0009-510-676 Copyright © 2021 Thorlabs...
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Page 3: Table Of Contents
4 Maintenance and Service 5 Appendix 5.1 Technical Data 5.1.1 Individual Diagrams PDB470C 5.1.2 Individual Diagrams PDB471C 5.2 Dimensions 5.3 Safety 5.4 Manufacturer Address 5.5 Certifications and Compliances 5.6 Warranty 5.7 Copyright and Exclusion of Liability 5.8 Thorlabs Worldwide Contacts and WEEE Policy... -
Page 4: Foreword
Paragraphs preceded by this symbol explain hazards that could damage the instrument and the connected equipment or may cause loss of data. Note This manual also contains "NOTES" and "HINTS" written in this form. Please read this advice carefully! © 2021 Thorlabs... -
Page 5: General Information
1 General Information 1 General Information Thorlabs PDB47xC Balanced Amplified Photodetectors consist of two well-matched, fiber coupled photodiodes with length matched fibers and an ultra-low noise, ultra-low distortion high-speed transimpedance amplifier that generates an output voltage (RF OUTPUT) propor- tional to the difference between the photo current in the two photodiodes, i.e. the two optical in- put signals. -
Page 6: Installation
2.2 Getting Started Note Please check prior to operation, if the indicated line voltage range 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. ·... -
Page 7: Operating Instructions
3.1 Operating Principle Thorlabs PDB47xC Balanced Amplified Photodetectors consist of two well-matched, pigtailed photodiodes and an ultra-low noise, ultra-low distortion high-speed transimpedance amplifier that generates an output voltage (RF OUTPUT) proportional to the difference between the photo currents of the two photodiodes, i.e. -
Page 8: Optical Inputs
Take care for clean fiber connectors prior to attach them to the PDB47xC's optical inputs! Clean and dust free connections are essential to minimize coupling loss and back reflections. 3.3 Electrical Outputs The Thorlabs PDB47xC has three SMA output connectors: · MONITOR + · MONITOR - ·... -
Page 9: Mounting
The PDB47xC is housed in a rugged shielded aluminum enclosure. For post mounting an adapter can be attached to the bottom or side surface using four M2x8 screws (see below). This adapter supports #8-32 as well as M4 post mounts. The M4 tread is marked. © 2021 Thorlabs... -
Page 10: Cmrr And Frequency Response
OUTPUT must be considered when calculating the CMRR - it is the difference between the RF OUTPUT signal at a given frequency and the measured common mode or balanced output sig- nal - at the same frequency. Typical measurement curves can be found in the individual tech- nical data. © 2021 Thorlabs... -
Page 11: Recommendations
· Another critical point can be electrostatic coupling of electrical noise associated with ground loops. In most cases an electrically isolated post (see Thorlabs parts TRE or TRE/M) will suppress electrical noise coupling. Always try to identify the electrical noise sources and in- crease the distance to the PDB47xC Balanced Detector. -
Page 12: Maintenance And Service
The cylindrical key of the front part must match with its counterpart in the PDB47xC's housing. Warning The screws (3), fixing the base of the switchable adapter to the housing, must not be re- moved! © 2021 Thorlabs... -
Page 13: Appendix
50 W loads. Monitor outputs conversion gain is given for the indic- ated operating wavelength and high impedance load. Typical frequency response curves are measured using the setup described in section "CMRR and Frequency Response" © 2021 Thorlabs... -
Page 14: Technical Data
Values for transimpedance and conversion gain is given for high-impedance load. For a 50 Ω load, divide the value by 2. All technical data are valid at 23 ± 5°C and 45 ± 15% rel. humidity (non condensing) © 2021 Thorlabs... -
Page 15: Individual Diagrams Pdb470C
5 Appendix 5.1.1 Individual Diagrams PDB470C PDB470C - Typical Detector Responsivity PDB470C - Typical RF OUTPUT Frequency Response © 2021 Thorlabs... - Page 16 PDB47xC PDB470C - Typical MONITOR Output Frequency Response PDB470C - Typical RF-OUTPUT Spectral Noise © 2021 Thorlabs...
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Page 17: Individual Diagrams Pdb471C
5 Appendix 5.1.2 Individual Diagrams PDB471C PDB471C - Typical Detector Responsivity PDB471C - Typical RF OUTPUT Frequency Response © 2021 Thorlabs... - Page 18 PDB47xC PDB471C - Typical MONITOR OUTPUT Frequency Response PDB471C - Typical RF-OUTPUT Spectral Noise © 2021 Thorlabs...
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Page 19: Dimensions
5 Appendix 5.2 Dimensions PDB47xC Mechanical Drawing © 2021 Thorlabs... -
Page 20: Safety
If necessary, ask for replacement pack- aging. Refer servicing to qualified personnel! Only with written consent from Thorlabs may changes to single components be made or components not supplied by Thorlabs be used. 5.4 Manufacturer Address... -
Page 21: Certifications And Compliances
5 Appendix 5.5 Certifications and Compliances © 2021 Thorlabs... -
Page 22: Warranty
Thorlabs warrants material and production of the PDB47xC 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. -
Page 23: Thorlabs Worldwide Contacts And Weee Policy
Contact Thorlabs for more information. Waste treat- ment is your own responsibility. “End of life” units must be returned to Thorlabs or handed to a company specializing in waste recovery. Do not dispose of the unit in a litter bin or at a public waste disposal site. - Page 24 www.thorlabs.com...
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