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Electronic Variable Optical Attenuators

 

Chapter 7: Regulatory 

Page 14 

 

TTN095737-D02 

Chapter 7  Regulatory 

As required by the WEEE (Waste Electrical and Electronic Equipment 
Directive) of the European Community and the corresponding national laws, 
Thorlabs offers all end users in the EC the possibility to return “end of life” 
units without incurring disposal charges. 

This offer is valid for Thorlabs electrical and electronic equipment: 

 

Sold after August 13, 2005  

  Marked correspondingly with the crossed out 

“wheelie bin” logo (see right) 

 

Sold to a company or institute within the EC  

  Currently owned by a company or institute 

within the EC  

  Still complete, not disassembled and not 

contaminated 

As the WEEE directive applies to self contained 
operational electrical and electronic products, this end of 
life take back service does not refer to other 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 by the user (PCB’s, housings 
etc.).   

If you wish to return a Thorlabs unit for waste recovery, please contact 
Thorlabs or your nearest dealer for further information. 

Waste Treatment is Your Own Responsibility 

If you do not return an “end of life” unit to Thorlabs, you must hand it to a 
company specialized in waste recovery. Do not dispose of the unit in a litter 
bin or at a public waste disposal site. 

Ecological Background 

It is well known that WEEE pollutes the environment by releasing toxic 
products during decomposition. The aim of the European RoHS directive is to 
reduce the content of toxic substances in electronic products in the future. 

The intent of the WEEE directive is to enforce the recycling of WEEE. A 
controlled recycling of end of life products will thereby avoid negative impacts 
on the environment.  

Wheelie Bin Logo 

Summary of Contents for EVOA1550A

Page 1: ...EVOA1550F EVOA1550A Electronic Variable Optical Attenuators User Guide...

Page 2: ...nstructions Details 7 4 1 Overview 7 4 2 Powering Charging the Unit 7 4 3 Fiber Connections 8 4 4 Wavelength Selection Calibration 8 4 5 Attenuation Control 9 4 6 Digital Output Power Display 9 4 7 Mo...

Page 3: ...Direct Current Alternating Current Both Direct and Alternating Current Earth Ground Terminal Protective Conductor Terminal Frame or Chassis Terminal Equipotentiality On Supply Off Supply In Position...

Page 4: ...rdance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation Thorlabs is not responsi...

Page 5: ...d accept either FC PC connectors Item EVOA1550F or FC APC connectors Item EVOA1550A The wavelength selector switch accesses calibrated settings for 1310 nm and 1550 nm and also provides a position whi...

Page 6: ...3 Fiber Interface Utility Panels Rocker Power Switch 2 1 mm Charging Jack for Included Power Supply USB Mini B Charging Jack Charging Indicators Green Fully Charged Yellow Charging SMA Modulation Inpu...

Page 7: ...ally takes 5 hours to reach a full charge starting from the Low Battery indicator that lasts for hundreds of hours 2 Connect input and output fiber patch cables single mode only to the bulkheads Make...

Page 8: ...controlled by the manual power adjustment knob the Power Lock control loop or the SMA modulation input When the power is switched off the EVOA defaults to a mid range attenuation whose value is indep...

Page 9: ...at uses virtually no current as the EVOA is an ultra low current device This feature does not drain the battery meaningfully faster than the battery itself would lose charge otherwise 4 3 Fiber Connec...

Page 10: ...panel see Figure 1 This knob provides the full range of attenuation Rotating it clockwise increases the output power while rotating it counterclockwise decreases the output power The knob has ten full...

Page 11: ...wer setpoint This circuit has a maximum bandwidth of 1 Hz Note that pushing the button may cause a slight offset in the output power which is due to the resolution of the sample and hold circuit If th...

Page 12: ...t thorlabs com Do not disassemble the unit There are no user serviceable components inside The end faces of any fiber patch cables being connected to the EVOA should be cleaned every time a connection...

Page 13: ...V to 4 9 V Absolute Maximum 5 0 V Input Impedance High Z Bandwidth DC to 1 kHz Typ Connector Female SMA Monitor Output Conversion Gain 20 mV mW Output Impedance High Z Bandwidth DC to 1 kHz Min DC to...

Page 14: ...Electronic Variable Optical Attenuators Chapter 6 Specifications Rev B September 5 2017 Page 13 6 2 Mechanical Drawings 3 1 mm 0 12 55 2 mm 2 17 166 9 mm 6 57 161 0 mm 6 34 87 0 mm 3 43 93 2 mm 3 67...

Page 15: ...other 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 disassem...

Page 16: ...Electronic Variable Optical Attenuators Chapter 8 Certificate of Compliance Rev B September 5 2017 Page 15 Chapter 8 Certificate of Compliance...

Page 17: ...anada and South America Thorlabs Inc sales thorlabs com le techsupport thorlabs com Europe Thorlabs GmbH europe thorlabs com France Thorlabs SAS SA sales fr thorlabs com Japan Thorlabs Japan Inc sales...

Page 18: ...www thorlabs com...

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