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Erbium-Doped Fiber Amplifiers

Chapter 5: Operation

Rev A, October 27, 2021

Page 7

Operation

5.1.

Front and Back Panel Overview

Figure 1

Front and Rear Panels of the Fiber Amplifier (EDFA300S or EDFA300P)

5.2.

Turning On the Amplifier

1.

Please consult with your organization’s laser safety officer regarding proper operation of the amplifier at
your institution.

Amplifier Input Port

FC/APC Bulkhead

Pump Current Adjustment Knob

Push to adjust.

Power Key Switch

Display

Indicates pump current level (0-100%),
temperature status, and emission status.

Remote Interlock Input (BNC)

See page 10 for connection logic.

USB Diagnostic Port

For factory use only.

Fuse Tray

See Section 4.2 for
replacement details.

Amplifier Output Port

FC/APC Bulkhead

AC Power Cord
Connector

Cooling Fan - Do Not Block

Moves air from vent holes on the bottom and sides.
Periodically remove dust buildup from vents for
best operation.

AC Power On/Off
Switch

Enable Switch
and Emission
Indicator

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Содержание EDFA300P

Страница 1: ...EDFA300S and EDFA300P C Band Erbium Doped Fiber Amplifiers Operating Manual ...

Страница 2: ...el Overview 7 5 2 Turning On the Amplifier 7 5 3 Adjusting the Fiber Amplifier Gain 8 5 4 Turning the Fiber Amplifier Off 8 Remote Operation from Command Line Interface 9 Making Safety Interlock Connections 10 Troubleshooting 11 General Maintenance 12 9 1 Cleaning 12 9 2 Connector Cleaning 12 Specifications 13 Mechanical Drawings 15 Regulatory 17 12 1 Waste Treatment is Your Own Responsibility 17 ...

Страница 3: ...al or on your device Symbol Description 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 of a Bi Stable Push Control Out Position of a Bi Stable Push Control Caution Risk of Electric Shock Caution Hot Surface Caution Risk of Danger Warning Visible or...

Страница 4: ...ote This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause ...

Страница 5: ...ging the Fuse With the exception of the mains fuses there are no user serviceable parts in this product Do not operate in wet or damp conditions Do not obstruct the air ventilation slots in the housing This device can only be returned when packed into the complete original packaging including all foam packing inserts If necessary ask for a replacement package Mobile telephones cellular phones or o...

Страница 6: ...also included on the enable button to show when the internal laser is active In addition to this mode of operation the EDFA can be operated in constant power control APC and constant gain control AGC modes using a command line interface via USB connection with a PC These modes of operation allow the user to control the amplifier for a fixed output power level or a fixed gain value The amplifier au...

Страница 7: ... rear panel of the unit 3 Carefully use a flat blade screwdriver to open the fuse tray 4 Remove the existing fuses and install two fuses with the appropriate specifications The replacement fuses must be 5 mm x 20 mm 2 A 250 VAC slow blow type 5 Push the fuse tray back into place making sure that it snaps and sits correctly 6 Connect the appropriate power cord into the AC receptacle and plug the un...

Страница 8: ...interface can be plugged into the output port of the amplifier All fiber cable connections can be made to this interface while the interface should stay connected to the output port This option will introduce approximately 0 7 dB of extra insertion loss but it offers the advantage of preventing direct contact between a fiber cable and the internal connector surface to reduce the risk of damage to ...

Страница 9: ...ort FC APC Bulkhead Pump Current Adjustment Knob Push to adjust Power Key Switch Display Indicates pump current level 0 100 temperature status and emission status Remote Interlock Input BNC See page 10 for connection logic USB Diagnostic Port For factory use only Fuse Tray See Section 4 2 for replacement details Amplifier Output Port FC APC Bulkhead AC Power Cord Connector Cooling Fan Do Not Block...

Страница 10: ...e The sign blinks in the adjustment mode and it times out after 5 seconds The knob must be pressed again after the time out in order to make additional adjustments to the pump current set point 9 Ensure that the temperature status still shows OK after the pump current has been increased to the desired level The amplifier is now producing gain and is ready to use 5 3 Adjusting the Fiber Amplifier G...

Страница 11: ...t or Fault LASER ON or OFF runpwr RUN PID POWER CONTROL Enables the amplifier and starts the PID power control loop to keep output power constant runpwr power power can be any positive value representing the output power in micro Watts rungain RUN PID GAIN CONTROL Enables the amplifier and starts the PID gain control loop to keep the amplifier gain constant rungain gain gain can be any positive va...

Страница 12: ...this interlock must be normally open N O meaning that it has to be closed in order for the unit to be enabled If the switch is changed to an open state the amplifier will automatically shut down If the switch returns to a closed condition the amplifier will not re enable until the ENABLE switch is pressed All units shipped from Thorlabs are configured with a shorting BNC device installed in the in...

Страница 13: ...0 to 240 VAC Also ensure that the AC power switch on the back panel has been turned on 2 Fuse s may be open Refer to Section 4 2 for information on replacing open fuses If the problem persists please return the unit to Thorlabs for evaluation Unit powers on but does not enable when pressing the ENABLE button 1 Check to make sure the interlock connector is installed on the rear panel See Chapter 7 ...

Страница 14: ... cloth Avoid using any solvents on or near the unit Keep the vent holes on the sides rear and bottom of the enclosure free of dust buildup Restricted airflow will cause the temperature controls to operate inefficiently and in extreme cases loss of temperature control 9 2 Connector Cleaning Always clean the ferrule end of your fiber patch cables as well as the input and output FC bulkheads prior to...

Страница 15: ...t Input Port 50 dB Input Output Isolation 30 dB Input Output Fiber Type SMF 28 J9 PM1550 XP Input Output Fiber Connectors FC APC Compatible 2 0 mm Narrow Key a The wavelength range over which the small signal gain at 20 dBm input power does not fall below 35 dB b Specified at 1550 nm Please refer to published data on the Thorlabs website for typical curves showing the variation of each parameter w...

Страница 16: ...ge 14 TTN256521 D02 General Specifications Input Voltage 100 240 VAC 50 60 Hz Input Power 20 W Max Fuse Rating 2 A 250 V Fuse Type Time Lag Slow Blow Fuse Size 5 mm x 20 mm Dimensions W x D x H 250 0 mm x 300 0 mm x 122 2 mm 9 84 x 11 81 x 4 81 Weight 7 5 lbs ...

Страница 17: ...Erbium Doped Fiber Amplifiers Chapter 11 Mechanical Drawings Rev A October 27 2021 Page 15 Mechanical Drawings Figure 3 EDFA300S Mechanical Drawing ...

Страница 18: ...Erbium Doped Fiber Amplifiers Chapter 11 Mechanical Drawings Page 16 TTN256521 D02 Figure 4 EDFA300P Mechanical Drawing ...

Страница 19: ...labs 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 12 1 Waste Treatment is Your Own Responsibilit...

Страница 20: ...Erbium Doped Fiber Amplifiers Chapter 13 Declaration of Conformity Page 18 TTN256521 D02 Declaration of Conformity ...

Страница 21: ...on USA Canada and South America Thorlabs Inc sales thorlabs com techsupport thorlabs com UK and Ireland Thorlabs Ltd sales uk thorlabs com techsupport uk thorlabs com Europe Thorlabs GmbH europe thorlabs com Scandinavia Thorlabs Sweden AB scandinavia thorlabs com France Thorlabs SAS sales fr thorlabs com Brazil Thorlabs Vendas de Fotônicos Ltda brasil thorlabs com Japan Thorlabs Japan Inc sales th...

Страница 22: ...www thorlabs com ...

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