OPTILAB EYDFA-33-PM-R User manual

R1.00
EYDFA-33-PM-R
Operation Manual
+33 dBm Erbium/Ytterbium Doped Fiber Amplifier
CAUTION –
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF
PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.
THE USER MUST READ THIS MANUAL BEFORE OPERATING THE
PRODUCT. OPERATIONS OTHER THAN THOSE DESCRIBED IN THIS
MANUAL MAY RESULT IN PERSONAL INJURY AND DAMAGE TO THE
PRODUCT.
Note that any attempt to open or fix the equipment without prior approval by
Optilab, LLC voids the warranty.

EYDFA-33-PM-R Operation Manual R1.00
i of ii
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
Revision History
Revision
Date
(DD-MM-YYYY)
Summary
R1.00
08-08-2018
Manual introduced.
©Optilab, LLC. 2018, All rights reserved.
Information in this document is subject to change without notice.
All pictures and diagrams are for illustration purposes only and the actual appearance may differ.
This document is copyrighted property of Optilab, LLC. It may not be used in whole or in part for
manufacture, sale, or design of items without the written permission of Optilab, LLC.

EYDFA-33-PM-R Operation Manual R1.00
ii of ii
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
Table of Contents
1. General Information _______________________________________________ 1
1.1 Safety Precautions__________________________________________________________1
1.2 Laser Safety References _____________________________________________________3
1.3 Accessories________________________________________________________________3
2. Product Specifications______________________________________________ 4
2.1 Product Overview __________________________________________________________4
2.2 Features __________________________________________________________________4
2.3 Function Diagram __________________________________________________________4
2.4 Specifications______________________________________________________________5
3. Product Description________________________________________________ 6
3.1 Panel Diagrams and Controls ________________________________________________6
3.2 Operation Instructions ______________________________________________________8
3.2.1Preparation Procedure ___________________________________________________8
3.2.2Start-up Procedure ______________________________________________________8
3.2.3Change Front Panel Setting _______________________________________________9
3.2.4Turn-Off Procedure _____________________________________________________10
3.2.5Interlock and Loss of Signal Protection ______________________________________10
3.3 Remote Control (OPTIONAL)_______________________________________________10
4. Maintenance and Care ____________________________________________ 12
4.1 Troubleshooting___________________________________________________________12
4.2 Care of Fiber-optic Connectors ______________________________________________13
4.2.1Cleaning Optical Connector End-face _______________________________________13
4.2.2Cleaning Optical Connector Sides, Receptacles, Adaptors _______________________14
5. Service and Support_______________________________________________ 14
5.1 Service and Calibration ____________________________________________________14
5.2 Warranty Policy __________________________________________________________15

EYDFA-33-PM-R Operation Manual R1.00
Page 1 of 15
Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
1. General Information
1.1 Safety Precautions
This product emits high power invisible laser radiation from the optical connector(s)
that classifies it to be a CLASS 4 laser product accordingly to IEC 60825-1:2007. The
optical output is hazardous to eyes and skin. AVOID EYE OR SKIN EXPOSURE
TO DIRECT OR SCATTERED RADIATION.
THE OPTICAL OUTPUT MUST BE DISABLED WHEN SWAPPING PATCHCORD
CONNECTIONS.
NEVER USE ADAPTOR OR CONNECTOR TYPE OTHER THAN SPECIFIED IN
THE TEST REPORT. If measurement instruments accept different connector type,
use hybrid patchcords.
Ensure the optical input signal is within the range specified in the test report.
There MUST be an input signal present before turning on the optical output.
Do NOT use this product in HIGH PEAK PULSE POWER (>10W) applications
unless with the consent from the manufacturer. Failing to following this
instruction voids the warranty.
THE OPTICAL OUTPUT IS A POTENTIAL FIRE HAZARD. It is recommended that
the product is used only in a secure and insulated environment.
Catastrophic failure (plasma formation) of optical fiber can occur at optical
powers of even less than 1 W, CW.The optical fiber can become locally heated to
high temperatures at a sharp bend or dust at a fiber end.When the fiber reaches
these high temperatures it starts to absorb the laser radiation and catastrophic failure
occurs. The high temperature failure region moves at about 1 m/stowards the source
of laser radiation. IT IS RECOMMENDED THAT AN EXTERNAL ISOLATOR OR
LONG PATCHCORD BE PERMANENTLY CONNECTED TO THE OUTPUT
RECEPTACLE TO PROTECT THE EQUIPMENT FROM BEING DAMAGED BY
THIS PHENOMENON.

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
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In case when catastrophic failure (plasma formation) has occurred, DO NOT
enable the lasers again. Otherwise the optical fiber will continue to burn
towards the source of laser radiation at about 1m/s.
Plasma Formation (fiber on the left)
OPTICAL COMPONENTS CONNECTED TO THE OPTICAL OUTPUT MUST BE
RATED FOR HIGH POWER USE. It is highly recommended that these components
be properly cooled to dissipate heat.
FOR CONTINUED PROTECTION AGAINST FIRE, REPLACE ONLY WITH SAME
TYPE AND RATING OF FUSE.
The equipment is certified for EMC requirements. THE USER SHOULD NEVER
OPEN THE EQUIPMENT CASE; any attempt will void the warrantee and may result
in electric shock and EMI attack to equipment in the vicinity.
Avoid using any solvent or vaporizing chemical to clean the equipment panel or case.
It may result in damage to the surface and internal circuits.

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
1.2 Laser Safety References
For more laser safety information, please refer to:
1) Laser Institute of America(LIA)
13501 Ingenuity Drive, S uite 128
Orlando, Florida 32826
Phone:[phone], Fax: [phone]
Toll Free:1 800 34 LAS ER
2) American National Standards Institute
ANSI Z136.1, American National Standard for the Safe Us e of Lasers
(Available through LIA)
3) International Electro-technical Commission
IEC 60825-1, Edition 1.2
4) Center for Devices and Radiological Health
21 CFR 1040.10 - Performance Standards for Light-Emitting Products
5) US Department of Labor - OSHA
Publication 8-1.7 - Guidelines for Laser Safety and Hazard Assessment
6) Laser Safety Equipment
Laurin Publishing
7) Laser safety equipment and Buyer’s Guides
1.3 Accessories
When you receive this product, verify the accessories specified in the product
packing list are included. If there are any discrepancies, notify Optilab, LLC promptly.
This product was carefully inspected before it left the manufacturer. It should be in
proper working order upon receipt. You should, however, inspect the product for any
damage that may have occurred in transit. If the shipping container or the packing
material is damaged, keep it until the contents of the shipment have been checked
to be free of mechanical and electrical damages. Notify Optilab, LLC promptly if any
notable damage is found.

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
2. Product Specifications
2.1 Product Overview
This product is a high power Erbium / ytterbium co-doped fiber amplifier designed for
applications requiring high efficiency optical amplification in C-band for CW
operations. It is a single stage booster amplifier delivering over 23 dB gain and up to
+33 dBm saturation power at 1550 nm. It is a self-contained, turn-key rackmount
designed to supply high and stable gainacross the specified range of the wavelength
window.
2.2 Features
•Up to +33 dBm saturation power
•Polarization maintained with high PER
•Collimated Output (Optional)
•Interlock safety feature
2.3 Function Diagram
In the following figure, a basic function diagram of the EYDFA-33-PM-R is given. This
is a single stage amplifiers. It comes with input and output power monitoring, as well
as isolations.
+33 dBm
8/125, PM
AMP
Pump Lasers
Signal Input Signal Output
+10 dBm
8/125, PM
99/1
Input
Monitor
99/1
Output
Monitor
Function Diagram

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
2.4 Specifications
Optical Specifications
Wavelength Range
1545 nm to 1555 nm
Input Power Level
+7 dBm to +13 dBm
Input Laser Linewidth
> 200 kHz
Saturation Output Power
+ 33 dBm
Optical Gain
23 dB @ +10 dBm input
Optical Return Loss
30 dB min.
Input / Output Optical Isolation
27 dB min.
Output Power Stability
0.2 dB over 8 hours
Optical Input / Output Fiber Type
8/125, NA=0.12, PM
Optical Input / Output Connector
FC/APC, fast axis aligned to slow axis
Mechanical Specifications
Operating Temperature
+5 C to +40 C
Storage Temperature
-10 C to +70 C
Power Supply
100 to 240 VAC, 50 to 60 Hz
Control
Pump laser current, enable switch
Monitoring
Pump laser current, input power
Remote Control
RS232 via USB port
Dimensions
3U Rackmount
When you receive this product, verify that a test report are included. These
documents contain important parameters regarding to the optical and electrical
specifications and operation conditions of the product.

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
3. Product Description
3.1 Panel Diagrams and Controls
Feature
Function
Main Touch Display
The Touch LCD display shows the parameters and optical
settings of the EYDFA rackmount unit. This is a touchscreen
type display, see section 3.2.3 for more information.
Output Power
Enable Switch
This switch enables / disables the laser optical output for the
pump lasers.
Optical Input Port
The optical input receptacle, FC/APC type.
Optical Output Port
High power amplifier output port pigtail. For PM model, key
is aligned to the slow axis.
1
2
3
4
Front Panel

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
Feature
Function
AC Power Socket
The AC power socket is the input for the AC power source.
A three-pin standard power cord should be used to connect
this equipment to any 110 or 220 V main supply.
Main AC Power
Switch
This switch enables the electrical power to the DFB-B unit.
USB Female Socket
Using a USB cable, this port allows for remote control and
monitoring through a PC workstation.
Ventilation Fans
The ventilation fans ensure proper ventilation inside the
unit. The back panel and the two sides of this equipment
should be placed at least 3 inches from the wall to dissipate
heat effectively.
Interlock
This BNC female connector is a safety interlock. It must be
shorted in order for the pump lasers to enable. Use the
provided accessory to short this port or connect it to a
compatible interlock device. If the interlock is open during
normal operation, the pump lasers will be turned off. To re-
enable the pump laser output, turn the output switch on the
front panel to “OFF” position first and start over.
1
2
Rear Panel
4
3
5
4

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
3.2 Operation Instructions
3.2.1 Preparation Procedure
1. Prior to the operation, read the user manual carefully and refer to laser safety
information in Sec 1.2. Inappropriate operation may cause severe damage to the
instrument and harm the health of the operators and people close by the amplifier
instrument.
2. Prepare personal protective equipment (not included), e.g., safety goggles, curtains
or enclosures, interlock protection systems (if applicable).
3. The amplifier output is pigtailed; however, DO NOT MATE THE PIGTAIL TO
ANOTHER FIBER. THIS IS NOT A HIGH-POWER CONNECTOR AND IF MATED
TO A FIBER, SEVER DAMAGE WILL RESULT.
4. We recommend either splicing the fiber to another fiber or using the armored
connector to couple light into free-space optical components (e.g. a collimator).
3.2.2 Start-up Procedure
Make sure main AC power switch on the rear panel is off and make sure the key
switch on the front panel is also off. Interlock should be shorted using the provided
accessory or connected to a compatible interlock device.
After plugging in the appropriate power plug into the AC Power Socket, flip the rear
panel Main AC Power Switch to the On position to enable electrical power to the unit.
The LED Main Display will turn on.
Connect the optical input port using an appropriate patch cord. For the best input
coupling, use a PM1550 or equivalent fiber with FC/APC connector.
Enable the optical input. The optical input power should be in the range of +7 dBm to
+13 dBm average power in order to achieve the output power level per specification.
When the optical input power is less than +7 dBm, the pump lasers in the amplifier
will automatically be disabled. The optical input signal should be a continuous wave
(CW) or semi-continuous wave (> 1MHz) in the specified operating wavelength
range.
To enable amplification, first turn the key switch to ON position. Next, turn on the
booster stage pump lasers using the LCD touch screen settings or though back panel
USB control. We recommend keeping the driving current setting of these pump lasers
the same as specified in the test data.

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
3.2.3 Change Front Panel Setting
To toggle between operation modes or to adjust digits of the pump currents, us the shift key
to highlight a parameter to change (it will turn yellow). When the parameter is highlighted,
use the “INC” button to cycle through the options. For the pump current, adjust each digit,
then press “SAVE” to engage the newest settings. The newest current setting value will not
be displayed until the key switch is turned to ON position. The maximum currents of each
diode are displayed but cannot be altered. The Input / output power read by the internal PD
is also displayed. The “ESC” button will deselect your selection.

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
3.2.4 Turn-Off Procedure
1. It is recommended to turn off the booster stage pump current first before turning off
the key switch.
2. Turn off the main AC power switch after the key switch is set to off position.
Note:
Optical input signal should be enabled before turning on pump lasers.
3.2.5 Interlock and Loss of Signal Protection
1. When the detected input signal is less than +7 dBm, all the pump lasers will be shut
off for protection purposes. Once the automatic shut off is triggered, a start over
procedure as described above is required to re-enable the amplifier output. It is
recommended to use +10 dBm or higher input power.
2. A BNC female connector on the back panel is provided as the safety interlock. It
must be shorted in order for the pump lasers to enable. Use the provided accessory
to short this port or connect it to a compatible interlock device. If the interlock is
open during normal operation, the pump lasers will be turned off. To re-enable the
pump laser output, turn the output switch on the front panel to “OFF” position first
and start over, including re-enabling the booster amplifier switch.
3.3 Remote Control (OPTIONAL)
As an optional feature, the EYDFA unit is capable connecting to an external PC
to allow for parameter monitoring and pump level adjustments. To allow
successful enabling of the amplifier, the key switch should be turned on and the
interlock should be shorted to use the software control.
1. Using the USB port on the rear panel, connect the amplifier to a PC, directly to the
USB port with an appropriate USB to USB cable.
2. By using the Device Manager (or other similar PC device tool), the amplifier should
be recognized as COM Port device. If the amplifier does not appear as a COM Port
device, you may need to install the necessaryRS232 drivers included on the software
package.
3. Once the device is recognized by the PC interface, check to see if the operating PC
has a COM port communication software installed.

EYDFA-33-PM-R Operation Manual R1.00
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Use the following RS232 settings:
Baud Rate = 9600
Data Bits: 8
Stop Bits:1
Polarity: None
Append carrier return (CR) and line feed (LF) to each command.
The following commands can then be executed, with a corresponding confirmation
of the command afterwards (Syntax is CMD:XX, case sensitive)
READ: This command displays system status, including the current settings of each
pump and maximum current setting. Example of Response:
Optilab, LLC.
Model Number: EYDFA-33-PM-M
Serial Number: 9077099
FW Version: v1.0.2
Pump Current: 2500 mA
Current Limit: 4200 mA
Input Power: +10.00 dBm
Output Power: +33.27 dBm
Temperature: 25 C
SETLD1:#### This command allows adjustment of the pump diodes drive current in
the unit of mA. Range: 0001 to limit (See test datasheet). Example: SETLD1:0557
will set the drive current of pump LD to 557 mA. Must use four digits.

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
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4. Maintenance and Care
4.1 Troubleshooting
Symptom
Possible Cause (C) and Solution (S)
No Optical Output
C: Interlock is open
S: Close the interlock using the provided BNC connector or connect it to the
compatible interlock system.
C: Input power is low
S: The pump lasers will not be enabled if the input power is lower than the
threshold. Increase the input power to roughly +10 dBm.
C: Key switch is off.
S: Turn on the key switch.
Optical output is not
high enough
C: Power or Current Setting not high enough
S: Increase the Power Setting up to a maximum.
C: No optical input or optical input power is too small.
S: Check whether optical input is present or check optical input power is
correct according to the test report.
C: Optical connectors are dirty.
S: Disable optical output and clean optical connectors.
C: Use of incorrect optical adapters or connectors.
S: Use only the optical adapters and connectors indicated in the test report. If
measurement instruments accept different connector type, then use hybrid
patchcords.
Optical output power
is unstable.
C: Insufficient ventilation.
S: Place unit in well ventilated area or supply additional fans for ventilation.
C: Insufficient optical output isolation.
S: Connect isolator of corresponding wavelength to optical output connector.
Unit resets or blinks
on and off.
C: Power cord is loose.
S: Plug power cord is firmly into the unit.
C: Insufficient electrical voltage.
S: Check that the electrical supply is at least the specified voltage on the label.

EYDFA-33-PM-R Operation Manual R1.00
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600 E. Camelback Road, Phoenix, AZ 85012
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4.2 Care of Fiber-optic Connectors
Damage to optical connectors account for more than 70 percent of equipment
performance degradation. To avoid such damage, the user should use only industrial
grade 99% pure isopropyl alcohol and follow the procedures below to keep the
connectors, adaptors and receptacles clean.
4.2.1 Cleaning Optical Connector End-face
WARNING:
Do NOT perform the Cleaning Optical Connector End-face procedure described
below if the “DO NOT OPEN”stickers are affixed. Otherwise, the internal
components will suffer from permanent damage.
To properly clean optical connectors utilizing lens tissue grade wipes and alcohol
follow the procedure below.
•The moist wipe removes dust particles, oil and contaminants that may damage
or blot the end-face of the connector during connection.
•The dry wipe removes residual alcohol that may be ignited by optical emission.
1. Disable the optical output and turn off the unit to prevent accidental exposure or
damage to the optical connector by optical emission. THE OPTICAL OUTPUT
MUST BE DISABLED WHEN CLEANING THE CONNECTOR END-FACE.
2. Moisten a wipe with alcohol by placing on top of the alcohol dispenser and push
down to saturate the wipe.
3. Place the moist wipe on a work surface, and place a second dry wipe next to it.
4. Wipe the optical connector, end-face down on the moist wipe 3 times and then
repeat on the dry wipe.
5. Visually inspect the end-face of the optical connector with an optical microscope
to verify cleanliness. Repeatsteps 5 to8 as needed. Examples for damaged, dirty,
and clean end-faces are shown in the figures that follow.
Single-mode Fiber (SMF)
Damaged: Replacement required
Dirty: Cleaning required
Clean: No cleaning required

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Polarization-maintaining Fiber (PMF)
Damaged: Replacement required
Dirty: Cleaning required
Clean: No cleaning required
4.2.2 Cleaning Optical Connector Sides, Receptacles, Adaptors
Dust or particles can adhere to the insides of receptacles and adaptors or the sides
of the optical connector ferrule. Their presence can affect the alignment of the optical
fiber connectors and increase connection loss. To properly clean optical connectors,
receptacles, and adaptors utilizing a swab and alcohol follow the procedure as
follows:
1. Disable the optical output and turn off unit to prevent accidental exposure or
damage to the optical connector by optical emission.
2. Moisten the swab by placing it on top of the alcohol dispenser and push down to
saturate the swab.
3. For receptacles, adapters, or other connection points, insert the moistened swab
and rotate the tip 1/2 turn clockwise and counter-clockwise 6 times while applying
light but firm pressure.
4. For fiber connectors, rotate the tip of the moistened swab 5 revolutions around
the connector while applying light but firm pressure.
5. Visually inspect the end face of the connector with an optical microscope to verify
cleanliness. Clean end-face as needed.
5. Service and Support
5.1 Service and Calibration
Your product has been designed to provide years of trouble-free operation. No
internal service is required provided that the equipment is properly handled, operated
and kept away from contamination. For any questions regarding the operation and
performance of the product, please contact Optilab, LLC.

EYDFA-33-PM-R Operation Manual R1.00
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Optilab, LLC
600 E. Camelback Road, Phoenix, AZ 85012
Phone: [phone], Fax: [phone], Email: [e-mail]
5.2 Warranty Policy
Optilab, LLC warrants each new product will be free from defective material and
workmanship under normal use and service for a period of one (1) year for all
products from date of shipment.
During the warranty, Optilab, LLC will either repair or replace, at its option, any
defective product (hereafter refer to as Product) within thirty(30) days after its receipt,
and Optilab, LLC shall return such repaired or replaced Product to the location from
which it originated. Optilab, LLC will be responsible for both material and labor
required to effect all repairs under terms of the warranty, providing the Product is
returned to Optilab, LLC as specified in the warranty statement. The purchaser shall
bear the freight charges incurred in returning the Product to Optilab, LLC for
examination, replace and / or repair of the Product.
The warranty does not apply if the Product has been modified by purchaser or
subjected to misuse, neglect, or accident, or if the Product has been repaired or
altered by an unauthorized service depot so that its performance or reliability has
been impaired, or if the Product has had the serial number altered, effaced or
removed; or if it has been damaged by accessories, peripherals, and other
attachments not approved by Optilab, LLC.
The warranty is in lieu of all other warranties, expressed or implied, and no
representative or person is authorized to assume for Optilab, LLC any other liability
in connection with the sale of the Product.