Pulsed Ytterbium
Laser
User
Instruction
10W-30W Pulsed Fiber Laser
series
WuHan Raycus Fiber Laser Technologies CO., LTD
WuHan Raycus Fiber Laser Technologies CO., LTD
Pulsed Fiber Laser User’s Guide
Safety Information
Please read this instruction carefully and familiarize yourself with the information we have
provided before you use the product. In this brochure, important operation procedures, safety and
other information is provided for you and all future users. In order to ensure operating safely and
optimal performance of the product, please do according to following warnings, cautions and
other information.
Raycus pulsed fiber laser is classified as a high power Class IV laser device. Before supplying
the power to the device, please make sure that the correct voltage of 24VDC power source is
connected and the anode and cathode are right. Failure to connect power source correctly will
cause damage to the device.
The device emits invisible 1060~1085nm wavelength light with average power 10W, 20W,
and 30W. Do not expose your eyes or skin to the radiation of the laser.
Do not take apart the device, because there are no replaceable accessories available for users
to use. Any maintenance can only be proceeded in Raycus.
Do not look into the light output end directly. Use appropriate laser safety eyewear when
operating the device.
Safety labels and locations
The two labels above is located on the top of the cover of the device, representing laser
radicalization.
Contents
WuHan Raycus Fiber Laser Technologies CO., LTD
Pulsed Fiber Laser User’s Guide
1. Description...................................................................................................................................1
1.1. Product description.............................................................................................................. 1
1.2. Actual configuration list......................................................................................................1
1.3. Environmental requirements and cautions.........................................................................1
1.4. Specifications....................................................................................................................... 2
2. Mounting..................................................................................................................................................... 2
2.1 Mounting dimensions.......................................................................................................... 2
2.2 Method of installation..........................................................................................................3
3. Control Interface................................................................................................................................... 4
4. Operation Regulations........................................................................................................................... 6
4.1 Pre-inspection.......................................................................................................................6
4.2 Operation procedures...........................................................................................................6
4.3 Cautions................................................................................................................................6
5. Instructions for warranty, return and maintenance.................................................................. 7
5.1 General warranty..................................................................................................................7
5.2 Limitations of warranty.......................................................................................................7
5.3 Service and repairs...............................................................................................................7
1. Description
1.1. Product description
Raycus pulsed laser is specially designed for laser making system with high speed and high
efficiency. It is an ideal high power laser source for industrial laser making system and other
applications.
Compared with conventional lasers, pulsed laser has some unique advantages in accelerating the
conversion efficiency of the pump light over 10 times higher, its automated design in low power
consumption and being proper for operating both in and outside the lab. Besides, it is exquisite
and convenient for its independence in placement, free time in using and facility in connecting to
equipment directly.
The device can emit 1060~1085nm wavelength pulsed light under the control of industrial
laser’s standard interface driven by 24VDC power source.
1.2. Actual configuration list
Items Quantity Remark
Fiber Laser module 1
User instruction 1
1.3. Environmental requirements and cautions
Pulsed laser should be driven by 24VDC±1V power source.
1) Attention: Make sure the wire of the device is properly grounded.
2) All the maintenance of the device should be done by Raycus, for there is no accessory
available provided inside. Please do not damage the labels or open up the cover in order to
prevent against electric shock, or any damage to the device will not be warranted.
3) The output head of the product is connected with a optical cable. Please be careful dealing
with the output head. Avoid dirt and any other contaminations. Please do use exclusive lens
paper when cleaning the lens. Please lid the laser with protective cover of the light isolator to
be against dirt when the laser is not installed in the device or not in working.
4) If the operating way to use the device fails to follow this instruction, the function of
protection produced by the device will be weakened. Therefore, it should be used under
normal conditions.
5) Do not install the collimating device into the output head when the laser device is in working.
6) The device has three fans at the rear panel to give off heat. In order to guarantee enough
airflow to help giving heat off, there is a space in width of 10cm for airflow in both the front
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WuHan Raycus Fiber Laser Technologies CO., LTD
Pulsed Fiber Laser User’s Guide
side and the rear of the device. Because the laser’s fans are working at blow condition, so if
laser is mounted in a cabinet with fans, the direction should be same as laser’s fans.
7) Do not look into the output head of the device directly. Please do wear appropriate laser
safety eyewear during the time when operating the device.
8) Make sure the pulse repetition rate is no lower than 300 kHz, because laser with high power
may cause damage to the device.
9) Maximum absence of the pulse is 50*10-6 s.
10) Power source interrupt will do great harm to the laser device. Please make sure the power
supply works in succession.
1.4. Specifications
Pulsed fiber laser 10W 20W 30W
Wavelength（nm） 1060~1085 1060~1085 1060~1085
Polarization Random Random Random
Optical isolator Yes Yes Yes
Nominal average output power (W) ≥10 ≥20 ≥30
Single pulse energy (mJ) @20kHz 0.5 1 1@30kHz
Beam quality（M2） <1.5 <1.8 <1.8
Beam Diameter（mm） 6～8 6～8 6～8
Pulse duration（ns）@20kHz <100 <120 <120@30kHz
Pulse repetition rate（kHz） 20 - 60 20 - 60 30 - 60
Output Power Tunability（%） 10-100 10-100 10-100
Output Fiber Cable length（m） 2.0 2.0 2.0
Working voltage （VDC） 24±1 24±1 24±1
Power consumption （20℃）（W） 120 200 300
Cooling Forced Air Cooled Forced Air Cooled Forced Air Cooled
Dimension W×D×H（mm） 260×391×120
Operating temperature 0℃～40℃
Store temperature -10℃～60℃
humidity 30%～85%
2. Mounting
2.1 Mounting dimensions
1) Fiber Laser module dimensions
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WuHan Raycus Fiber Laser Technologies CO., LTD
Pulsed Fiber Laser User’s Guide
2) Isolated output head dimensions
2.2 Method of installation
1) Fix hard the module to the bracket, keep the laser in adequate ventilation.
2) Connect the power line to 24VDC power and make sure enough DC output power is
guaranteed. Pay attention to the polarity of the electric current: anode-brown; cathode-blue;
yellow and green: PE.
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WuHan Raycus Fiber Laser Technologies CO., LTD
Pulsed Fiber Laser User’s Guide
GND
24V+
3) Make sure that the interface of the external controller matches the laser and the control cable
is connected to the laser’s interface well.
4) The bending radius of the delivery fiber should not exceed 15cm.
3. Control Interface
DB25 at the rear of the power module is the joint interface connecting control system with
laser system. Please make sure the connection is reliable before operation. Feet of the connector
are defined as follows.
PIN # Definition
1-8 Current settings of pump:
00H: zero power
01H
.................
FFH: Full power
MSB: PIN8
LSB: PIN1
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WuHan Raycus Fiber Laser Technologies CO., LTD
Pulsed Fiber Laser User’s Guide
10-15 Digital GND
16，21 Alarm signal
17 External 5V level
18 MO signal on/off
19 Laser on/off
20 Pulse repeating rate (5V level)
22 Lead light (5V level) optional
24 Analog GND
1) By combination of PIN1—PIN8 (TTL level), pump current of diode laser, i.e. the output of
laser power can be setting. By PIN1-PIN8 of 0～255，corresponding the laser power of 0～
100％ (the actual laser power may not be linear with these setting). For example:
Setting 1 Setting 2 Setting 3 Setting 4
PIN 1 0 0 0 0
PIN 2 0 0 0 0
PIN 3 0 0 0 0
PIN 4 0 0 0 0
PIN 5 0 0 0 1
PIN 6 0 0 1 1
PIN 7 0 1 1 1
PIN 8 1 1 1 1
current ~50 % ~75 % ~87.5 % ~93.75 %
2) PIN 10 to PIN 15、PIN 24 are digital GND and analog GND respectively.
3) PIN 18 is the MO on/off signal. PIN 19 is the laser on/off signal. High level switch on the
laser, low level switch off the laser. The two signal are all TTL level. Before switch on the
laser on/off signal (PIN 19), the MO signal must be switch on first, or the equipment can be
damaged. The MO signal (PIN 18) must be 5ms earlier than laser on/off signal (PIN 19).
4) PIN 20 is the pulse repeating rate (PRR, TTL level). The frequency range should be 30
kHz~60 kHz. If the PRR change during the work, it must be changed 5ms before the laser
on/off signal turn into high.
5) PIN17 is the continuous 5V level.PIN 22 is the guide laser(red diode)on/off signal. High level
switch on the guide laser while low level switch off the guide laser.
6) Alarm setting
PIN 16 PIN 21 Alarm item
Low Low Temperature alarm
Low High Normal
High Low High reflection alarm
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WuHan Raycus Fiber Laser Technologies CO., LTD
Pulsed Fiber Laser User’s Guide
High High MO alarm
4. Operation Regulations
4.1 Pre-inspection
1) Make sure whether the device appears to be in good condition, the output fiber is bended or
broken off.
2) Make sure signal line of laser and marking system are properly connected.
4.2 Operation procedures
1) starting procedures
Please make sure the control system is on when you turn on the fiber laser. Only after at least 1
minutes since the power worked on the system can the rest procedures be proceeded.
2) Frequency set introductions
For this special laser device, the frequency setting range is from 30KHz to 60KHz.
3) Laser marking checking
When the device is started successfully, please play the power down to zero without turning the
marking system on for the first time when the device is going to be tested. Then draw a quadrate,
marking continuously with playing the power slowly from zero up to 100% at the same time.
Meanwhile, use a ceramic material to observe the laser and the laser should be stronger and
stronger, otherwise shut down the device and check it. You can operate the marking system in
common order afterwards.
4.3 Cautions
1) Marking frequency should be in the range of 20kHz～60 kHz.
2) It is better not to modulate the frequency while marking.
3) Stop marking first before shutting the device off, then play the power down to zero and cut
the power off.
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WuHan Raycus Fiber Laser Technologies CO., LTD
Pulsed Fiber Laser User’s Guide
5. Instructions for warranty, return and maintenance
5.1 General warranty
All products are warranted by Raycus against defects and problems in materials and
workmanship during the warranty period according to the purchase order or specifications and
we guarantee the product will accord with the specification under normal use.
Raycus has the right to choose to repair or replace any product that proves to be defective in
materials and workmanship selectively during the warranty period. Only products with particular
defects are under warranty. Raycus reserves the right to issue a credit note for any defective
products produced in normal conditions.
5.2 Limitations of warranty
The warranty does not cover the maintenance or reimbursement of our product of which the
problem results from tampering, disassembling, misuse, accident, modification, unsuitable
physical or operating environment, improper maintenance, damages due to excessive use or not
following the instructions caused by those who are not from Raycus. Customer has the
responsibility to understand and follow this instruction to use the device. Any damage caused by
fault operating is not warranted. Accessories and fiber connectors are excluded in this warranty.
According to the warranty, client should write to us within 31days since the defect is discovered.
This warranty does not involve any other party, including specified buyer, end-user or customer
and any parts, equipment or other products produced by other companies.
5.3 Service and repairs
Raycus is responsible for all the maintenance, for there is no accessory available inside for users
to use. Please contact Raycus as soon as possible when problems under warranty about
maintenance happen to the product. The product returned with permission should be placed in a
suitable container. If any damage happen to the product, please notify the carrier in document
immediately.
All the items about warranty and service above provided by Raycus are for uses’ reference,
formal contents about warranty and service are subject to the contract.
Wuhan Raycus Fiber Laser Technologies Co., Ltd.
All Rights Recerved.
