JPT YDFLP-E-20-M7-S-R User manual

YDFLP-E-20/30-M7 User Manual
File Number: J-SI-0036
1
Pulsed Fiber Laser
YDFLP-E-20/30-M7-S-R
USER MANUAL
Version 1.4

YDFLP-E-20/30-M7 User Manual
File Number: J-SI-0036
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Safety Information
Please read this manual carefully before operating the YDFLP fiber lasers.
In order to ensure the safe operation and optimal performance of the product, please
strictly follow the safety notification below.
●Make sure that the 24V DC power supply is connected in the correct way. Inappropriate
connection might damage the product.
●To prevent electrical shock, please do not remove the laser cover. Warranty will be
invalid if warranty label is removed.
●Please wear appropriate laser safety goggle (see below Fig.1.) before emitting the laser.
We recommend OD4+ goggle or better. This laser module carries a Class 4 laser rating,
which emits invisible 1064nm wavelength laser radiation with average output power
over 20W and peak power over 10kW. Both direct beam and reflected beam will cause
permanent damage to the eyes, skin, and might cause fire.
●Caution: Even at 0% power emitting, the average output laser power is still around
100mW.
Table 1 Safety Labels and Labeling Locations
Symbols
Information
Laser Warning Triangle -Label of
laser emission
(Attached on the cover plate, near
the output fiber）

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Compliance Label
(Attached on the cover plate)
Product Rating Information
(Attached on the cover plate)
Figure 1 Laser Safety Goggle

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Contents
SA FE TY IN FO RM ATION ...................................................................................................................................1
1. PRODUCT INTRODUCTION................................................................................................................................4
1.1 PRODUCT DESCRIPTION........................................................................................................................................ 4
1.2 PACKAGING LIST.................................................................................................................................................. 4
1.3 OPERATION CONDITIONS AND SAFETY INSTRUCTIONS........................................................................................ 4
1.4 YDFLP PRODUCT SERIES NAMING CONVENTION............................................................................................... 5
1.5 TECHNICAL SPECIFICATIONS................................................................................................................................ 6
2. INSTALLATION...................................................................................................................................................... 9
2.1 DIMENSION........................................................................................................................................................... 9
3. LASER INTERFACE.............................................................................................................................................10
3.1 POWER SUPPLY CABLE AND INTERFACE INSTALLATION................................................................................... 10
3.2 RS232 CONNECTOR............................................................................................................................................10
3.3 CONTROL INTERFACE......................................................................................................................................... 11
4. JPT GUI LASER TESTING SOFTWARE-TYPEE........................................................................................... 16
4.1 GUI INTRODUCTION........................................................................................................................................... 17
4.2 LASER MONITORING FUNCTION...................................................................................................................... 23

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1. Product Introduction
1.1 Product Description
JPT M7 Series fiber laser control with standard DB25 interface and powered with 24V DC.
It is designed for high-speed and precise marking application. The pulse response and
performance are much better comparing to similar products. Significantly compact size is ideal
for small marking system.
Photographs of typical M7 type fiber lasers are shown in Fig.2 ( For the specific appearance,
please refer to the appearance of the product shipped):
Figure 2 YDFLP-E-20/30-M7-S-R Physical Picture
1.2 Packaging List
Table 2 Packaging List of YDFLP
Items
Quantity
Fiber Laser Source
1
Specification List(tested)
1
Packing List
1
Precautions
1
1.3 Operation Conditions and Safety Instructions
Please read the following instructions carefully. Product reliability and lifetime probably be
affected if not following the user manual.
1.3.1. Make sure that the 24VDC power supply is connected in the correct way. Wrong
connection or input voltage might damage the product.

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1.3.2. Make sure that the bending diameter of the fiber cable is larger than 15cm in anytime.
Otherwise power will decrease or the laser may even be damaged.
1.3.3. The speed of the fan is adjustable according to ambient temperature. Make sure that
minimum10cm air gaps behind and in front of the fiber laser. And the air flow direction of the
system should be the same as the laser. Short ventilation distance and wrong air flow direction
will lead to the laser temperature rises.
1.3.4. The required running ambient temperature range is 0~40℃. Laser will get internal
alarm if out of this range. It is recommended that the operating temperature range of the laser is
10-30℃. Good heat dissipation is helpful to prolong the working life of the laser.
1.3.5. Please keep the fiber laser source clean especially the laser output window. Please
remember to cover the output window when it’s exposed to the open environment. Dust on the
window will cause heat and damage the lens, which results in output power decrease even laser
damage.
1.3.6. Please make sure that the power is off before installing and uninstalling.
1.3.7. Please do not look at the output window anytime when power on, and wear laser
safety goggle when operating the fiber laser.
1.3.8. The pulse duration of YDFLP-E-20&30-M7-S-R is 2~500ns. Other pulse width is
available for customization request.
1.4 YDFLP Product Series Naming Convention
Naming Convention for Pulsed Fiber Laser
YDFLP-X-XX-XX-X-X
1 2 3 4 5 6
1.4.1. Product Name：Ytterbium Doped Fiber Laser Pulse (YDFLP)
1.4.2. Product Type
1.4.3 Average Output power
1.4.4. Pulse Characteristics:
M series - adjustable pulse width
LP series - fixed pulse width
1.4.5. Optical Fiber attributes：
S: Single mode, M²＜1.4
L: Low mode, M²＜1.8
H: High mode, M²＞2.5
1.4.6. Additional function：

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R: Built-in red pilot laser
Examples：
YDFLP-200-M7-H-R: Customized M7, using high mode type of optical fiber with the nominal
output power 200W, built-in red pilot laser.
1.5 Technical Specifications
Table 3 Specifications of the YDFLP-E-M7-S-R fiber laser
Characteristic\ Laser Type
YDFLP-E-20-M7-S-R
YDFLP-E-30-M7-S-R
M²
<1.4
Delivery Cable Length
m
2
Average Output Power
W
>20
>30
Maximum Pulse Energy
mJ
0.8
Pulse Repetition Rate Range
kHz
1-4000
Pulse Width
ns
2-500
Output Power Instability
%
<5
Cooling Method
Air-cooled
Power Supply Voltage(DC)
V
24
Power Consumption
W
<110
<150
Environment supply current
A
>5
>7
Central Wavelength
nm
1064
Emission Bandwidth@3dB
nm
<15
Polarization
Random
Anti-Reflection Protection
Yes
Built-in Red Beam
Yes
Output Beam Diameter
mm
7.0±0.5
Output Power Tuning Range
%
0～100
Ambient Temperature Rang
℃
0～40
Storage Temperature Range
℃
-10～60
Dimensions
mm
245*200*65
Package Size
mm
365*310*135
Weight
Kg
Net：3.75 Gross：4.35
Net： 4.25 Gross： 4.8

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Table 4 YDFLP-M7-S Cut-off Frequency Value（kHz）
YDFLP-E-20&30-M7-S-R
Pulse Width
（ns）
Cut-off frequency（kHz）
Maximum
pulse
frequency
（kHz）
YDFLP-E-20-M7-S-R
YDFLP-E-30--M7-S-R
1（CW）
-
-
-
2
850
1300
4000
4
500
750
4000
6
320
480
4000
9
250
375
4000
13
170
250
3000
20
115
170
3000
30
90
135
3000
45
75
110
2000
60
65
100
2000
80
60
90
2000
100
55
80
1000
150
30
45
1000
200
25
37
1000
250
25
37
900
350
25
37
600
500
25
37
500
*For laser safety and long lifetime concern, when pulse width set ≥80ns, frequency range will be
limited at 400kHz.
* The laser will have expected output power when working above the cut-off frequency. When
working below the cut-off frequency, the power will drop accordingly to maintain the output
peak power. Below chart shows the relationship between frequency and output power:
Figure 3 Cut-off Frequency & Output Power Relationship Charts
Power
Set Power
Cut-off Frequency
Frequency

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Figure 4 YDFLP-E-20&30-M7-S-R Output Waveform Graph.

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2. Installation
2.1 Dimension
2.1.1 Dimension of main body
Figure 5 YDFLP-E-20/30-M7-S-R Laser Module Dimensions (Unit: mm)
2.1.2 Mechanical Dimension of the output isolator(round shape).
Figure 6 YDFLP-E-20/30-M7-S-R Standard Isolated Output Head Dimensions (Unit: mm)
The isolator head is only for reference. Please be subject to the actual product.

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3. Laser Interface
3.1 Power Supply Connector
The length of standard power cord for laser is around 1250mm. Please refer to Figure 12 &
Table 6 in below to install the power cable to the 24V DC power supply，and ensure the DC
power supply can provide enough output power. Please also note the polarity of the cable when
connecting.
Figure 7 Diagram of the power supply cable
Table 5 Definition of power supply cable
PIN#
Description
EARTH
Ground wire
+
24VDC Positive
-
24VDC Negative
Note: Housekeeping (main and control power supply independent) function can be customized.

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3.2 RS232 Connector
Figure 8 RS232 connector-DB9
Table 6 RS-232 Interface Definition
PIN#
Description
1,4,6-9
No need to connect
2
RxD
3
TxD
5
GND
3.3 Control Interface
DB25 behind the power module is the interface used to connect the control system (such as
marking machines) to the laser system. Please make sure that the interface is connected firmly
before the operation.
The PIN is defined as shown in Figure 9 and Table 7.
Figure 9 DB25 Interface
Table 7 DB25 interface definition
DB25 PIN #
Description
1-8
IP0-IP7 Power Control
9
Signal of power save, (this function is available in GUI) Rising

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edge is effective.
10-15
GND
Description: PIN10-15 have connected with each other inside fiber
laser, control card GND only need to control with one of them.
16，21
Warning signal
Description:16 low level,21 high level: Normal
16 low level,21 low level: temperature alarm
19
Laser starting signals (PA)
shows that high level is open and low level is just as off.
The system can receive the PA only after the laser is on for 12s
and the MO is H.
20
Frequency Modulation (TTL)
22
A. Control the pulse width ENABLE
B. High Level: Red Beam Turn On;
Low Level: Red Beam Turn Off.
23
Emergency Stop signal
High level: Normal; Low level: Emergency Stop
(this function is available in GUI)
Emergency top signal for low to high, need to detect the rising
edge of MO firstly, then the laser come out again.
18
MO signal for turn on/off
High level is just as open and low level is just as off.
The laser will shooting after turning on the laser for 12s together
with the rising of MO
17,24,25
No need to connect
Notes:DB25 5.4v >high level>4.6V 0.5v>low level>0v
Note: Red beam Pin22 signal has higher priority than MO and PA signal. When Pin22 signal is
high, MO and PA signal will be shut down internally. The laser can be emitted by restarting MO
and PA after Pin22 signal is low.

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3.3.1 Interface Setting
Please set the current of pump laser diode which is the output power through a combination of
TTL signals of PIN1~8. The encoding can be set within the range of 0~255 which is
corresponding to the 0~100% power output power (the actual optical power output may not be a
linear relationship with these settings). Please refer to the description in table 8:
Table 8 Current setting of the MOPA fiber laser
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 %

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3.3.1.1 DB25 Sequence
Figure 10 Diagram of DB25 Control Time Sequence
A：12 seconds System initialization time
B：MO and PA signal delay time: range(8ms-35ms), recommend 8ms.
C：Switching off PA should be earlier than MO or at the same time.
D：Frequency sampling time under internal frequency mode, at least 1 complete frequency
period before turning on the laser (PA).
E：SIMMER value. The first pulse energy can be adjusted via GUI software.
Fiber laser control system self-locking: If fiber laser is on abnormal status (high temperature,
low power supply etc.), it will stop working to protect the whole system. Please restart the fiber
laser.
3.3.1.2 Pulse Width Control
PIN2, PIN3 and PIN22 pins of DB25 control interface are not only used for basic control of
laser, but also for pulse width control. Table 9 shows the pulse width control pin and signal
description of M7 laser.
Table 9 Pulse Width Control Pin and Signal Description of M7 Series Laser
PIN. #
Item
Description
2
Serial Input
When fiber laser is serial input, setting data bits synchronize with
the rising edge of serial clock.
3
Serial Clock
Serial digital clock, 8kHz≦Clock Frequency≦10kHz, 10KHZ is
recommended.
SUPPLY VOLTAGE 24V
PIN18 MO
PIN19 PA
PIN20 PRR
PUMP CURRENT
LASER OUTPUT

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22
Enable
Pulse width control function:
High: Enable, Pin2 and Pin3 to control the pulse width
Low or Not connection: Disable
Pulse width control instruction
Send instruction to Pin2 of DB25 connector and send clock signal to Pin3 at the
same time. The instruction description will be transmitted in binary form, with its most
significant bit transmitted first.
The instruction structure transmitted by the user to the laser is as follows:
0xA5 (A5h) is the active pulse width control byte. 0xA5 and all subsequent data
bytes are input to Pin2 serial input.
Data length of input laser is 4-bit bytes.
The first byte of instruction code is 0x01.
The Pin22 signal needs to be turned on 10us in advance before sending Pin2 and
Pin3 signals. After finished pulse width adjustment, Pin2 and Pin3 signals need ≥10us delay
before turning off Pin22 signal (as shown in Figure 14).
All instruction design starts with byte 0xA5.
Set Pin19 low before using pulse width control function.
Pulse width control instruction code
Table 10 Pulse Width Control Instruction Code
Instruction
Instruction Code
Description
Set-up pulse width
0x01
Set-up pulse width（ns）
It takes less than 50ns to finish the fiber laser pulse width initialization.
Remarks: If Instruction code transmit 3 * 0x01 instruction, it will not be accepted by the laser.
Pulse width time sequence
The following figure is an example to illustrate the sampling series diagram with a
pulse width of 200ns. The series of 0x01 bytes of instructions is as follows:
Example: 0xa5 → 0x01 → 0x00 → 0xc8
0xa5: for activating pulse width control instruction
0x01: for setting pulse width instruction
0x00 and 0xc8: set the pulse width to 200ns.
0xA5
Instruction Code

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Figure 11 Diagram of 200ns Pulse Width Control Sequence
T1: the duration is 10us, and the enabling signal of pulse width adjustment needs to be turned on
10us in advance before adjusting the serial input and the serial clock signal.
T2: the duration is 10us. After pulse width adjustment, it needs to delay 10us before closing.
If the user sets 350ns pulse width, the input instruction is: 0xa5 → 0x01 → 0x01 → 0x5e,
where 0x01 and 0x5e represent the pulse width value 350.
The parameter of this instruction is the binary value of pulse width.
The user can compile any pulse width, but the laser only accepts the specified pulse width
(refer to the specifications of various versions for specific pulse width). If the given pulse
width is out of the range, the laser will output with the close pulse width value.
4. JPT GUI Laser Testing Software-TypeE
TypeE is designed for M7 series laser. It has multiple functions including laser control,
setting the default parameters, setting the control mode, alarm monitoring, DB25 interface
monitoring, internal parameters monitoring etc. TypeE also records error events which caused
system self-locking.

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4.1 GUI Introduction
4.1.1 Serial COM Port
4.1.1.1 Connecting method
Using USB TO RS232 cable to connect PC’s USB to the Laser’s RS-232 connector.
Click and open the Serial Com Number as follow:
Figure 12 The Selection of GUI Serial Port Connection
After connecting the data line, check the serial port number: my computer →
properties →hardware →device manager →

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4.1.1.2. Connecting State
Figure 13 GUI Disconnected State
Figure 14 GUI Connected State

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4.1.2 GUI control function
4.1.2.1 GUI control the emission
1Choose the GUI control Mode
Figure 15 GUI Full Ctrl mode
GUI Full Control mode(GUI Ctrl)：When selecting the GUI full Control mode, all the
parameters of Internal/External Control mode (EG. power, frequency, pulse width, PA, MO) will
change to Internal Control mode. This mode will not be preserved after power off. It will change
to “Free Ctrl” mode after serial port closed, and all the parameters of Internal/External Control
mode will be changed to the previous free control mode setting. User can select this mode to test
the emission of laser temporarily.
Figure 16 Free Ctrl mode
Free Control Mode (Free Ctrl): When selecting free Control mode, user can choose parameter
control mode individually. In this mode, all the settings will be preserved after power off. EG.
User can select this mode to lock a specific frequency or output power individually when don't
want to control it by external signal.
2Set parameters and emitting