450nm Blue Lasers

450nm Blue Lasers

Keywords: blue lasers, fiber-coupled, 450nm laser
Mar 30, 2021 View: 4546 Data Sheet

Blue laser has superior efficiency. Physics dictates the efficiency of energy absorption. Compared to industry-standard IR wavelength, blue absorption is maximum 66x better and blue laser enable process speed gains of 2-10x.

1. STN Series Blue Lasers

1.1 STN Series Fiber Coupled Blue Lasers

High brightness, fiber delivered blue lasers for metals processing

The STN Series Fiber Coupled Blue Lasers are high brightness blue lasers that process metals better and more efficiently than IR or green lasers and integrate with standard scanning systems. This enables them to service a wide range of welding, additive manufacturing, and other materials processing applications in batteries, e-mobility and consumer electronics. This series combined with scan head delivery, offers an ideal laser for metal processing due to the high absorption of blue light by metals: including 13x for copper and 3x for aluminum. Reducing the excess heat input compared to infrared lasers enables spatter-free and defect free welds with the highest possible mechanical and electrical performance. With available output powers from 125W to 1kW, these blue lasers can power mass production solutions for <1mm copper and aluminum welds which require a large process window and demand extremely high yields.

Key Benefits

  • High quality low to spatter-free welding

  • Dramatically improves process performance and process window

  • Enables welding processes not possible or with low yields with IR

Application

  • Batteries and energy storage

  • E-mobility

  • Consumer electronics

  • Interconnects

  • Electronics packaging

  • 3D metal printing (powder bed fusion and wire feed)

OpticalUnitsSTN-125-FSTN-250-FSTN-500-FSTN-1000-F
Wavelengthnm~444~444~444~444
Bandwidthnm±15±15±15±15
Output PowerW1252505001000
Power Adjustment%20-10020-10020-10020-100
Power Stability (8 hours)%±1.5 at full power
Fiber Diameter (Core)micron100100200200
Fiber Numerical ApertureN/A0.220.220.220.22
Beam Parameter Product
(10-90% enclosed power)
mm.mrad551515
Standard Fiber Length
(Connector Type)
m5 (QBH). Options for 10 and (QD)
Electrical
Operating CurrentA<18<18<8 per phase<8 per phase
Operating VoltageV180/264 (47-63Hz) 1ph 3 wires208-240 (50/16Hz, 3ph 4 wires)
External Control Inputs
Laser Enable (High on)
CW Analog Control
Modulation
Communications

V
V
kHz

+5/+24
0-10
5
Ethernet

+5/+24
0-10
5
Ethernet

+5/+24
0-10
5
Ethernet

+5/+24
0-10
5
Ethernet
Safety Interlocks
Interlock Voltage (Laser Enable)
Open Circuit (Laser Shut-down)

V

V

24

0

24

0

24

0

24

0
MechanicalDriver (19" Rack)Driver (Stand Alone)
Height, Width, Depthmm178 × 443 × 635641 × 671 × 1183
Weightkg2121~160~180
IP Rating
IP20/NEMA 1IP52/NEMA 12
Operating Conditions
TemperatureDeg C15-2515-2515-2515-25
Relative Humidity
(non-condensing)
%0-900-900-900-90
Storage and Transport
TemperatureDeg C0-400-400-400-40
Cooling
Heat LoadkW/Rton3/0.853/0.854/1.28/2.3
Min Flow RateLpm/gpm6/1.56/1.516.5/4.333/8.6
Supply TemperatureDeg C15-2515-2520-2420-24
Max Pressurebar/psi5.5/805.5/805.5/805.5/80

1.2 STN Series Free Space Blue Lasers

High brightness, free space output blue lasers for metals processing

The STN Series Free Space Blue Lasers are high brightness, blue lasers that process metals better and more efficiently than IR or green lasers and integrate with standard scanning systems. This enables them to service a wide range of welding, additive manufacturing, and other materials processing applications in batteries, e-mobility and consumer electronics. The high brightness of this series, combined with scan head delivery, offers an ideal laser for metal processing due to the high absorption of blue light by metals: including 13x for copper and 3x for aluminum. Reducing the excess heat input compared to infrared lasers enables spatter-free and defect free welds with the highest possible mechanical and electrical performance. With available output powers from 125W to 250W, these blue lasers can power mass production solutions for <500micron copper and aluminum welds which require a large process window and demand extremely high yields.

Key Benefits

  • Compact footprint to simplify integration

  • Capable of direct interface to standard scanners

  • All semiconductor laser reliability and lifetime

  • Lower cost of ownership than fiber and solid-state lasers

  • Spatter and defect free conduction mode welds

  • Higher weld joint densification

Application

  • Batteries for consumer electronics

  • Consumer electronics

  • Interconnects

  • Electronics packaging

  • Powder bed fusion 3D metal printing

OpticalUnitsSTN-125STN-250
Wavelengthnm~444~444
Bandwidthnm±15±15
Output PowerW125250
Power Adjustment%20-10020-100
Power Stability (8 hours)%±1.5 at full power
Collimator Aperture Diametermicron20 or 3020 or 30
Beam Parameter Product
(10-90% enclosed power)
mm.mrad<5<5
Electrical
Operating CurrentA<18<18
Operating VoltageV180/264 (47-63Hz) 1ph-3 wires
External Control Inputs
Laser Enable (High on)
CW Analog Control
Modulation
Communications

V
V
kHz

+5/+24
0-10
5
Ethernet

+5/+24
0-10
5
Ethernet
Safety Interlocks
Interlock Voltage (Laser Enable)
Open Circuit (Laser Shut-down)

V

V

24

0

24

0
MechanicalDriver/Head with telescope
Height, Width, DepthmmH: 178/170 - W:443/100 - D: 635/410
Weightkg2111.4
Power Supply
19” Rack
IP Rating
IP20/NEMA 1
Operating Conditions
TemperatureDeg C15-2515-25
Relative Humidity
(non-condensing)
%0-900-90
Storage and Transport
TemperatureDeg C0-400-40
Cooling
Heat LoadkW/Rton3/0.853/0.85
Min Flow RateLpm/gpm6/1.56/1.5
Supply TemperatureDeg C15-2515-25
Max Pressurebar/psi5.5/805.5/80

STK Series Blue Diode Lasers

1.     500W-2000W Blue Diode Lasers

Compared with traditional laser products, our blue diode laser has a higher absorption rate for materials such as copper and aluminium, and can process non-ferrous metals with lower power. Our blue laser is more compact and easier to use. With flexible laser output mode, it can be integrated into the processing system conveniently.

Our blue lasers can be used in wide applications like welding, cladding, surface treatment, lithium-ion battery manufacturing, etc. Our professional laser application team, with good knowledge and experience, provides the best laser system solution for our customers all around the world.

Features:

  • Good beam quality

  • High electro-optical conversion efficiency

  • Excellent power stability

  • Two operation modes: CW and modulation

  • Excellent system reliability

  • Max modulation frequency up to 5kHz

  • Easy-to-use control interface

  • Cost effective and maintenance free

Application:

  • Welding

  • Additive manufacturing

  • Surface treatment

  • Lithium-ion battery manufacturing

Part numberSTK-450-500-330STK-450-1000-400STK-450-1500-400STK-450-2000-600
Power500W1000W1500W2000W
Wavelength450±5 nm450±5 nm450±5 nm450±5 nm
Output Fiber Core   Diameter330μm400μm400μm600μm
Output Cable Length10m or Customized10m or Customized10m or Customized5m or Customized
Output Cable   ConnectorQBHQBHQBHQBH
Aiming BeamRedRedRedRed
Operation ModeCW or modulationCW or modulationCW or modulationCW or modulation
PolarizationRandomRandomRandomRandom
Power Stability (25>℃)<±1.5% (2h)<±1.5% (2h)<±1.5%   (2h)<±1.5% (2h)
Power Adjustment   Scope10%-100%10%-100%10%-100%10%-100%
Max Modulation   Frequency5kHz5kHz5kHz5kHz
Physical Size (H×W×D)798×420×900mm 798×420×900mm 798×420×900mm 800×750×1200mm
Weight< 130 kg< 140 kg< 140 kg< 140 kg
Power SupplyThree Phase, 380±20 V, AC,   PE, 50/60 HzThree Phase, 380±20 V, AC,   PE, 50/60 HzThree Phase, 380±20 V, AC,   PE, 50/60 HzThree Phase, 380±20 V, AC,   PE, 50/60 Hz
Power Consumption3.5kW7.0kW9.0kW10.0 kW
Control InterfaceRS232/ADRS232/ADRS232/ADRS232/AD
Minimum Water-Cooling   Capacity3.0kW6.0kW8.0kW8.0 kW
Temperature Settings25>℃ (Laser Module), 30>℃ (QBH)25>℃ (Laser Module), 30>℃ (QBH)25>℃ (Laser Module), 30>℃ (QBH)25>℃ (Laser Module), 30>℃ (QBH)
Cooling Tubes SizeI.D. Φ25mmI.D. Φ25mmI.D. Φ25mmI.D. Φ32mm
Cooling Water Flow   Rate (Laser Module)>20L/min>25L/min>25L/min>50L/min
Cooling Water Flow   Rate (QBH)1.5~2.0L/min1.5~2.0L/min2.0L/min1.5~2.0L/min

Note: The back reflection will affect the performance and life of the direct diode laser. It is necessary to use the output laser when it is 8-10° away from the vertical direction of the surface.

2. 100W~200W Blue Diode Lasers

2.1 200W Blue Diode Lasers

Features:

  • 445nm wavelength

  • 100W/150W/200W output power

  • 105μm fiber core diameter

  • 0.22NA

  • Cooling mode: water cooling

Applications:

  • Material Processing

  • 3D Printing

Specification (20℃)SymbolSTK- 445-200-105
MinimumTypicalMaximum
Optical Data (1)
Total   CW Output Power (W)Pbol (4)200--
Number of submodulespcs-4-
Submodule CW Output Power (W)Po-50-
Center Wavelength (nm)λ­c445±20445±20445±20
Spectral Width (FWHM), (nm)△λ­-6-
Wavelength Shift with Temperature,   (nm/℃)△ λ­/△T-0.1-
Wavelength Shift with Current, (nm/A)△ λ­/△A-1-
Electrical Data
Electrical-to-Optical Efficiency, %PE-30-
Operating Current, (A)Ibol (4)-33.5
Threshold Current, (A)Ith-0.35-
Operating Voltage (single module),   VVop-5260
Slope Efficiency (single module),   (W/A)η-18.5-
Power Supply Mode--4 modules-
Fiber Data
Core Diameter, (μm)Dcore-105-
Numerical ApertureNA-0.22-
Minimum Bending Radius, (mm)-50--
Fiber Length, (m)-
5.5
Fiber Termination--HP-SMA905-
Thermistor, (KΩ)/β(25℃℃)Rt-10±3%/3450-
ESD (V)Vesd--500
Storage Temperature (2), (℃)Tst-20
70
Lead Soldering Temp, (℃)Tls--260
Lead Soldering Time, sect--10
Operating Temperature (3), (℃)Top15-30
Relative Humidity, %RH15-75

Remark:

(1) Data measured under operation output at 200W@20℃℃.

(2) A non-condensing environment is required for operation and storage.

(3) Operating temperature defined by the thermistor. Acceptable operating range is 15℃℃~30℃℃, but performance may vary.

(4) Product delivery qualification standards: Ibeginning of life ≤ 3.5A Pbeginning of life ≥ 200W.

(5) Within the warranty period, the product is considered qualified with Iend of life =3.5A Pend of life 160W.

2.2. 150W Blue Diode Lasers

Specification (20℃)SymbolSTK- 445-150-105
MinimumTypicalMaximum
Optical Data (1)
Total   CW Output Power (W)Pbol (4)150--
Number of submodulespcs-3-
Submodule CW Output Power (W)Po-50-
Center Wavelength (nm)λ­c445±20445±20445±20
Spectral Width (FWHM), (nm)△λ­-6-
Wavelength Shift with Temperature,   (nm/℃)△ λ­/△T-0.1-
Wavelength Shift with Current, (nm/A)△ λ­/△A-1-
Electrical Data
Electrical-to-Optical Efficiency, %PE-30-
Operating Current, (A)Ibol (4)-33.5
Threshold Current, (A)Ith-0.35-
Operating Voltage (single module),   VVop-5260
Slope Efficiency (single module),   (W/A)η-18.5-
Power Supply Mode--3 modules-
Fiber Data



Core Diameter, (μm)Dcore-105-
Numerical ApertureNA-0.22-
Minimum Bending Radius, (mm)-50--
Fiber Length, (m)-
5.5
Fiber Termination--HP-SMA905-
Thermistor, (KΩ)/β(25℃℃)Rt-10±3%/3450-
ESD (V)Vesd--500
Storage Temperature (2), (℃)Tst-20
70
Lead Soldering Temp, (℃)Tls--260
Lead Soldering Time, sect--10
Operating Temperature (3), (℃)Top15-30
Relative Humidity, %RH15-75

Remark:

(1) Data measured under operation output at 150W@20℃.

(2) A non-condensing environment is required for operation and storage.

(3) Operating temperature defined by the thermistor. Acceptable operating range is 15℃℃~30℃℃, but performance may vary.

(4) Product delivery qualification standards: Ibeginning of life ≤ 3.5A Pbeginning of life ≥ 150W;

(5) Within the warranty period, the product is considered qualified with Iend of life =3.5A Pend of life 120W.

2.3 100W Blue Diode Lasers

Specification (20℃)SymbolSTK- 445-100-105
MinimumTypicalMaximum
Optical Data (1)
Total   CW Output Power (W)Pbol (4)100--
Number of submodulespcs-2-
Submodule CW Output Power (W)Po-50-
Center Wavelength (nm)λ­c445±20445±20445±20
Spectral Width (FWHM), (nm)△λ­-6-
Wavelength Shift with Temperature,   (nm/℃)△ λ­/△T-0.1-
Wavelength Shift with Current, (nm/A)△ λ­/△A-1-
Electrical Data
Electrical-to-Optical Efficiency, %PE-30-
Operating Current, (A)Ibol (4)-33.5
Threshold Current, (A)Ith-0.35-
Operating Voltage (single module),   VVop-5260
Slope Efficiency (single module),   (W/A)η-18.5-
Power Supply Mode--2 modules-
Fiber Data



Core Diameter, (μm)Dcore-105-
Numerical ApertureNA-0.22-
Minimum Bending Radius, (mm)-50--
Fiber Length, (m)-
5.5
Fiber Termination--HP-SMA905-
Thermistor, (KΩ)/β(25℃℃)Rt-10±3%/3450-
ESD (V)Vesd--500
Storage Temperature (2), (℃)Tst-20
70
Lead Soldering Temp, (℃)Tls--260
Lead Soldering Time, sect--10
Operating Temperature (3), (℃)Top15-30
Relative Humidity, %RH15-75

Remark:

(1) Data measured under operation output at 100W@20℃℃.

(2) A non-condensing environment is required for operation and storage.

(3) Operating temperature defined by the thermistor. Acceptable operating range is 15℃℃~30℃℃, but performance may vary.

(4) Product delivery qualification standards: Ibeginning of life ≤ 3.5A Pbeginning of life ≥ 100W;

(5) Within the warranty period, the product is considered qualified with Iend of life =3.5A Pend of life 80W.

Packaging Dimension:

1. STK Series blue laser consists of up to 4 submodules(50W per module). Power can be supplied separately or in series.

2. STK Series blue laser cooling water inlet and outlet size: Outer 10mm* Inner 6.5mm.The water flow should be at least 5L/min.

3. *: Optional functions.

Operating Notes

Applications:

  • Avoid eye and skin exposure to direct radiation during operation.

  • ESD precautions must be taken during storage, transportation and operation.

  • Short circuit is required between pins during storage and transportation.

  • Please connect pins to wires by solder instead of using socket when operation current is higher than 6A. Soldering point should be close to the root of the pins. Soldering temperature should be lower than 260 and time shorter than 10 second.

  • Make sure the fiber output end is properly cleaned before operation of laser. Follow safety protocols to avoid injury when handling and cutting the fiber.

  • Use constant current power supply to avoid surge current during operation.

  • Laser diode must be used according to the specifications.

  • Laser diode must work with good cooling.

  • Operation temperature ranges from 15 to 30℃

  • Storage temperature ranges from -20 to +70℃

3.   <100W Fiber-coupled Blue Lasers

The STK series fiber-coupled blue lasers are manufactured by adopting specialized fiber-coupling techniques, resulting in high efficiency, stability and superior beam quality. The asymmetric radiation from the laser diode chips are coupled into an output fiber with small core diameter by using special micro optics. Their prices are reasonable and cheaper in the market.

Part NumberSTK450FFBFN-0.8WSTK445F03N-3WSTK445FTRFN-20WSTK445FTRFN-50W
Optical ParameterLaser power(W)0.832050
Wavelength(nm)450445445445
Tolerance(nm)±10±10±10±10
Spectral width(nm)<6<6<6<6
Temperature drift (nm/K)0.30.10.10.1
Fiber DataCore dia.(um)105105105200
NA0.220.220.220.22
Fiber Length (m)1.01.03.53.5
ConnectorNILSMA905SMA905SMA905
ThermistorK Ohm
option1010
Electrical ParameterOperation(A)1.03.02.52.8
Threshold current(A)0.250.30.30.3
Operation voltage(V)4.85.24181
OthersOperation temp.(oC)15-3515-3515-3515-35
Store temp.(oC)-20-+70-20-+70-20-+70-20-+70
Dimension(mm)30x12.7x14.820x13.6x16143x68x37143x68x37
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