Free-space Laser Diodes

  • Update:Nov 12, 2020
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We have been specializing in design, development and manufacturing of high power laser diodes from 905 to 1800 nm wavelengths using MOCVD-grown hetero structures based on In-Ga-Al-As-P solid solutions for more than 30 years no

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STU Series Diode Lasers (UV to IR wavelength, free space)

UV laser diode

With over 40 years of considerable experience in photonics industry, we provide varies products selection in a wide wavelength range from violet to infrared for a broad range of applications such as display, medical, industrial tools(sensor and leveler), printer and more.

Part Number

Wave-length (nm)

Transverse Mode

Laser Power (mW)

Package

Beam Div. (//, deg)

Beam Div. Perp. (deg)

Monitor PD

STU-HL37013MG

375

Multi

200

MG(φ5.6㎜)

14

50

Without

STU-HL40041MG

404

Multi

150

MG(φ5.6㎜)

13

45

With

STU-HL40053MG

404

Multi

400

MG(φ5.6㎜)

13

42

Without

STU-HL40093MG

404

Multi

400

MG(φ5.6㎜)

13

42

Without

STU-HL40033G

405

Multi

1,000

G(φ9.0㎜)

13

42

Without

STU-HL40063MG

405

Multi

600

MG(φ5.6㎜)

13

42

Without

STU-HL40065MG

405

Multi

600

MG(φ5.6㎜)

13

42

With

STU-HL40071MG

405

Single

300

MG(φ5.6㎜)

6

15

With

STU-HL40085G

405

Multi

1,000

G(φ9.0㎜)

13

42

With

STU-HL40103HD

405

Multi

Pulse 3,500

HD(φ9.0㎜)

13

45

Without

STU-HL40113MG 405 Multi 600 MG(Φ5.6mm) 13 45 Ithout

STU-HL40115MG

405

Multi

600

MG(φ5.6㎜)

13

45

With

STU-HL63163DG

633

Single

100

DG(φ5.6㎜)

8.5

18

Without

STU-HL63101MG

637

Single

5

MG(φ5.6㎜)

8

34

With

STU-HL63102MG

637

Single

5

MG(φ5.6㎜)

8

34

With

STU-HL63142DG

637

Single

100

DG(φ5.6㎜)

8

18

With

STU-HL63253MG

637

Multi

450

MG(φ5.6㎜)

8.5

33

Without

STU-HL63283HD

637

Multi

1,200

HD(φ9.0㎜)

10

33

Without

STU-HL6388MG

637

Multi

250

MG(φ5.6㎜)

11

40

Without

STU-HL6312G

638

Single

5

G(φ9.0㎜)

8

31

With

STU-HL63133DG

638

Single

170

DG(φ5.6㎜)

9

17

Without

STU-HL63192DG

638

Multi

700

DG(φ5.6㎜)

9

35

With

STU-HL63193MG

638

Multi

700

MG(φ5.6㎜)

9

35

Without

STU-HL6319G

638

Single

10

G(φ9.0㎜)

8

31

With

STU-HL6320G

638

Single

10

G(φ9.0㎜)

8

31

With

STU-HL6321G

638

Single

15

G(φ9.0㎜)

8

30

With

STU-HL6322G

638

Single

15

G(φ9.0㎜)

8

30

With

STU-HL63290HD

638

Multi

2,200

HD(φ9.0㎜)

10

33

Without

STU-HL63520HD

638

Multi

2,400

HD(φ9.0㎜)

10

33

Without

STU-HL6354MG

638

Single

5

MG(φ5.6㎜)

8

25

With

STU-HL6355MG

638

Single

5

MG(φ5.6㎜)

8

25

With

STU-HL63603TG

638

Single

120

TG(φ3.8㎜)

8.5

18

Without

STU-HL6323MG

639

Single

30

MG(φ5.6㎜)

8.5

30

With

STU-HL63391DG

639

Single

200

DG(φ5.6㎜)

8.5

14

With

STU-HL63392DG

639

Single

200

DG(φ5.6㎜)

8.5

14

With

STU-HL6358MG

639

Single

10

MG(φ5.6㎜)

8

21

With

STU-HL63591MG

639

Single

5

MG(φ5.6㎜)

8

21

With

STU-HL63592MG

639

Single

5

MG(φ5.6㎜)

8

21

With

STU-HL6359MG

639

Single

10

MG(φ5.6㎜)

8

21

With

STU-HL6360MG

639

Single

20

MG(φ5.6㎜)

9

21

With

STU-HL6361MG

639

Single

20

MG(φ5.6㎜)

9

21

With

STU-HL6395MG

639

Single

10

MG(φ5.6㎜)

9

21

With

STU-HL6396MG

639

Single

10

MG(φ5.6㎜)

9

21

With

STU-HL6397MG

639

Single

20

MG(φ5.6㎜)

9

21

With

STU-HL6398MG

639

Single

20

MG(φ5.6㎜)

9

21

With

STU-HL6362MG

640

Single

40

MG(φ5.6㎜)

10

21

With

STU-HL6363MG

640

Single

40

MG(φ5.6㎜)

10

21

With

STU-HL6364DG

642

Single

60

DG(φ5.6㎜)

10

21

With

STU-HL6365DG

642

Single

60

DG(φ5.6㎜)

10

21

With

STU-HL6366DG

642

Single

80

DG(φ5.6㎜)

10

21

With

STU-HL6367DG

642

Single

80

DG(φ5.6㎜)

10

21

With

STU-HL6385DG

642

Single

150

DG(φ5.6㎜)

9

17

Without

STU-HL65014DG

648.5

Single

150

DG(φ5.6㎜)

9

17

Without

STU-HL6501MG

658

Single

30

MG(φ5.6㎜)

8.5

22

With

STU-HL65213HD

659

Multi

1,200

HD(φ9.0㎜)

10

33

Without

STU-HL65051DG

660

Single

120

DG(φ5.6㎜)

10

17

With

STU-HL65055DG

660

Single

120

DG(φ5.6㎜)

10

17

With

STU-HL65221DG

660

Single

200

DG(φ5.6㎜)

8

15

With

STU-HL65222DG

660

Single

200

DG(φ5.6㎜)

8

15

With

STU-HL65223DG

660

Single

200

DG(φ5.6㎜)

8

15

Without

STU-HL65231DG

660

Single

150

DG(φ5.6㎜)

7.5

15

With

STU-HL65232DG

660

Single

150

DG(φ5.6㎜)

7.5

15

With

STU-HL65233DG

660

Single

150

DG(φ5.6㎜)

7.5

15

Without

STU-HL6544FM

660

Single

50

MG(φ5.6㎜)

10

17

Without

STU-HL6545MG

660

Single

120

MG(φ5.6㎜)

10

17

Without

STU-HL6714G

670

Single

10

G(φ9.0㎜)

8

22

With

STU-HL67191MG

670

Single

15

MG(φ5.6㎜)

7.5

24

With

STU-HL67192MG

670

Single

15

MG(φ5.6㎜)

7.5

24

With

STU-HL6748MG

670

Single

10

MG(φ5.6㎜)

8

25

With

STU-HL6756MG

670

Single

15

MG(φ5.6㎜)

8

24

With

STU-HL6750MG

685

Single

50

MG(φ5.6㎜)

9

21

With

STU-HL6738MG

690

Single

30

MG(φ5.6㎜)

8.5

19

With

STU-HL7001MG

705

Single

40

MG(φ5.6㎜)

9

18

With

STU-HL7002MG

705

Single

40

MG(φ5.6㎜)

9

18

With

STU-HL7301MG

730

Single

40

MG(φ5.6㎜)

9

18

With

STU-HL7302MG

730

Single

40

MG(φ5.6㎜)

9

18

With

STU-HL83013MG

830

Single

50

MG(φ5.6㎜)

9

22

Without

STU-HL8337MG

830

Single

50

MG(φ5.6㎜)

9

22

With

STU-HL8338MG

830

Single

50

MG(φ5.6㎜)

9

22

With

STU-HL8340MG

852

Single

50

MG(φ5.6㎜)

9

22

With

STU-HL8341MG

852

Single

50

MG(φ5.6㎜)

9

22

With

STC Series Laser Diodes

diode laserWe provide laser diodes with free space and fiber coupling option from 405-1550 nm wavelength range. The free space laser diode can be divided in to single mode and multimode. The fiber coupled laser diode can be divided into SM, PM, MM pigtailed and high power laser diode module. The small emitting aperture, combined with low beam divergence, make these devices the highest-brightness family of CW laser diodes available in the industry.

Wavelength (nm)

Tolerance (nm)

Power (mW)

Laser Type

405 nm

5

20

Single Mode

405 nm

5

150

Single Mode

450 nm

5

1400

Multimode

488 nm

5

60

Single Mode

637 nm

5

120-170

Single Mode

640 nm

5

150

Single Mode

658 nm

8

200

Single Mode

730 nm

10

50

Single Mode

785 nm

5

150

Single Mode

808 nm

3/5/10

200-10000

Multimode

830 nm

5

1000

Multimode

850 nm

5

50

Single Mode

940 nm

5

1500

Multimode

980 nm

5/10

50-3000

Multimode

1064 nm

5

300

Single mode

1310 nm

5

20

Single mode

1550 nm

5

20

Single mode

Detailed Specifications of  Free-space Laser Diodes

Part Number

STC-SLD-405-20

STC-SLD-405-150

STC-SLD-785-150

Power (mW)

20

150

150

Package

TO-18

TO-38

TO-5

Peak Wavelength (nm)

405±5

405±5

785±5

Threshold Current (Typ.)

32mA

40mA

35mA

Operating Current (Typ.)

43mA

140mA

170mA

LD Reverse Voltage

2V

2V

2.0V

Operating Voltage

5.2V

5.2V

1.9V

Slope Efficiency

1.8W/A

1.5W/A

1.1W/A

Horizontal Beam Divergence

9deg

8.5deg

8deg

Vertical Beam Divergence

20deg

19deg

25deg

Polarization

TE

TE

TE

Operating Temperature

+10-+40°C

0-+90°C

-20-+50°C

Storage Temperature

-20-+60°C

-40-+90°C

-40-+80°C

 

Part Number

STC-MLD-808-200

STC-MLD-808-300

STC-MLD-808-500

STC-MLD-808-500

STC-MLD-808-1000

Power (mW)

200

300

500

500

1000

Package

TO-18

TO-18

TO-3/C-Mount

TO-5

TO-3/C-Mount

Peak Wavelength (nm)

808±3

808±3

808±5

808±3

808±5

Threshold Current (Typ.)

40mA

60mA

130mA

120mA

240mA

Operating Current (Typ.)

250mA

350mA

600mA

650mA

1240mA

LD Reverse Voltage

3.0V

3.0V

2.0V

2.0V

2.0V

Operating Voltage

2.2V

2.2V

2.0V

2.0V

2.0V

Slope Efficiency

1.2W/A

1.2W/A

1.0W/A

1.0W/A

1.0W/A

Horizontal Beam Divergence

10deg

10deg

10deg

12deg

10deg

Vertical Beam Divergence

40deg

40deg

38deg

40deg

38deg

Polarization

TE

TE

TE

TE

TE

Operating Temperature

+10-+30℃

+10-+30℃

0-+35°C

-10-+30°C

0-+35°C

Storage Temperature

-40-+80℃

-40-+80℃

-10-+60°C

-10-+85°C

-10-+60°C

 

Part Number

STC-MLD-808-2000

STC-MLD-808-3000

STC-MLD-808-3000

STC-MLD-808-5000

STC-MLD-808-10000

Power (mW)

2000

3000

3000

5000

10000

Package

C-Mount

C-Mount

TO-3

TO-3/C-Mount

CN-Mount

Peak Wavelength (nm)

808±3

808±3

808±10

808±3

808±3

Threshold Current (Typ.)

700mA

800mA

1000mA

1000mA

1900mA

Operating Current (Typ.)

2600mA

3500mA

3500mA

6000mA

10500mA

LD Reverse Voltage

2.0V

2.0V

2.0V

2.0V

2.0V

Operating Voltage

2.0V

2.0V

2.2V

2.0V

2.0V

Slope Efficiency

1.1W/A

1.1W/A

1.0W/A

1.05W/A

1.15W/A

Horizontal Beam Divergence

8deg

8deg

12deg

8deg

10deg

Vertical Beam Divergence

35deg

35deg

40deg

35deg

38deg

Polarization

TE

TE

TE

TE

TE

Operating Temperature

0-+55°C

0-+55°C

+10-+50℃

+15-+30℃

+15-+35°C

Storage Temperature

+15-+30°C

+15-+35°C

-40-+85℃

0-+55℃

-20-+80°C

 

Part Number

STC-MLD-980-50

STC-MLD-980-500

STC-MLD-980-3000

Power (mW)

50

500

3000

Package

TO-18

TO-5

C-Mount

Peak Wavelength (nm)

980±10

980±10

980±5

Threshold Current (Typ.)

25mA

150mA

700mA

Operating Current (Typ.)

120mA

850mA

3300mA

LD Reverse Voltage

2.0V

2.0V

2.0V

Operating Voltage

2.0V

2.0V

2.0V

Slope Efficiency

0.45W/A

0.9W/A

1W/A

Horizontal Beam Divergence

25deg

10deg

8deg

Vertical Beam Divergence

35deg

48deg

35deg

Polarization

TE

TE

TE

Operating Temperature

+10-+40℃

+10-+40℃

+15-+30℃

Storage Temperature

-40-+85℃

-40-+85℃

0-+55℃

STO Series High Power Laser Diode Arrays/Bars/Stacks

diode pump gain module

1. Laser Diode Bars

Model

STO-CS20

STO-CS40

STO-CS60

STO-CS100Q

STO-CS200Q

STO-CS300Q

Output Power

20W

40W

60W

100W

200W

300W

Wavelength

808 / 880 / 915 / 976 / 980 nm

808 / 880 / 915 / 976 / 980 nm

808 / 880 / 915 / 976 / 980 nm

808 / 880 / 915 / 976 / 980 nm

808 / 880 / 915 / 976 / 980 nm

808 / 880 / 915 / 976 / 980 nm

Operation Mode

CW

CW

CW

QCW

QCW

QCW

Duty Circle

CW

CW

CW

≤5%

≤5%

≤5%

Pulse Width

CW

CW

CW

≤300μs

≤300μs

≤300μs

Typical Current

25A

40A

60A

100A

180A

260A

2. Laser Diode Horizontal Stacks

STO-HSCW Series, CW Laser Diode Horizontal Stacks

Model

STO-HSCW-20-3

STO-HSCW-20-4

STO-HSCW-40-3

STO-HSCW-40-4

Output Power

60W

80W

120W

160W

Typical Current

25A

25A

38A

38A

Operation Voltage

<6V

<8V

<6V

<8V

Note: STO-HSCW-20/40-N can be customized with N≤20. The total output power is 20/40 times N.

STO-HSQCW Series QCW Laser Diode Horizontal Stacks

Model

STO-HSQCW-100~300-N

Output Power

QCW 100W~300W*N

Repetition Rate

0-1000Hz

Pulse Width

50-300μs

Duty Circle

≤10% or ≤20%

Note: STO-HSQCW-100~300-N can be customized. Single unit can be mounted with 1, 2 or 3 pcs of laser diode bar. Typical wavelength of the diode bar is 805+/-3nm. However, the wavelength must be specified according to the special pulse width, repetition rate and heat sink designs.

3. STO-VS Series CW/QCW Laser Diode Vertical Stacks

 

STO-VSQCW-MI/MA-100~300-N

STO-VSCW-MI/MA-40~100-N

Single Bar Power

100W,150W,200W,300W QCW

40W,60W,100W CW

Bar Total / Stack

N=1~20

N=1~20

Bar Pitch

0.5mm~2mm

1.8mm

Wavelength

808nm

808nm

Note: STO-VSQCW/CW-MI/MA-100~300-N can be customized. We provide micro channel water cooling technology and high reliability macro channel water cooling technology. Typical wavelength of the diode bar is 808+/-3nm. However, the wavelength must be specified according to the special pulse width, repetition rate and heat sink designs.

3.4 Reliable QCW Diode Laser Stacks in Arc Heatsink

We make the QCW laser into an arc, which is beneficial to the lightweight design of the pump structure. Au-Sn packaging technology makes the laser have high reliability even in harsh working environment.diode stack

Feature

Benefits

Application

Model

STO-ARCQCW-MA-100~500-N

Optical parameters

Output power (W)

QCW 100~500*N

Center wavelength at 25 °C (nm)

808

Number of bars in one stack

1~20

Bar pitch (mm)

0.8~3

Center wavelength variation at 25 °C (nm)

±3/±10

Typical spectral bandwidth (FWHM)

<3

Divergence (degree) (FWHM)

<39⊥<10‖

Polarization

TE

Wavelength shift (nm/℃)

~0.28

Electrical parameters

Working mode

QCW

Maximum duty cycle (%)

£2%

Pulse length (us)

50~1000

Frequency (Hz)

1~1000

Operation current (A)

<=100~500

Operating voltage (V)

<=2*N

Typical slope (W/A)

>1.1

Electro-optic conversion efficiency (%)

>50

Thermal parameters

Operation temperature (℃)

-40~60

Storage temperature (℃)

-50~85

Storage humidity (%)

<70

Cooling

TEC/air cooling

Note:

5. Reliable QCW Diode Laser Stacks in Annular Heatsink

The QCW laser is made into a ring, which improves the uniformity of the pump while making use of the lightweight design of the pump structure. Au-Sn packaging technology makes the laser have high reliability even in harsh working environment.diode stack

Feature

Benefits

Application

Model

STO-ARCQCW-MA-100~500-N

Optical parameters

Output power(W)

QCW 100~500*N

Center wavelength at 25 °C(nm)

808

Number of bars in one stack

1~40

Bar pitch(mm)

0.8~3

Center wavelength variation at 25 °C(nm)

±3/±10

Typical spectral bandwidth (FWHM)

<3

Divergence(degree)(FWHM)

<39⊥<10‖

Polarization

TE

Wavelength shift(nm/℃)

~0.28

Electrical parameters

Working mode

QCW

Maximum duty cycle(%)

£2%

Pulse length(us)

50~1000

Frequency(Hz)

1~1000

Operation current(A)

<=100~500

Operating voltage(V)

<=2*N

Typical slope(W/A)

>1.1

Electro-optic conversion efficiency(%)

>50

Thermal parameters

Operation temperature(℃)

-40~60

Storage temperature(℃)

-50~85

Storage humidity(%)

<70

Cooling

passively cooled/actively cooled

Flow rate per bar(L/min)

0.3-0.8

Note:

6. Vertical QCW Diode Laser Stacks

We use Gold and Tin to assemble our vertical QCW stacks. This technology makes the laser have high reliability even in harsh working environment.diode stack

Feature

Benefits

Application

Model

STO-VSQCW-MI-MA-100~500-N

STO-VSQCW-MI-MA-100~500-N-FAC

Optical parameters

Output power(W)

QCW 100~500*N

 

Output power after collimation(W)

 

90~450*N

Center wavelength at 25 °C(nm)

808

808

Number of bars in one stack

1~20

1~20

Bar pitch(mm)

0.8~3

0.8~3

Center wavelength variation at 25 °C(nm)

±3/±10

±3/±10

Typical spectral bandwidth (FWHM)

<3

<3

Typical fast axis divergence 95 %(°)

66

 

Typical slow axis divergence 95 %(°)

10

10

Fast axis divergence (full power)(°)

 

<0.5

Polarization

TE

TE

Wavelength shift(nm/℃)

~0.28

~0.28

Electrical parameters

Working mode

QCW

QCW

Maximum duty cycle(%)

£20%

£20%

Pulse length(us)

50~1000

50~1000

Frequency(Hz)

1~1000

1~1000

Operation current(A)

<=100~500

<=100~500

Operating voltage(V)

<=2*N

<=2*N

Typical slope(W/A)

>1.1

>1.1

Electro-optic conversion efficiency(%)

>50

>50

Thermal parameters

Operation temperature(℃)

-40~60

-40~60

Storage temperature(℃)

-50~85

-50~85

Storage humidity(%)

<70

<70

Cooling

passively cooled/actively cooled

passively cooled/actively cooled

Flow rate per bar(L/min)

0.3-0.8

0.3-0.8

Note:

7. Vertical CW Diode Laser Stacksdiode stack

Our vertical stacks can be used to increase the optical output power of your diode lasers To do so, we stack up to 12 mounted laser bars to form a diode laser stack or an assembly. Each of these laser bars individually supplies up to 100W in CW mode. Because of the small gaps between the laser bars, you obtain maximum brightness from the stacks, enabling you to work highly effectively. You can choose between laser diode stacks with a fast-axis (FA) or without collimation.

Feature

Application

Model

STO-VSCW-MI-40~100-N

STO-VSCW-MI-40~100-N-FAC

Optical parameters

Output power(W)

CW 40~100*N

 

Output power after collimation(W)

 

36~90*N

Center wavelength at 25 °C(nm)

808

808

Number of bars in one stack

1~12

1~12

Bar pitch(mm)

1.8/0.8~3

1.8/0.8~3

Center wavelength variation at 25 °C (nm)

±3/±10

±3/±10

Typical spectral bandwidth (FWHM)

<3

<3

Typical fast axis divergence 95 %(°)

66

 

Typical slow axis divergence 95 %(°)

10

10

Fast axis divergence (full power)(°)

 

<0.5

Polarization

TE

TE

Wavelength shift(nm/℃)

~0.28

~0.28

Electrical parameters

Operation current(A)

<=40~100

<=40~100

Operating voltage(V)

<=2*N

<=2*N

Typical slope(W/A)

>1.1

>1.1

Electro-optic conversion efficiency(%)

>50

>50

Thermal parameters

Operation temperature(℃)

20~30

20~30

Storage temperature(℃)

0~55

0~55

Storage humidity(%)

<70

<70

Cooling

deionized water

deionized water

Flow rate per bar(L/min)

0.3-0.8

0.3-0.8

Note:

8. Laser Diode Stacks for Hair Removal

We supply various diode stacks for laser hair removal. These stacks can custom-designed and –made according to your specific requirements.

laser hair removal

Model No.

STO-VS-Ml-100-N

Application

Laser hair removal handpiece

Operation mode

CW

Bar numbers in one stack

N=1-20 bars

Power per sub-mounts

100W

Central wavelength at 25℃

810nm/755nm/1064nm

Typical Operation current

90A

Maximum Operation current

100A

► Diode Laser Module,  Laser Diodes (STFB Series), Fiber-coupled DiodesPulse/QCW Diode DriverCW Diode Driver,  Mini OEM Diode Drivers, DFB Laser Diode

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