HAMAMATSU L8413 Datasheet

PRELIMINARY DATA

Compact Peltier-cooling type

FEATURES

High optical power : 20 W/bar
High stability
Long life
High cost performance
Compact

APPLICATIONS

Pumping source for solid state lasers
Materials processing
Welding
Soldering
Medical systems

HIGH POWER CW LASER
DIODE with PELTIER-COOLING
L8413

High power laser diodes with a Peltier cooler feature several advantages such as high stability with long life and high
cost performance with compact structure. Sinve they are designed to be small, they are easily applied as light source to
pump solid state lasers, for material processing like welding or soldering, and for medical systems. The lasing areas
consist of small laser emitters arranged in line and are thus called “Bar” structure. By stacking Bars as a module, a high
power CW operation can be achieved. Water-cooling and Funryu-cooling (patent pending : Japan 8-139479, WO
00/11717) are also available. And focusing lens is available as an option.

ABSOLUTE MAXIMUM RATINGS (Each bar)

Parameter

Radiant Output Power / bar

Reverse Voltage

Operating Temperature

Storage Temperature

Symbol

Φ

e

V

r

T

op(c)

T

stg

Value

22

2

+5 to +35

-20 to +40

Unit

W

V

°C
°C

CHARACTERISTICS (Each bar, Top(c) = 20 °C)

Parameter

Radiant Output Power / bar

Peak Emission Wavelength

Spectral Radiation Half Bandwidth

Forward Voltage

Beam Spread Angle : Parallel

: Vertical

Lasing Threshold Current

Array Length

Symbol

Φ

e

λp

∆λ

V

f

θ

//

θ

⊥

I

th

-

Conditions

If = 25 A

Φ

= 15 W

e

Φ

= 15 W

e

Φ

= 15 W

e

FWHM

Value

20

808

4.0

1.8

10

35

10

10

Unit

W

nm

nm

V

° (degree)
° (degree)

A

mm

*Contact sales stuff for emitting wave-length and radiant output power (Φe) other than above.

Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2002 Hamamatsu Photonics K.K.

HIGH POWER CW LASER DIODE with PELTIER-COOLING L8413

Figure 1: Radiant Output Power vs. Forward Current (Typ.)

30

Top(c) = 20 °C

(W)

e

20

10

RADIANT OUTPUT POWER Φ

0

0

10

20

30

FORWARD CURRENT If (A)

Figure 3: Dimensional Outline (Unit : mm)

25.0±0.2

5.0±0.2

18.0±0.2

11.0±0.2

3.5±0.2

Figure 2: Typical Emission Spectrum

100

80

60

40

20

RELATIVE RADIANT OUTPUT POWER (%)

0

802

799

808

805

811

WAVELENGTH (nm)

Top(c) = 20 °C

814

817

25.0±0.2

14.0±0.2

4-φ4.4

4-M2

CATHODE(-)

ANODE(+)

5.85±0.20

10.9±0.5

http://www.hamamatsu.com

HAMAMATSU PHOTONICS K.K., Laser Group, Sales Dept.
5000, Hirakuchi, Hamakita City, Shizuoka, 434-8601, Japan, Telephone: [phone], Fax: [phone], E-mail: [e-mail]

U.S.A.: Hamamatsu Corporation:360 Foothill Road, P.O. BOX 6910, Bridgewater, N.J. 08807-09 10, U.S.A.Telephone: [phone], Fax: [phone] E-mail: [e-mail]
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone], E-mail: [e-mail]
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone], E-mail: [e-mail]
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: [phone], Fax: [phone], E-mail: [e-mail]
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 Solna, Sweden, Telephone: [phone], Fax: [phone], E-mail: [e-mail]
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone], E-mail: [e-mail]

Cat. No. LLD1007E02
APR. 2002
Printed in Japan (200)