PRELIMINARY DATA
CW LASER DIODES
L7910
FEATURES
Radiant flux (CW) : 4 mW
Peak Emission Wavelength : 755 nm ± 5 nm
Emitting Area Size : 5 µm x 1 µm
High Stability
Long life
Compact
APPLICATIONS
Printing
Measuring Instrument
Medical Instrument
Peak Emission Wavelength 755 nm, Radiant Flux 4 mW (CW)
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. ©2007 Hamamatsu Photonics K.K.
ABSOLUTE MAXIMUM RATINGS (Top(c) = 38 °C)
Parameter Symbol
Radiant Flux
Re verse Voltage (LD)
Re verse Voltage (PD)
Operating Temperature
Storage Temperature
Value Unit
CHARACTERISTICS (Top(c) = 38 °C)
Φe
Vrl
Vrd
Top(c)
Tstg
6
2
20
−10 to +70
−20 to +80
mW
V
V
°C
°C
Φe = 4 mW
−
Φe = 4 mW
Parameter
Operating Current
Peak Emission Wavelength
Forward Voltage
Lasing Threshold Current
Monitor PD Current
PD Cutoff Frequency
Beam Spread Angle
Symbol Conditions Unit
Value
FWHM
mA
nm
V
degree
degree
mA
mA
MHz
Min.
30
750
1.6
5
31
15
0.5
30
Iop
λp
Vf
θ//
θ⊥
Ith
Im
fc
Horizontal
Vertical
Typ.
57
755
1.9
7
36
35
1.5
50
Max.
76
760
2.2
10
41
50
3.5
-
Φe = 4 mW ,Vrd = 15 V
Vrd = 15 V (-3dB)
CW LASER DIODES L7910
Figure 1:
Radiant Flux vs. Operating Current
(Typ.)
Figure 2:
Radiant Flux vs. Monitor Current
(Typ.)
Figure 3-1: Directivity
Cat. No. LLD1033E02
DEC. 2007
http://jp.hamamatsu.com
HAMAMATSU PHOTONICS K.K., Laser Group, Sales Dept.
1-8-3, Shinmiyakoda, Kita-ku, Hamamatsu City, Shizuoka, 431-2103, Japan, Telephone: (81)53-484-1301, Fax: (81)53-484-1302, E-mail: laser-g@lsr.hpk.co.jp
U.S.A.: Hamamatsu Corporation:360 Foothill Road, P.O. BOX 6910, Bridgewater, N.J. 08807-0910, U.S.A.Telephone: (1)908-231-0960, Fax: (1)908-231-1218 E-mail: usa@hamamatsu.com
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658, E-mail: info@hamamatsu.de
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33(1) 69 53 71 00, Fax: 33(1) 69 53 71 10, E-mail: infos@hamamatsu.fr
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44)1707-294888, Fax: (44)1707-325777, E-mail: info@hamamatsu.co.uk
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 Solna, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01, E-mail: info@hamamatsu.se
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741, E-mail: info@hamamatsu.it
8
5
2
00
Operating Current Iop (mA)
Radiant Flux Φe (W)
( Top(c) = 38 °C )
1
3
4
6
7
10 20 40
30 50 60 70 80
3.0
0.0 0
Radiant Flux Φe (mW)
Monitor Current Im (mA)
( Top(c) = 38 °C )
0.5
1.0
1.5
2.0
2.5
124
3567
(Parallel Direction)
80
60
100
40
20
0-30-40 -20 -10 0 10 20 30 40
Relative Radiant Flux (%)
Angle (degree)
Top View
(Φe=4 mW, Top(c) = 38 °C)
Parallel
Direction 80
60
100
40
20
0-30-40 -20 -10 0 10 20 30 40
Relative Radiant Flux (%)
Angle (degree)
Top View
(Φe=4 mW, Top(c) = 38 °C)
Vertical Direction
(*Example from Measurement) Figure 3-2: Directivity (Vertical Direction)
(*Example from Measurement)
Figure 4: Dimensional Outline (Unit: mm)
φ9.0
Side View
Bottom View
φ5.7 ± 0.2
φ
2.54
1.0
PD LD
φ
0.45
φ2.8 ± 0.3
7.0 ± 0.5 5.1 ± 0.5
2.41.5
0.4
Glass Window
LD Chip
Common to Case
(Pin Connection)
LD Cathode
PD Anode PD Anode
LD Cathode
Common to Case
+0
-0.1
