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RLD2WMUV2
Laser Diodes
DVD-ROM / player single mode 2wavelength laser diode
RLD2WMUV2
This is monolithic type single mode 2wavelength laser diode. With our original technology, realized low threshold current and excellent temperature characteristic. This laser diode is suitable for DVD-ROM and DVD-player.
Applications DVD-ROM DVD player
External dimensionsUnit : mm
902 0.40.1 1
4.4 max 1.00.1 2.00.2 3.6
Equivalent circuit diagram
2 3
4
Features 1) Optimization of a strained multi quantum well realizes the reduction in threshold current, and the good temperature characteristic. 2) Low threshold current. 785nm : 18mA (Tc=25C) 655nm : 20mA (Tc=25C) 3) Low noise is realized by high frequency modulation (BU9369FVM)element. 4) Emission point distance : 110m
(2)
1.60.1
5.6 +0 -0.025
L.D.
1.20.1 2.30.2
L.D. (3) (4)
P.D.
Laser chip 0.5min. Sub-mount
0.5max.
(1)
M type
3-0.45
Open Package
Absolute maximum ratingsTc=25C 785nm
Parameter Output
Reverse voltage
Symbol PO
Limits 7 2 30 -10 to +70 -40 to +85
Unit mW V V C C
Laser PIN photodiode
VR VR(PIN) Topr Tstg
Operating temperature Storage temperature
655n
Parameter Output
Reverse voltage
Symbol PO
Limits 7 2 30 -10 to +70 -40 to +85
Unit mW V V C C
Laser PIN photodiode
VR VR(PIN) Topr Tstg
Operating temperature Storage temperature
6.50.5
mechanical height 1.180.08
1.2max.
1/2
RLD2WMUV2
Laser Diodes
Electrical and optical characteristicsTc=25C 785n
Parameter Symbol Min. Typ. Max. Unit Conditions
Threshold current
Ith
-
18
50
mA
-
Operating current
Iop
-
30
60
mA
PO=5mW PO=5mW
-
Operating voltage Differential efficiency
Monitor current
Vop
Im
- 0.2
0.1
1.9 0.55
0.25
2.3 0.8
0.5
V mW/mA
mA
PO=5mW PO=5mW PO=5mW PO=5mW PO=5mW
Parallel diveragence angle
//
7
10
15
deg
Perpendicular divergence angle

25
32
39
deg
Parallel deviation angle
//
-2
0
+2
deg
Perpendicular deviation angle Emission point accuracy
Peak emission wavelength Astigmatism

X Y Z
-3 -80
770 -
0 0
785 -
+3 +80
810 10
deg m
nm m
-
PO=5mW PO=5mW
// and are defined as the angle within which the intensity is 50% of the peak value.
655n
Parameter
Threshold curret
Operating current
Operating voltage Differential efficiency
Symbol
Ith
Iop
Vop
Min.
-
-
- 0.4
Typ.
20
28
2.3 0.7
Max.
50
60
2.7 1.0
Unit
mA
mA
V mW/mA
Conditions
-
PO=5mW PO=5mW
-
PO=5mW PO=5mW PO=5mW PO=5mW PO=5mW
PO=5mW PO=5mW
Monitor current
Parallel diveragence angle
Perpendicular divergence angle
Parallel deviation angle
Perpendicular deviation angle
Im
//
0.1
7
20
-2
-3
0.14
8
27
0
0
0.5
10
35
+2
+3
mA
deg
deg
deg
deg

//

Peak emission wavelength Astigmatism
645 -
655 -
662 10
nm m
// and are defined as the angle within which the intensity is 50% of the peak value.
Electrical and optical characteristics curvesTc=25C
IL Vf PO Im (mA) Se
Vf PO Im (mA) IL Se
(V) (mW) 0 3 10
5
1
1.5
(W/A) 2 1
(V) (mW) 0 7 5
6
25
5
75
(W/A) 1 1
OPTICAL INTENSITY : PO (mW)
7 6 5 4 3 2 1 0 0 655mm 785mm
8 75 2 6 5 4 1 25 2
4 5 3 4 3 2 1 1
8
6
2
4
2
0
0 0
20
40
60
80
0 100
0
0 0 0 10 20 30 40 50 60 70 80 90 100 If (mA)
0.1
0.2
0.3
0.4
If (mA)
MONITOR CURRENT : Im (mA)
Fig.1 785nm Optical output vs. operating current
Fig.2 655nm Optical output vs. operating current
Fig.3 Monitor current vs. optical output
2/2
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1

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