76
GH6M035A5B
Hologram Lasers
Notice
In the absence of confirmation by device specification sheets,SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs,data books,etc.Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Internet
Internet address for Electronic Components Group http://www.sharp.co.jp/ecg/
s
Absolute Maximum Ratings
(T
C
=25C)
Parameter
Symbol
Rating
Unit
1
Optical power output
P
H
31.5
mW
Reverse voltage
Laser
V
R
2
V
2
Operating temperature
T
opr
-10 to +60
C
2
Storage temperature
T
stg
-40 to +85
C
3
Soldering temperature
T
sold
260
C
1
Output power from hologram laser
2
Case temperature
3
At the position of 1.6mm or more from the lead base (Within 5s)
Monitor photodiode
15
V
8.2
+
+
0
0.05
3
+
0
0.1
0.8
0.2
5=4
0.2
2.4
0.15
(1.5)
0.4
0.1
45
1
45
1
3
0 0.1
Hologram device
Emission point
1.39
0.1 from reference plane
Reference plane
Z
X
Y
Z
X
Y
Y
Z
X
8.2
+
0
0.05
6.1 to 6.3
6.6
0.2
3.2
0.15
4.77
0.15
3.8
0.5
2.0
0.15
(0.8
0.2
)
3.3
0.2
1.2
0.2
12-0.4
0.1
2
0.2
(0.5
0.2
)
7.5
MAX.
GH6M035A5B
s
Outline Dimensions
3mm Thickness Resin Stem Hologram
Laser for Recording MD Player
Terminal connection
Pin configuration
(Unit : mm)
s
Features
(1) Super-thin package (3mm thickness) due to insert frame
structure
(2) Low current drive type
Iop : TYP. 50mA
s
Applications
(1) Recording MD players
LD
NC
D3
D2
NC
NC
GND
K
NC
D4
D1
NC
D3
D2
D4
D1
q
w
e
r
t
y
!2
!1
!0
o
i
u
qwerty
!2!1!0oiu
Y
X
Z
77
GH6M035A5B
Hologram Lasers
s
Electro-optical Characteristics
(T
C
=25C)
Parameter
Symbol
MAX.
Unit
Focal offset
DEF
+0.5
m
5
Track interference
-
(18)
%
Differential efficiency
d
1.1
mW/mA
Conditions
MIN.
TYP.
Collimated lens output power
P
CL
=1.1mW
-0.5
-
-
-
18mw
I(27mW)-I(9mW)
0.54
0.77
1
Focal error symmetry
B
FES
-15
-
+15
%
2
Radial offset
-
0.53
-
1.48
-
4
Main spot balance
MSB
0.95
1.05
1.15
-
3
FES output amplitude
V
FES
2.0
4.6
6.1
A
6
Stray light
-
P
H
=4mW
-
-
0.1
A
Threshold current
I
th
-
1
15
50
mA
Operating current
I
op
P
H
=27mW
5
50
70
mA
Operating voltage
V
op
-
1.9
2.2
V
Wavelength
p
770
785
800
nm
1
(ab) / (a+b)
2
D1 / D4 (focal servo ON)
3
D2D3 (Focal vibration)
4
(D1+D4) / (D2+D3)
5
FES output amplitude (focal servo ON)/FES output amplitude
(typ.) (focal vibration)
6
Output of D2, D3 when hologram output is 4mW and outside
light is cut off.
a (+amplitude of FES)
b (amplitude of FES)
NA=0.47
f =2.56mm
NA=0.18
f =8.18mm
Disc
(SONY : YEDS-18)
Actuator
Collimated lens
Hologram laser
Laser driver
ACC drive
Measuring System of Hologram Laser
78
GH6M035A5B
Hologram Lasers
s
Electro-optical Characteristics of Laser Diode (Without Hologram Device) (Design Standard)
(T
C
=25C)
Parameter
Symbol
MAX.
Unit
Misalignment angle
Parallel
//
+2
+3
Emission characteristics, Beam shift
+0.7
Chip thickness
-
55
m
Conditions
MIN.
TYP.
-2
-
Perpendicular
-3
-
-0.7
-
Active layer to chip edge
-
-
X, Y, Z
-80
-
+80
m
Po=33mW
//
at Po=33/3mW
s
Electro-optical Characteristics of Photodiode for Signal Detection (Design Standard)
(T
C
=25C)
Parameter
Symbol
Unit
Reverse voltage
V
R
V
Response time
tr, tf
ns
Conditions
MIN.
TYP.
12.5
-
-
10
I
R
=10
A
MAX.
50
Terminal capacitance
C
t
V
R
=12.5V, f=1MHz
1.2
-
5
pF
1.4
-
5.8
Sensitivity
0.4
0.5
0.65
A/W
V
R
=15V, R
L
=180
120
-
10
200
D1, D4
S
s
Electro-optical Characteristics of Hologram Laser (Design Standard)
(T
C
=25C)
Parameter
MAX.
Unit
4
Focal error noise
+7
%
Space between main and sub beam
-
m
Conditions
MIN.
TYP.
-7
-
Disc surface
-
19.7
1
RF output amplitude
6
10.5
-
A
2
RES output amplitude
1
2
3.5
A
3
Focal error signal capture range
-
19
-
m
1
Amplitude of D1+D2+D3+D4 (focal servo ON, radial servo ON)
2
Amplitude of D1D4 (focal servo ON)
a
ba
b
P
CL
=1.1mW
s
Optical Characteristics of Hologram Device (Design Standard)
(T
C
=25C)
Parameter
MAX.
Unit
Grating diffraction intensity ratio (+1 : -1)
1.1
-
Grating rotation angle
-
Conditions
MIN.
TYP.
0.9
1
to hologram parting line
-
1.16
Transmissive wave aberration
-
-
t.b.d
-
Surface parallelism
-
-
1.3
min.
Grating diffraction intensity ratio (0 : 1)
9 : 1
10.5 : 1
12 : 1
-
Hologram diffraction efficiency (0 : 1)
-
80 : 8
-
%
t.b.d
-
p
=780nm
Half intensity angle
Parallel
//
8.5
-
13
Perpendicular
14
-
26
Misalignment position
-
Kink
LKink
-15
-
+15
%
Polarization ratio (TE/TM)
Po=3mW
50
-
-
-
Polarization angle (TM deviance)
-7
-
+7
D2, D3
p
=780nm
D2, D3
D1, D4
3
4
115
Application Circuits
NOTICE
qThe circuit application examples in this publication are provided to explain representative applications of
SHARP devices and are not intended to guarantee any circuit design or license any intellectual property
rights. SHARP takes no responsibility for any problems related to any intellectual property right of a
third party resulting from the use of SHARP's devices.
qContact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
SHARP reserves the right to make changes in the specifications, characteristics, data, materials,
structure, and other contents described herein at any time without notice in order to improve design or
reliability. Manufacturing locations are also subject to change without notice.
qObserve the following points when using any devices in this publication. SHARP takes no responsibility
for damage caused by improper use of the devices which does not meet the conditions and absolute
maximum ratings to be used specified in the relevant specification sheet nor meet the following
conditions:
(i) The devices in this publication are designed for use in general electronic equipment designs such as:
--- Personal computers
--- Office automation equipment
--- Telecommunication equipment [terminal]
--- Test and measurement equipment
--- Industrial control
--- Audio visual equipment
--- Consumer electronics
(ii)Measures such as fail-safe function and redundant design should be taken to ensure reliability and
safety when SHARP devices are used for or in connection with equipment that requires higher
reliability such as:
--- Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.)
--- Traffic signals
--- Gas leakage sensor breakers
--- Alarm equipment
--- Various safety devices, etc.
(iii)SHARP devices shall not be used for or in connection with equipment that requires an extremely
high level of reliability and safety such as:
--- Space applications
--- Telecommunication equipment [trunk lines]
--- Nuclear power control equipment
--- Medical and other life support equipment (e.g., scuba).
qContact a SHARP representative in advance when intending to use SHARP devices for any "specific"
applications other than those recommended by SHARP or when it is unclear which category mentioned
above controls the intended use.
qIf the SHARP devices listed in this publication fall within the scope of strategic products described in the
Foreign Exchange and Foreign Trade Control Law of Japan, it is necessary to obtain approval to export
such SHARP devices.
qThis publication is the proprietary product of SHARP and is copyrighted, with all rights reserved. Under
the copyright laws, no part of this publication may be reproduced or transmitted in any form or by any
means, electronic or mechanical, for any purpose, in whole or in part, without the express written
permission of SHARP. Express written permission is also required before any use of this publication
may be made by a third party.
qContact and consult with a SHARP representative if there are any questions about the contents of this
publication.
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