HOLOGRAM LASER
Hologram Laser(3 beam) for MD players
s
Features
(1) Enables to design compact pick-up thanks to
compact package. (Thickness; 4.8mm)
(2) Since its semiconductor laser, signal detection
photocell, and circuit array are assembled in a
package, the optical pick is simple in assembling
and adjustment
(3) The adjustment during pickup assembly is eased
and can easily be automated.
s
LT0H33P
Outline Dimensions
φ
8.2
(Unit: mm)
4.8
0.25
MIN.
0.25
MIN.
φ
6.63
Hologram glass
Cap glass
3.97
3.2
0.25
2.0
4.77
Reference surface
s
Applications
(1) MD players
8.2
10
-
φ
0.4
P1.4
±
0.2 X 3 = 4.2
±
0.2
1
2
3
4
2.8
9
8
7
6
4.9
[Terminal connection]
LT0H33P
10
Laser diode
5
2
G
9: NC
1
D1
3
4
D2
6
4.8
10
5
4.6
1.2
D3
8
0.3
MAX.
1.27
LD chip
D4
7
D5
s
Absolute Maximum Ratings
Parameter
Symbol
Ratings
Units
Optical power output *1
P
O
7.0
mW
Laser
2
Reverse Monitor photodiode
V
R
30
V
voltage
Photodiode for signal detection
15
Operating temperature*2
Topr
-25 to +70
˚C
Storage temperature *2
Tstg
-40 to +85
˚C
Soldering temperature *3
Tsol
260(5s or less)
˚C
*1 Output power from hologram laser
*2 Case temperature
*3 At the position of 1.6mm from the
bottom face of resin package.
(Notice)
• In the absence of 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.
• Specifications are subject to change without notice for improvement.
(Internet)
• Data for Sharp's optoelectronic/power devices is provided for internet. ( Address http://www.sharp.co.jp/ecg/)
TEC940525
LT0H33P
s
Electro-optical Characteristics
Parameter
Threshold current
Operating current
Operating voltage
Wavelength *2
Monitor current
Laser
(without
hologram
glass)
Radiation
Characteristics
Angle
Emission
Point
accuracy
Symbol
Ith
Iop
Vop
λp
Im
Parallel
θ
//
Perpen-
θ
⊥
dicular
∆φ
//
Angle
∆φ
⊥
∆x
Positon
∆y
∆z
η
S
I
d
Ct
V
R
Condition
-
P
o
= 6mW *1
P
o
=6mW *1,V
R
=15V
P
o
= 6mW *1
-
18.3mW
Iop(6mW)-Iop(6mW)
MIN
-
-
-
770
0.15
8.5
29
-
-
-
-
-
0.15
-
-
-
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
15
TYP
45
63
-
780
0.5
11
38
-
-
-
-
-
0.3
0.08
-
20
-
(Tc=25˚C)
MAX
Units
60
mA
85
mA
2.0
V
800
nm
1
mA
13
˚
43
˚
±1
˚
±3
˚
±20
µm
±20
µm
±80
µm
0.6
-
150
-
-
mW/mA
mA/mW
nA
pF
V
Differentioal efficiency
Monitor
Photodiode
Sensitivity
Dark current
Terminal capacitance
Reverse voltage
V
R
=1.5V
I
R
=10µA
Dark current
I
d
V
R
=1.5V
-
1
0.6
120
40
60
-
-
-
-
-
210
80
115
-
-
10
8
6
-
-
-
660
660
nA
Photodiode
for signal
detection
Terminal capacitance
Ct
V
R
=1.5V,f=1MHz
pF
Short circuit current*3 *4
Isc
Ev=1000Lx
nA
Response time *5
t
r
,t
f
V
R
=1.5V, R
L
=180Ω
ns
*1 Output power form LD chip
*2 Oscillation mode, transverse single mode
*6
Applicabledivisions
correspond to pattern segment No.
*3 Values in each element. Elements other than subject elemens shall be
measured while the anode and the cathode are short-sircuited to each other
*4 Short-circuit currents between segments D1 and D5 or D3 and D4 shall be
within ±10% of the average
*5 Measuring method is shown below.
D1
D2
D3
D5
D4
Laser diode
λ=780nm
Input
Input
Output
R
L
=180Ω
V
R
=15V
Output
50%
90%
10%
Segment No.
D1,D5 ••••••• A
D2,D3 ••••••• B
D4 ••••••••••• C
Fig.1
t
r
t
f
LT0H33P
s
Electro-optical Characteristics *1
Parameter
Focus error signal offsetting *2
Focus error noise *3
Radial error balance *4
RF Output amplitude *5
FES Output amplitude *6
RES Output amplitude *6
Condition
MIN
-0.4
-
-20
6.0
3.3
0.6
TYP
-
19
-
10.6
5.5
1.3
MAX
+0.4
-
+20
-
8.1
2.2
D2 + D3 + D4
D2 - D3
D1 - D5
(Tc=25˚C)
Units
µm
µm
%
µA
p-p
µA
p-p
µA
p-p
D1,D2,D3,D4,D5: Refer to pattern segment No. (Fig.1)
*1 Measuring method is shown below.
Actuator
C.L.
Laser
Driver
APC
HL
NA=0.17
f=10.74mm
NA=0.45
f=3.4mm
Disk
TCD-782
(A-BEX)
Measuring method of electro-optical characteristics
*2 Distance between FES=0 and jitter Min. point
*3
a
b
*4
(a - b) / 2
a+b
a
a
b
GND
b
*5 Focus/radial servo is ON-state
*6 FES output amplitude: focus rocking condition
RES output amplitude: under the condition that only focus servo is effected
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