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OKI SEMICONDUCTOR
OL3492N/LR
1310nm MQW Laser Diode Uncooled Coax Module with Single Mode Fiber
DESCRIPTION
The OKI OL3492N/LR is a 1310nm MQW Laser Diode in a PCB mountable coaxial package with single
mode fiber and low relative intensity noise (RIN).
FEATURES
OUTLINE DIMENSIONS
CIRCUIT
SMF output: 3mW
Low RIN
Wide operating range
MQW structure
Pin No.
Function
1
LD cathode
2
LD anode (case)
3
PD anode
4
PD cathode
13.0
6.4
1.0
2.0
2
3
4
1
4.0
7.0
12.7
17.0
2.2 (2x)
6.8
4.0
23.6
0.45 (4x)
Dimensions in mm.
LD
PD
2
4
3
1
(Case)
s
OL3492N/LR
s
2
OKI SEMICONDUCTOR
ELECTRICAL CHARACTERISTICS
1.
Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. Functional operation should be restricted to the conditions
as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability.
1.
Spectral Width: RMS x 1, CW.
2.
Reflection = -35 dB, Rx noise = 10 pA/Hz
1/2
, Fiber = 1 m, Pf = 1 mW Ave.
Absolute Maximum Ratings
[1]
Parameter
Symbol
Rating
Unit
Fiber output power
P
f
3
mW
Laser diode forward current
I
f
(LD)
150
mA
Laser diode reverse voltage
V
r
(LD)
2
V
Photo diode reverse voltage
V
r
(PD)
20
V
Operating temperature
T
opr
-40 to +85
C
Storage temperature
T
stg
-40 to +85
C
Soldering (max. 10 sec)
T
sld
260
C
Recommended Operating Conditions (T
A
= 25
C)
Parameter
Symbol
Condition
Rated Value
Unit
Min
Typ
Max
Threshold current
I
th
10
20
mA
Fiber output power
P
f
I
f
= I
th
+ 40 mA
2
mW
Forward voltage
V
f
I
f
= 30 mA
1.5
V
Center wavelength
c
P
f
= 2 mW
1290
1310
1330
nm
Spectral width
[1]
P
f
= 2 mW
2.5
nm
Monitor current
I
m
P
f
ave. = 1 mW
200
A
Photo diode dark current
I
dark
V
r
(PD)
0.5
20
nA
Rise time
r
I
bias
= I
th
P
f
ave. = 1 mW, 10-90%
0.5
ns
Fall time
f
0.5
ns
Carrier to noise ratio
[2]
CNR
OMI = 40% @25 MHz
53
dB
Relative intensity noise
RIN
f = 25 MHz BW = 4 MHz
-135
dB/Hz
FIber Pigtail Specifications
Parameter
Rated Value
Unit
Type
SM
Mode Field Diameter
10
1
m
Cladding Diameter
125
2
m
Jacket Diameter
900
m
Length
1 (Min.)
m
Connector
FC/SPC
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