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
• SMF output: 3mW
• Low RIN
• Wide operating range
• MQW structure
OUTLINE DIMENSIONS
1.0
6.4
Pin No.
1
2
17.0
12.7
7.0
2
1
3
4
Function
LD cathode
LD anode (case)
PD anode
PD cathode
3
4
ø6.8
ø2.2 (2x)
ø4.0
2.0
ø0.45 (4x)
13.0
4.0
Dimensions in mm.
23.6
CIRCUIT
LD
2
(Case)
PD
4
3
1
OKI SEMICONDUCTOR
1
s
OL3492N/LR
s
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
[1]
Parameter
Fiber output power
Laser diode forward current
Laser diode reverse voltage
Photo diode reverse voltage
Operating temperature
Storage temperature
Soldering (max. 10 sec)
P
f
I
f
(LD)
V
r
(LD)
V
r
(PD)
T
opr
T
stg
T
sld
Symbol
Rating
3
150
2
20
-40 to +85
-40 to +85
260
Unit
mW
mA
V
V
°
C
°
C
°
C
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.
Recommended Operating Conditions (T
A
= 25
°
C)
Rated Value
Parameter
Threshold current
Fiber output power
Forward voltage
Center wavelength
Spectral
width
[1]
I
th
P
f
V
f
λ
c
σ
I
m
I
dark
τ
r
τ
f
CNR
RIN
Symbol
Condition
–
I
f
= I
th
+ 40 mA
I
f
= 30 mA
P
f
= 2 mW
P
f
= 2 mW
P
f
ave. = 1 mW
V
r
(PD)
I
bias
= I
th
P
f
ave. = 1 mW, 10-90%
OMI = 40% @25 MHz
f = 25 MHz BW = 4 MHz
Min
–
2
–
1290
–
200
–
–
–
53
–
Typ
10
–
–
1310
–
–
0.5
–
–
–
–
Max
20
–
1.5
1330
2.5
–
20
0.5
0.5
–
-135
Unit
mA
mW
V
nm
nm
µ
A
nA
ns
ns
dB
dB/Hz
Monitor current
Photo diode dark current
Rise time
Fall time
Carrier to noise ratio
[2]
Relative intensity noise
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.
FIber Pigtail Specifications
Parameter
Type
Mode Field Diameter
Cladding Diameter
Jacket Diameter
Length
Connector
Rated Value
SM
10
±
1
125
±
2
900
1 (Min.)
FC/SPC
Unit
–
µ
m
µ
m
µ
m
m
–
2
OKI SEMICONDUCTOR
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