NEC NX8562LB-BA, NX8562LB-CA, NX8562LB Datasheet
DATA SHEET
LASER DIODE
NX8562LB
1 550 nm CW LIGHT SOURCE
InGaAsP STRAINED MQW-DFB LASER DIODE MODULE
DESCRIPTION
The NX8562LB is a 1 550 nm laser diode with Polarization Maintain Fiber (PMF).
This device is designed as CW light source and ideal for transmission systems in which external modulators are
used.
FEATURES
• Output power Pf = 20 mW MIN.
• Wavelength selectable for ITU-T standards
• Internal thermo-electric cooler and isolator
• Hermetically sealed 14-pin butterfly package
• Polarization maintain fiber pigtail
1.25
10 MIN.
8.89±0.13
5.6
8.2±0.2
0.75
1.0
15.24
2.54
7
8
20.83±0.13
26.04±0.13
29.97±0.25
0.5
14
4– 2.67
22.3
1
Optical Fiber (PMF)
Length: 1 m MIN.
PACKAGE DIMENSIONS
in millimeters
φ
0.9
6.0
12.7±0.15
5.15
TOP VIEW
#7 #1
+
–
Cooler
LD
#8 #14
PD
L
Thermistor
R
PIN CONNECTIONS
Pin No. Pin No.
1
2
3
4
5
6
7
Function
Thermistor
Thermistor
Bias
PD Anode
PD Cathode
Cooler Anode
Cooler Cathode
8
9
10
11
12
13
14
Function
GND
GND
GND
GND, LD Anode
Signal Input
GND
GND
The information in this document is subject to change without notice.
Document No. P13824EJ2V0DS00 (2nd edition)
Date Published November 1998 NS CP(K)
Printed in Japan
The mark
••••
shows major revised points.
©
1998
µ
900 m Nylon pipe
φ
200
OPTICAL FIBER DIMENSIONS
in millimeters
900 m Nylon pipe
φ
φ
400 m Tight buffer PANDA fiber
µ
1 000 MIN.
NX8562LB
-BA: FC-PC connector
µ
-CA: SC-PC connector
10
Nylon pipe
Cave
125
400
500
900
( m)
µ
Primary coat
φµ
9 m core
2
ORDERING INFORMATION
Part Number Available Connector
NX8562LB Without Connector
NX8562LB-BA With FC-PC Connector
NX8562LB-CA With SC-PC Connector
ABSOLUTE MAXIMUM RATINGS (TC = 25 °°°°C, unless otherwise specified)
Parameter Symbol Ratings Unit
NX8562LB
Forward Current of LD I
Reverse Voltage of LD V
Forward Current of PD I
Reverse Voltage of PD V
Operating Case Temperature T
Storage Temperature T
Lead Soldering Temperature (10 s) T
F
R
F
R
C
stg
sld
300 mA
2.0 V
10 mA
20 V
−
20 to +65
−
40 to +85
260
°
C
°
C
°
C
ELECTRO-OPTICAL CHARACTERISTICS (TLD = 25 °°°°C, TC = −−−−20 to +65 °°°°C)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Laser Set Temperature T
Forward Voltage V
Threshold Current I
Optical Output Power from Fiber P
Threshold Output Power from Fiber P
Quantum Efficiency
Peak Emission Wavel ength
*1
Spectral Line Width
Side Mode Suppression Ratio SMSR Pf = 20 mW, CW 30 35 dB
FM Response
Relative Intensity Noise RIN Pf = 20 mW, 20 MHz to 3 GHz
Flat frequency response f
Polarization Exti nction Ratio
*2
set
F
Pf = 20 mW 0.9 1.5 V
th
f
IF = 167 mA, TLD = T
th
IF = I
th
set
η
λ
p
Pf = 20 mW, CW, TLD = T
∆
ν
f
= 20 mW, CW, 3 dB down 1 2 MHz
P
η
FM
Pf = 20 mW 50 70 MHz/mA
m
Pf = 20 mW, +/−3 dB 1.8 GHz
set
20 35
20 40 mA
20 mW
100
0.13 W/A
1 540 1 561 nm
−
150 dB/ Hz
ext Pf = 20 mW, CW 15 20 dB
°
C
µW
Wavelength selectable for ITU-T standards.
*1
Polarization state of LD is aligned parallel to the slow axis.
*2
3
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