NEC NDL7620P, NDL7620P1D, NDL7620PC, NDL7620PD, NDL7620P2D Datasheet
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DATA SHEET
LASER DIODE
NDL7620P Series
1 310 nm OPTICAL FIBER COMMUNICATIONS
InGaAsP STRAINED MQW-DFB LASER DIODE
COAXIAL MODULE FOR 2.5 Gb/s
DESCRIPTION
The NDL7620P Series is a 1 310 nm λ/4-phase-shifted DFB (Distributed Feed-Back) laser diode coaxial module
with internal optical isolator. Newly developed strained Multiple Quantum Well (st-MQW) structure is adopted to
achieve stable dynamic single longitudinal mode operation over wide temperature range of 0 to +70 °C. It is
designed for STM-16 applications.
FEATURES
•High-speed response tr = 40 ps, tf = 100 ps
•Peak emission wavelength
•Wide operating temperature range TC = 0 to +70 °C
•Internal optical isolator
•λ/4-phase-shifted DFB
•InGaAs monitor PIN-PD
p
= 1 310 nm
λ
NDL7620P
Optical Fiber
SM-9/125
Length: 1 m
φ
7±0.2
4.1±0.8
6±0.1
φ
PIN CONNECTIONS
φ
P.C.D. = 2
43
1
2
3.2±0.25
φ
7±0.2
φ
15
29.0±1.0
8.0
5.3±0.8
20±1.0
4
1
Case
PACKAGE DIMENSIONS
in millimeters
NDL7620P1
φ
0.45
±0.05
3
2
Optical Fiber
SM-9/125
Length: 1 m
φ
7±0.2
Optical Fiber
3
2
SM-9/125
Length: 1 m
φ
0.45
±0.05
P.C.D. = 2
φ
7±0.2
φ
φ
2– 2.2
6±1.0
φ
12.7±0.2
17.0±0.2
PIN CONNECTIONS
φ
43
2
1
3.2±0.25
15
8.0
1.0±0.1
4.0±0.2
20±1.0 29.0±1.0
2.0±0.2
3.7±0.3
0.9
φ
4
1
7.2±0.3
Case
PD
LD
φ
0.9
PD
LD
0.5±0.2
φ
16
NDL7620P2
15
8.0
2.5±1.0
–
φ
2
2.5
φ
29.3±1.0
19.5±1.0
φ
7±0.2
3.2±0.25
φ
0.3
PIN CONNECTIONS
P.C.D. = 2
2
1
3
4
12±0.15
16.0
0.9
3
0.3
PD
2
LD
4
φ
4– 0.45
±0.05
1
Case
The information in this document is subject to change without notice.
Document No. P11351EJ4V0DS00 (4th edition)
Date Published February 1998 NS CP(K)
Printed in Japan
The mark
••••
shows major revised points.
1996©
ORDERING INFORMATION
Part Number Available Connector Flange Type
NDL7620P Without Connector No Flange
NDL7620PC With FC-PC Connector
NDL7620PD With SC-PC Connector
NDL7620P1 Without Connector Flat Mount Flange
NDL7620P1C With FC-PC Connector
NDL7620P1D With SC-PC Connector
NDL7620P2 Without Connector Vertical Flange
NDL7620P2C With FC-PC Connector
NDL7620P2D With SC-PC Connector
ABSOLUTE MAXIMUM RATINGS (TC = 0 to +70 °°°°C, unless otherwise specified)
Parameter Symbol Ratings Unit
NDL7620P Series
Forward Current of LD I
Optical Output Power from Fiber P
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)
F
f
R
F
R
C
stg
sld
T
150 mA
5.0 mW
2.0 V
10 mA
20 V
0 to +70
−
40 to +85
260
°
C
°
C
°
C
2
NDL7620P Series
η
g
ELECTRO-OPTICAL CHARACTERISTICS (TC = 0 to +70 °°°°C, unless otherwise specified)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Forward Voltage V
Optical Output Power from Fiber P
Threshold Current I
Differential Effi c i ency from Fiber
Temperature Dependence of
Differential Effi c i ency from Fiber
Peak Emission Wavel ength
F
Pf = 2 mW, TC = 25 °C0.91.4V
f
IF = Ith + 40 mA 2.0 mW
th
η
d
Pf = 2 mW 0.05 W/A
η
d
∆η
d
∆
d
= 10 lo
λ
p
Pf = 1 mW, Ib = Ith, 1 290 1 310 1 330 nm
(TC = 70 °C)
η
d
(TC = 25 °C)
−
3.5
−
2.5 dB
45 mA
Side Mode Suppression Ratio SMSR 2.5 G/s-NRZ, PN 1/2 30 40 dB
Rise Time t
Fall Time t
Monitor Current I
Monitor Dark Current I
Monitor PD Terminal Capacitanc e C
Tracking Error
f
*1
= 10 log
γ
P
2 mW
(mW)
r
10-90%, Ib = 0.9 × I
f
90-10%, Ib = 0.9 × I
m
VR = 5 V, Pf = 2 mW 50 2 000
D
VR = 5 V, TC = 25 °C0.55.0nA
t
VR = 5 V 1.0 1.5 pF
*1
γ
Im = const. 1.0 dB
P
f
2
P
f
th
th
40 125 ps
100 200 ps
µ
TC = 25 ˚C
T
C
= 0 to +70 ˚C
A
0
I
m
(@ P
f
(25 ˚C) = 2 mW)
I
m
3
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