NEC NDL7620P_00

1310 nm OPTICAL FIBER
COMMUNICATIONS InGaAsP
STRAINED MQW-DFB LASER DIODE
COAXIAL MODULE FOR 2.5 Gb/s
NDL7620P
SERIES
FEATURES
DESCRIPTION
• PEAK EMISSION WAVELENGTH:
λP = 1310 nm
The NDL7620P Series is a 1310 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 a wide
temperature range of 0 to +70°C. It is designed for STM-16
applications.
• HIGH SPEED RESPONSE:
tr = 40 ps
tf = 100 ps
• INTERNAL OPTICAL ISOLATOR
• InGaAs MONITOR PIN-PD
• WIDE OPERATING TEMPERATURE RANGE:
TC = 0 to +70°C
• λ/4 - PHASE-SHIFTED DFB
ELECTRO-OPTICAL CHARACTERISTICS (TC = 0 to +70 °C, unless otherwise specified)
PART NUMBER
PACKAGE OUTLINE
SYMBOLS
NDL7620P Series
PARAMETERS AND CONDITIONS
UNITS
MIN
V
0.9
mW
2.0
TYP
VF
Forward Voltage, Pf = 2 mW, TC = 25°C
Pf
Optical Output Power from Fiber, IF = ITH + 40 mA
ITH
Threshold Current
mA
ηd
Differential Efficiency from Fiber, Pf = 2 mW
W/A
0.05
Temperature Dependence of Differential Efficiency
ηd (TC = 70° C)
from Fiber, ∆ηd = 10 log
ηd (TC = 25° C)
dB
-3.5
-2.5
Peak Emission Wavelength, Pf = 1 mW, Ib = ITH,
2.5 G/s-NRZ, PN 1/2
nm
1290
1310
Side Mode Suppression Ratio, Pf = 1 mW, Ib = ITH,
2.5 G/s-NRZ, PN 1/2
dB
30
40
tr
Rise Time, 10-90%, Ib = 0.9 x Ith
ps
40
125
200
∆ηd
λp
SMSR
1.4
45
tf
Fall Time, 90-10%, Ib = 0.9 X Ith
ps
100
Im
Monitor Current, VR = 5 V, Pf = 2 mW
µA
50
ID
Monitor Dark Current, VR = 5 V, TC = 25°C
nA
0.5
Ct
Monitor PD Terminal Capacitance, VR = 5 V
pF
1.0
γ1
Tracking Error, Im = const.
dB
Note:
1. γ = 10 log
MAX
1330
2000
5.0
1.5
1.0
Pf
Pf
2mW
(mW)
TC = 25°C
TC = 0 to +70°C
2
Pf
0
Im
(at Pf (25°C) = 2 mW)
Im
California Eastern Laboratories
NDL7620P SERIES
ABSOLUTE MAXIMUM RATINGS1
(TC = 0 to +70 °C, unless otherwise specified)
SYMBOLS
PARAMETERS
UNITS
RATINGS
150
IF
Forward Current of LD
mA
Pf
Optical Output Power from Fiber
mW
5.0
VR
Reverse Voltage of LD
V
2.0
10
IF
Forward Current of PD
mA
VR
Reverse Voltage of PD
V
20
TC
Operating Case Temperature
°C
0 to +70
TSTG
Storage Temperature
°C
-40 to +85
TSLD
Lead Soldering
Temperature (10 s)
°C
260
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
TYPICAL PERFORMANCE CURVES (TC = 25 °C, unless otherwise specified)
THRESHOLD CURRENT AND
OPERATION CURRENT
vs. CASE TEMPERATURE
OPTICAL OUTPUT POWER
FROM FIBER
vs. FORWARD CURRENT
100
Threshold Current, ITH (mA)
Operation Current, IOP (mA)
Output Power from Fiber, Pf (mW)
10
8
TC = 0 °C
25 °C
6
4
70 °C
2
0
20
40
60
80
Pf = 2 mW
IOP
50
30
Ith
20
10
5
-20
100
0
20
40
60
80
Case Temperature, TC (°C)
Forward Current, IF (mA)
FREQUENCY RESPONSE (S21)
RETURN LOSS CHARACTERISTICS (S11)
Pf = 2 mW
Response (3 dB/div.)
Return Loss (10 dB/div.)
Pf = 2 mW
0.05
2.25
Frequency, f (GHz)
5.05
0.05
2.55
Frequency, f (GHz)
5.05
NDL7620P SERIES
TYPICAL PERFORMANCE CURVES (TC = -40 to +85°C)
LONGITUDINAL MODE
LONGITUDINAL MODE
10
10
TC = 0 °C
2.488 Gb/s,
NRZ,
Ib = ITH
Relative Intensity
Relative Intensity
TC = 0 °C
2.488 Gb/s,
NRZ,
Ib = ITH
-30
-30
-70
-70
1.3054
1.3114
1.3254
1.3154
Wavelength, λ (nm)
EYE DIAGRAM
EYE DIAGRAM
TC = 70 °C
Relative Intensity
Relative Intensity
TC = 25 °C
Time Base (100 ps/div.)
Time Base (100 ps/div.)
ERROR RATE CHARACTERISTICS
10-5
2.5Gb/s, NRZ,
Ref. = -14 dB
10-6
Bit Error Rate
1.3314
1.3214
Wavelength, λ (nm)
10-7
back to back
- - - - after 50 km
TC = 0 °C
10-8
10-9
70 °C
10-10
10-11
-36
-35
-34
-33
-32
-31
Average Recieved Power, P (dBm)
-30
NDL7620P SERIES
OUTLINE DIMENSIONS (Units in mm)
NDL7620P
Optical Fiber
SM-9/125
Length: 1 m
NDL7620P1
φ3.2±0.25
Optical Fiber
SM-9/125
Length: 1 m
φ0.9
8
4.1±0.8
φ0.9
15
15
φ7±0.2
φ3.2±0.25
φ7±0.2
29.0±1.0
8
2±φ2.2
5.3±0.8
29.0±1.0
2.0±0.2
4.0±0.2
φ0.45±0.05
20±1.0
φ0.45±0.05
20±1.0
φ6±0.1
φ6±0.1
12.7±0.2
17.0±0.2
PD
P.C.D. = φ2
PD
4
43
3
P.C.D. = φ2
φ7±0.2
1
12
2
43
12
LD
4
7.2±0.3
3.7±0.3
1
1.0±0.1
CASE
3
2
LD
CASE
NDL7620P2
Optical Fiber
SM-9/125
Length: 1 m
φ3.2±0.25
φ0.9
ORDERING INFORMATION
15
φ7±0.2
8
29.3±1.0
0.5±0.2
2.5±1.0
19.5±1.0
0.3
2
3
1
4
12±0.15
16.0
7±0.2
AVAILABLE CONNECTOR
Without Connector
With FC-PC Connector
With SC-PC Connector
Without Connector
With FC-PC Connector
With SC-PC Connector
Without Connector
With FC-PC Connector
With SC-PC Connector
DESCRIPTION
No Flange
Flat
Mount
Flange
Vertical
Flange
2
P.C.D. = φ2
2-φ2.5
φ16
4-φ0.45±0.05
0.3
PART NUMBER
NDL7620P
NDL7620PC
NDL7620PD
NDL7620P1
NDL7620P1C
NDL7620P1D
NDL7620P2
NDL7620P2C
NDL7620P2D
PD
1
3
CASE
4
LD
EXCLUSIVE NORTH AMERICAN AGENT FOR
RF, MICROWAVE & OPTOELECTRONIC SEMICONDUCTORS
CALIFORNIA EASTERN LABORATORIES • Headquarters • 4590 Patrick Henry Drive • Santa Clara, CA 95054-1817 • (408) 988-3500 • Telex 34-6393 • FAX (408) 988-0279
24-Hour Fax-On-Demand: 800-390-3232 (U.S. and Canada only) • Internet: http://WWW.CEL.COM
02/01/2000
DATA SUBJECT TO CHANGE WITHOUT NOTICE