NDL7701P_00 Datasheet, PDF (1/2 Pages) NEC – 1550 nm OPTICAL FIBER COMMUNICATIONS InGaAsP STRAINED MQW-DFB DC-PBH LASER DIODE MODULE

1550 nm OPTICAL FIBER
COMMUNICATIONS InGaAsP
STRAINED MQW-DFB DC-PBH
LASER DIODE MODULE
NDL7701P
SERIES
FEATURES
• PEAK EMISSION WAVELENGTH:
λP = 1550 nm
• LOW THRESHOLD CURRENT:
ITH = 15 mA @ TC = 25°C
• InGaAs MONITOR PIN-PD
• WIDE OPERATING TEMPERATURE RANGE:
TC = -20 to +85°C
• BASED ON BELLCORE TA-NWT-000983
DESCRIPTION
The NDL7701P Series is a 1550 nm λ/4-phase-shifted DFB
(Distributed Feed-Back) laser diode with single mode fiber.
The 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
-20 to +85°C. It is designed for all STM-1 and STM-4 applica-
tions.
ELECTRO-OPTICAL CHARACTERISTICS (TC = -20 to +85°C, unless otherwise specified)
PART NUMBER
PACKAGE OUTLINE
NDL7701P Series
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
VF
Forward Voltage, Pf = 2 mW, TC = 25°C
V
ITH
Threshold Current, TC = 25°C
mA
15
ηd
Differential Efficiency from Fiber, Pf = 2 mW, TC = 25°C
W/A
0.1
∆ηd
Temperature Dependence of Differential Efficiency
dB
-3.0
-2.5
from Fiber, ∆ηd = 10 log ^{ηd (TC = 85°C)}
ηd (TC = 25°C)
λp
Peak Emission Wavelength, Pf = 1 mW, PN 1/2,
nm
Ib = ITH, 622 Mb/s-NRZ
SMSR
Side Mode Suppression Ratio, Pf = 1 mW, PN 1/2,
dB
Ib = ITH, 622 Mb/s-NRZ
tr
Rise Time, 10-90%, TC = 25°C
ns
tf
Fall Time, 90-10%, TC = 25°C
ns
Im
Monitor Current, VR = 5 V, Pf = 2 mW
µA
ID
Monitor Dark Current, VR = 5 V, TC = 25°C
nA
γ¹
Tracking Error, Im = const.
dB
1530
30
100
1550
0.1
MAX
1.3
25
1570
0.5
0.5
5
1.0
Note:
Pf
1. γ = 10 log _2mW
Pf
(mW)
2
Pf
0
TC = 25°C
TC = -20 to +85°C
Im
(at Pf (25°C) = 2 mW)
Im
California Eastern Laboratories