1500 nm OPTICAL FIBER COMMUNICATIONS InGaAsP MQW-DFB LASER DIODE COAXIAL MODULE
FEATURES
• PEAK EMISSION WAVELENGTH: λP = 1550 nm • OPTICAL OUTPUT POWER: Pf = 2.0 mW • INTERNAL OPTICAL ISOLATOR • InGaAs MONITOR PIN-PD • WIDE OPERATING TEMPERATURE RANGE: TC = -40 to +85°C • λ/4 - PHASE-SHIFTED DFB
NDL7705P SERIES
DESCRIPTION
The NDL7705P Series is a 1550 nm phase-shifted DFB (Distributed Feed-Back) laser diode module with optical isolator. Newly developed strained Multiple Quantum Well (MQW) structure is adopted to achieve stable dynamic single longitudinal mode operation over a wide temperature range of -40 to +85°C. It is designed for all STM-1and STM-4 applications.
ELECTRO-OPTICAL CHARACTERISTICS (TC = -40 to +85°C, unless otherwise specified)
PART NUMBER PACKAGE OUTLINE SYMBOLS VF ITH ηd ∆ηd PARAMETERS AND CONDITIONS Forward Voltage, IF = 30 mA Threshold Current, TC = 25˚C TC = 85˚C Differential Efficiency from Fiber, TC = 25˚C TC = 85˚C Temperature Dependence of Differential Efficiency from Fiber, ∆ηd = 10 log ηd (TC = 85° C) ηd (TC = 25° C) Peak Emission Wavelength, Pf = 1 mW Side Mode Suppression Ratio, Pf = 1 mW Rise Time, Ib = 0.9 x Ith ns Fall Time, Ib = 0.9 X Ith ns Monitor Current, VR = 5 V, Pf = 2 mW Monitor Dark Current, VR = 5 V, TC = 25°C Tracking Error, Im = const.(Pf = 2 mW, TC = 25˚C) Relative Intensity Noise, Ref = -14 dB, Pf = 1 mW µA nA dB dB/Hz -140 300 0.1 UNITS V mA W/A dB 0.070 0.035 -3 MIN 0.9 15 35 0.120 0.075 -2 NDL7705P Series TYP MAX 1.3 50
λp SMSR tr tf Im ID γ1 RIN Note:
nm dB
1530 30
1550 0.5 0.5
1570
2500 5 1.0 -130
1. γ = 10 log
Pf 2 mW
Pf (mW) 2 Pf
TC = 25°C TC = -40 to +85°C
0
Im (at Pf (25°C) = 2 mW)
Im
California Eastern Laboratories
NDL7705P SERIES ABSOLUTE MAXIMUM RATINGS1
(TC = 25°C, unless otherwise specified) SYMBOLS IF Pf VR IF VR TC TSTG TSLD PARAMETERS Forward Current of LD Optical Output Power Reverse Voltage of LD Forward Current of PD Reverse Voltage of PD Operating Case Temperature Storage Temperature Lead Soldering Temperature (10 s) UNITS mA mW V mA V °C °C °C RATINGS ITH+50 5.0 2.0 2.0 15 -40 to +85 -40 to +85 260
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)
OPTICAL OUTPUT POWER vs. FORWARD CURRENT
4.0
C
4.0
OPTICAL OUTPUT POWER vs. MONITOR CURRENT
TC = -40°C +25°C 3.0 +85°C
OPtical Output Power , Pf (mW)
25°
85 °C
0°C
3.0
OPtical Output Power , Pf (mW)
TC
= -4
2.0
2.0
1.0
1.0
0
20
40
60
80
100
0.0
0.4
0.8
1.2
1.6
2.0
Forward Current, IF (mA)
Monitor Current, IM (mA)
OPERATING CURRENT AND THRESHOLD CURRENT vs. CASE TEMPERATURE
100
FOWARD CURRENT vs. FORWARD VOLTAGE
50
Threshold Current, ITH (mA) Operation Current, IOP (mA)
IOP at Pf = 2 mW
Forward Current, IF (mA)
40
30
10
ITH
20
10
1 -60 -40 -20 0 20 40 60 80 100
0
0.5
1.0
1.5
2.0
2.5
Case Temperature, TC (°C)
Forward Voltage, VF (V)
NDL7705P SERIES TYPICAL PERFORMANCE CURVES (TC = 25°C, unless otherwise specified)
TEMPERATURE DEPENDENCE OF DIFFERENTIAL EFFICIENCY FROM FIBER TEMPERATURE DEPENDENCE OF PEAK EMISSION WAVELENGTH
1560
Differential Efficiency from Fiber, ηd (W/A)
0.18
Peak Emission Wavelength, λp (nm)
-60 -40 -20 0 20 40 60 80 100
1555
0.12
1550
0.06
1545
0.00
1540 -60 -40 -20 0 20 40 60 80 100
Case Temperature, TC (°C)
Case Temperature, TC (°C)
LONGITUDINAL MODE FROM FIBER
10 0
EYE DIAGRAM
Relative Intensity, (dB)
-10 -20 -30 -40 -50 -60 -70 1540.4 1550.4 1560.4
Relative Intensity, (dB)
622 Mb/s-NRZ, Ref = -14dB, 2 Vp-p (6 dB ATT), IB = ITH X 0.9
Time Base (500 ps/div.)
Wavelength, λ (nm)
ERROR RATE CHARACTERISTICS
10-6 TC = -40°C, Ref = -14 dB, 622 Mbps-NRZ, 2 Vp-p, IB = ITH X 0.9
10-6 TC = 25°C, Ref = -14 dB, 622 Mbps-NRZ, 2 Vp-p, IB = ITH X 0.9
10-6
10-7
10-7
10-7
TC = 85°C, Ref = -14 dB, 622 Mbps-NRZ, 2 Vp-p, IB = ITH X 0.9
Bit Error Rate
10-8
10-8
10-8
10-9 10-10 10-11 10-12 -40 -39 -38 -37 -36 -35 -34 -33 back to back after 200 km
10-9 10-10 10-11 10-12 -40 -39 -38 -37 -36 -35 -34 -33 back to back after 200 km
10-9 10-10 10-11 10-12 -40 -39 -38 -37 -36 -35 -34 -33 back to back after 200 km
Average Received Power, P (dBm)
NDL7705P SERIES OUTLINE DIMENSIONS (Units in mm)
NDL7705P
Optical Fiber SM-9/125 Length: 1 m Optical Fiber SM-9/125 Length: 1 m
NDL7705P1
φ3.2±0.25
φ0.9
φ3.2±0.25
φ0.9
φ7±0.2
15 27.8±1.0 8.2
15 φ7±0.2 27.8±1.0
2±φ2.2
8.2
3.4±0.8
4.6±0.8 20±1.0 φ0.45±0.05
2.0±0.2 4.0±0.2 20±1.0 φ0.45±0.05
φ6±0.1
φ6±0.1 12.7±0.2 17.0±0.2 PD PD 3 2 LD CASE P.C.D. = φ2
43 12
P.C.D. = φ2
43 12
4 φ7±0.2 1
4 7.2±0.3 3.7±0.3 1 LD CASE
3 2
1.0±0.1
NDL7705P2
Optical Fiber SM-9/125 Length: 1 m
φ3.2±0.25
φ0.9
ORDERING INFORMATION
15
φ7±0.2 8.2 28.1±1.0
0.5±0.2 0.3 2.5±1.0 19.5±1.0 0.3
4-φ0.45±0.05
PART NUMBER NDL7705P NDL7705PC NDL7705PD NDL7705P1 NDL7705P1C NDL7705P1D NDL7705P2 NDL7705P2C NDL7705P2D
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
φ16
2 3 1 4
P.C.D. = φ2 2-φ2.5 7±0.2 3
2 PD 1 CASE 4 LD
12±0.15 16.0
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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 03/15/2000 DATA SUBJECT TO CHANGE WITHOUT NOTICE