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DATA SHEET
LASER DIODE
NDL7910P
1 550 nm OPTICAL FIBER COMMUNICATIONS EA MODULATOR INTEGRATED MQW-DFB LASER DIODE MODULE FOR 2.5 Gb/s ULTRALONG-REACH APPLICATIONS
DESCRIPTION
The NDL7910P is an EA modulator integrated 1 550 nm DFB-LD for 2.5 Gb/s. The newly developed bandgap energy controlled Selective MOVPE technology is utilized as fabrication method. It is designed for 2.5 Gb/s ultralongreach applications.
FEATURES
* Integrated electroabsorption modulator * Low modulation voltage * Wavelength selectable for ITU-T standards * 14-pin butterfly package
PACKAGE DIMENSIONS
in millimeters
15.24 2.54
10 MIN. 1.25
TOP VIEW
#7 4- 2.67 22.3
12.70.15
#1 Thermistor MOD #14
- + Cooler PD
0.9
8.890.13
7
1
LD #8
8
14
0.5 20.830.13 26.040.13 Optical Fiber (SMF) Length: 1 m
5.15
6.0
PIN CONNECTIONS
Pin No. 1 2 3 4 5 6 7 Function Thermistor Thermistor LD DC Bias PD Anode PD Cathode Cooler Anode Cooler Cathode Pin No. 8 9 10 11 12 13 14 Function GND GND NC GND Signal Input (MOD), 50 RF Input GND GND
8.20.2
0.75
5.6
1.0
29.97 0.25
The information in this document is subject to change without notice.
Document No. P12456EJ3V0DS00 (3rd edition) Date Published November 1998 NS CP(K) Printed in Japan
The mark * shows major revised points.
(c)
1997
NDL7910P
ORDERING INFORMATION
Part Number NDL7910P NDL7910PC Available Connector Without Connector With FC-PC Connector
ABSOLUTE MAXIMUM RATINGS (TC = 25 C, unless otherwise specified)
Parameter Optical Output Power from Fiber Forward Current of LD Reverse Voltage of LD Forward Voltage of Modulator Reverse Voltage of Modulator Forward Current of PD Reverse Voltage of PD Cooler Current Cooler Voltage Operating Case Temperature Storage Temperature Lead Soldering Temperature (10 s) Symbol Pf IFLD VRLD VFm VRm IFPD VRPD IC VC TC Tstg Tsld Ratings 10 150 2.0 1 5 1 10 1.5 2.5 -20 to +70 -40 to +85 260 Unit mW mA V V V mA V A V C C C
ELECTRO-OPTICAL CHARACTERISTICS (TLD = 25 C, TC = -20 to +70 C, unless otherwise specified)
Parameter Operating Current Modulation Center Voltage Modulation Voltage Forward Voltage of LD Threshold Current Optical Output Power from Fiber Peak Emission Wavelength Spectral Line Width Side Mode Suppression Ratio Extinction Ratio Cut-off Frequency Rise Time Fall Time Isolation Symbol Iop VRmc VRmpp VFLD Ith Pf p VRm = 0 V, IFLD = Iop IFLD = Iop, VRm = 0 V IFLD = Iop, -20 dB, Under modulation IFLD = Iop, VRm = 0 V IFLD = Iop, Under modulation
*1 *1
Conditions
MIN. 50 0.5 2
TYP.
MAX. 100 1.5 3 1.8
Unit mA V V V mA mW
IFLD = Iop 7 0.5 1 545 4 30 10 3.2
20
1 560
nm GHz dB dB GHz
SMSR ER fC tr tf Is
IFLD = Iop, VRm = 1/2 VRmpp, -3 dB, 50 IFLD = Iop, 20-80 %, Under modulation IFLD = Iop, 80-20 %, Under modulation
*1 *1
125 125 30
ps ps dB
*1 2.48832 Gb/s, PRBS 2
23-1
, VRm =VRmc 1/2 VRmpp, NEC Test System
2
NDL7910P
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Monitor PD: TLD = 25 C, TC = -20 to +70 C)
Parameter Monitor Current Dark Current Tracking Error Monitor Capacitance Symbol Im ID
*1
Conditions IFLD = Iop, VRm = 0 V VRPD = 5 V Im = const. VRPD = 5 V, f = 1 MHz
MIN. 20
TYP.
MAX. 1 000 10 0.5 15
Unit
A
nA dB pF
Ct
*1 = 10 log
Pf Pop
(mW)
Pf TLD = TC = 25 C
Pop Pf
TLD = 25 C, TC = -20 to +70 C
0
Im (@ Pf (25 C) = Pop)
Im
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Thermistor and TEC: TLD = 25 C, TC = -20 to +70 C)
Parameter Thermistor Resistance B Constant Cooler Current Cooler Voltage Symbol R B IC VC TLD = 25 C Conditions MIN. 9.5 3 300 TYP. 10.0 3 400 MAX. 10.5 3 500 1.5 2.5 Unit k K A V
T = 70 - Tset T = 70 - Tset
3
NDL7910P
TYPICAL CHARACTERISTICS (TLD = 25 C, unless otherwise specified)
OPTICAL OUTPUT POWER FROM FIBER vs. FORWARD CURRENT OF LD (CW)
Optical Output Power from Fiber Pf (mW)
2.0 VRm = 0 V 1.5 0.5 V 1.0
EXTINCTION RATIO vs. MODULATION VOLTAGE (CW)
0
Extinction Ratio ER (dB)
5
10
15
0.5
1V 2V 3V 50 100 150 200
20
0
25 0
1
2
3
Forward Current of LD IFLD (mA)
Modulation Voltage VRmpp (V)
Remark The graphs indicate nominal characteristics.
4
NDL7910P
DFB-LD FAMILY FOR TELECOM
Absolute Maximum Ratings Part Number TC (C) Tstg (C) Typical Characteristics Ith (mA) TYP. NDL7603P Series NDL7620P Series NDL7701P Series NDL7705P Series NX8562LB NX8563LB Series NDL7910P -40 to +85 0 to +70 -20 to +85 -40 to +85 -20 to +65 -20 to +65 -20 to +70 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 15 45 (MAX.) 15 15 20 20 7 Pf (mW) MIN. 2 2 2 2 20 10 0.5 C (nm) TYP. 1 310 1 310 1 550 1 550 1 550 ITU-T 1 550
*1
SDH Application
Package
STM-4 : 622 Mb/s STM-16: 2.5 Gb/s STM-4 : 622 Mb/s STM-4 : 622 Mb/s CW Light Source for external modulator CW Light Source for external modulator STM-16: 2.5 Gb/s EA modulator integrated DFB-LD
Coaxial Coaxial Coaxial Coaxial BFY BFY BFY
*2
*1
*1 Wavelength selectable for ITU-T standards upon request. *2 Wavelength selectable for ITU-T standards.
5
NDL7910P
REFERENCE
Document Name NEC semiconductor device reliability/quality control system Quality grades on NEC semiconductor devices Semiconductor device mounting technology manual Semiconductor selection guide Document No. C11159E C11531E C10535E X10679E
6
NDL7910P
[MEMO]
7
NDL7910P
CAUTION
Within this device there exists GaAs (Gallium Arsenide) material which is a harmful substance if ingested. Please do not under any circumstances break the hermetic seal.
NEC Corporation
DANGER
INVISIBLE LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM OUTPUT POWER mW MAX WAVELENGTH nm CLASS lllb LASER PRODUCT
SEMICONDUCTOR LASER
NEC Building, 7-1, Shiba 5-chome, Minato-ku, Tokyo 108-01, Japan
Type number: Manufactured: Serial Number: This product conforms to FDA regulations as applicable to standards 21 CFR Chapter 1. Subchapter J.
AVOID EXPOSURE-Invisible Laser Radiation is emitted from this aperture
The export of this product from Japan is prohibited without governmental license. To export or re-export this product from a country other than Japan may also be prohibited without a license from that country. Please call an NEC sales representative.
No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document. NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Corporation or others. While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. NEC devices are classified into the following three quality grades: "Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. The recommended applications of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device before using it in a particular application. Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact an NEC sales representative in advance. Anti-radioactive design is not implemented in this product.
M4 96. 5

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