High performance both Suitable harsh environments. Higher sensitivity

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High performance both Suitable harsh environments. Higher sensitivity

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127A/B/C InGaAs Avalanche Photodetectors
High performance both Suitable harsh environments. Higher sensitivity longer wavelength response than germanium APDs. Permanently locked fiber alignment high coupling stability. Reliable planar structure with InGaAsP layer dual guard ring high-speed performance. Wide bandwidth: >1.0 (127A) >1.8 (127B) >2.5 (127C) Compatible with industry-standard packaging. Applications high data rates: Gbits/s (127A) Gbits/s (127B/C). capacitance. Standard pigtail multimode fiber with FC/PC connector; other pigtails connectors available request.
127A/B/C APDs compatible with industry-standard packages.
Applications
Telecommunications High-speed, long-haul communication systems High-speed metropolitan area networks Submarine cable communication systems Military Very low-noise receivers Satellite transmission Optical radar Free-space optical communication systems
127A/B/C InGaAs Avalanche Photodetectors
munication systems extremely sensitive optical measurement systems. 127A/B/C APDs incorporate hermetically sealed, ceramic package that bonded within metal flange. multimode, fiber-optic pigtail, which terminated with FC/PC connector, aligned with photodetector chip means metal flange. Other pigtails connectors available upon request. 127A 127B differ only bandwidth. 127C modified crystalline layers provide increased bandwidth.
Description
Lucent Technologies Microelectonics Group 127A/B/C InGaAs Avalanche Photodetectors (APDs) high-performance optical devices that sensitive both wavelengths. APDs feature high sensitivity wide bandwidths capable data rates Gbits/s. chip fabricated vapor-phase epitaxy planar structure high reliability. Common applications include long-distance lightwave telecom-
Absolute Maximum Ratings
Stresses excess Absolute Maximum Ratings cause permanent damage device. These absolute stress ratings only. Functional operation device implied these other conditions excess those given operational sections data sheet. Exposure Absolute Maximum Ratings extended periods adversely affect device reliability. Parameter Operating Case Temperature Storage Case Temperature* Reverse Current Lead Soldering Temperature/Time Symbol Tstg 275/10 Unit °C/s
Upper storage temperature limited multimode fiber.
Electrical Characteristics
Table General Electrical Characteristics measurements light. Parameter Breakdown Voltage: 127A 127B 127C Temperature Coefficient: 127A 127B 127C Maximum Gain: 127A 127B 127C Primary Dark Current: 127A 127B 127C Symbol Mmax Mmax Mmax Conditions 0.15 0.15 0.12 0.20 0.20 0.15 0.30 0.30 0.20 Unit %/°C %/°C %/°C
Lucent Technologies Inc.
127A/B/C InGaAs Avalanche Photodetectors
Electrical Characteristics (continued)
Table General Electrical Characteristics (continued) measurements light. Parameter Total Dark Current: 127A 127B 127C Bandwidth: 127A 127B 127C Excess Noise Factor: 127A 127B 127C Capacitance: 127A 127B 127C Gain Coefficient:* 127A 127B 127C Responsivity: 127A 127B 127C
Symbol
Conditions
Unit
coefficient breakdown voltage given each APD. gain voltage (for calculated from these para meters per: A/(Vbr Responsivity quantum efficiency coupling efficiency gain (/1.24).
Lucent Technologies Inc.
127A/B/C InGaAs Avalanche Photodetectors
Characteristic Curves
1-586
1-589
Figure Frequency Response (127A/B) Figure Frequency Response (127C)
Note: Responsivity chip quantum efficiency pigtail coupling efficiency gain (µm)/1.24. minimum chip quantum efficiency 80%, minimum pigtail coupling efficiency 90%. 1-588
1-587
Figure 1/Gain Reverse Bias
Figure Responsivity Wavelength
Lucent Technologies Inc.
127A/B/C InGaAs Avalanche Photodetectors
Characteristic Curves
(continued)
1-606
Figure Dark Current Reverse Bias (127A/B)
1-321
Figure Excess Noise Factor Gain Figure Excess Noise Factor Gain
1-607
Figure Dark Current Reverse Bias (127C)
Note: temperature dependence 127C dark current the(C) 1-608 same 127A/B.
Figure Dark Current Voltage Function Temperature Increments
Lucent Technologies Inc.
127A/B/C InGaAs Avalanche Photodetectors
Characteristic Curves (continued)
Receiver Sensitivity
following figure illustrates typical receiver sensitivity receiver rate Gbits/s InGaAs PIN, APD, InGaAs APD.
1-491
Figure Receiver Sensitivity
Lucent Technologies Inc.
127A/B/C InGaAs Avalanche Photodetectors
Qualification Information
127-Type Module been subjected following qualification tests with intent meeting Bellcore TR-NWT-000468 requirements. tests have performed specifically pieceparts from similar, already qualified designs. example, hermetic ceramic package already been qualified from previous products using same part; therefore, high-temperature operating bias test required. some test parameters fully meet requirements, limitations test equipment involved. indicated tests, failure criteria includes change breakdown voltage greater than increase multiplied dark current greater than twice original value, total nA.; change responsivity greater than 10%; increase primary dark current greater than twice original, total Table Qualification Test Program Test Name Temperature Cycle Vibration Test Conditions cycles, acceleration frequency range: 1500 max, minimum cycle time min., axes Acceleration 1500 number blows each direction shock pulse duration number axes Same vibration shock administered sequentially same devices hours 1000 hours, devices used from hightemperature storage cell devices hours devices hours cycles, day/cycle, each cycle 100% times parallel feedthrough; same devices times parallel feedthrough from package body Sample Size/ Failures 10/0 10/0
Mechanical Shock
10/0
Mechanical Sequence High-Temperature Storage High-Temperature Storage Damp Heat
10/0 10/0 10/0 16/0
Cyclic Moisture Resistance Fiber Pull Resistance Soldering Heat
10/0
Lucent Technologies Inc.
127A/B/C InGaAs Avalanche Photodetectors
Ordering Information
Description InGaAs Avalanche Photodetector Part Number 127A 127B 127C Comcode 105742969 105742977 106186299
additional information, contact your Microelectronics Group Account Manager following: http://www.lucent.com/micro, Optoelectronics information, INTERNET: docmaster@micro.lucent.com E-MAIL: AMERICA: Microelectronics Group, Lucent Technologies Inc., Union Boulevard, Room 30L-15P-BA, Allentown, 18103 1-800-372-2447, 610-712-4106 CANADA: 1-800-553-2448, 610-712-4106) ASIA PACIFIC: Microelectronics Group, Lucent Technologies Singapore Pte. Ltd., Science Park Drive, #03-18 Cintech III, Singapore 118256 Tel. (65) 8833, (65) 7495 CHINA: Microelectronics Group, Lucent Technologies (China) Co., Ltd., A-F2, 23/F, Fong Universe Building, 1800 Zhong Shan Road, Shanghai 200233 China Tel. (86) 6440 0468, ext. 316, (86) 6440 0652 JAPAN: Microelectronics Group, Lucent Technologies Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan Tel. (81) 5421 1600, (81) 5421 1700 EUROPE: Data Requests: MICROELECTRONICS GROUP DATALINE: Tel. (44) 1189 299, (44) 1189 Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 (Bracknell
Lucent Technologies Inc. reserves right make changes product(s) information contained herein without notice. liability assumed result their application. rights under patent accompany sale such product(s) information.
Copyright 1998 Lucent Technologies Inc. Rights Reserved Printed U.S.A.
September 1998 DS98-426LWP (Replaces DS95-103LWP)

High performance both Suitable harsh environments. Higher sensitivity

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