1738U-Type Small Form-Factor
Erbium-Doped Fiber Amplifier with Uncooled Pump
Preliminary Data Sheet
March 2001
Compact size and extremely low power consumption make
the 1738U-Type EDFA an ideal solution for single-channel,
preamplification appl ications in C-band.
Features
Economical, compact package:
90 mm x 70 mm x 12 mm
Extremely low power consumption: <875 mW
Single-channel amplification in C-band
(1528 nm—1562 nm)
Uncooled 980 nm pump laser module
Wide operating temperature range:
–5 °C to +70 °C
Optical input tap
Isolated input and output
Connectorized single-mode fiber pigtail
Applications
Single-channel links in:
— Metro systems
— Long-haul transport
— Switch matrix
Description
The 1738U-Type Uncooled Small Form-Factor
Erbium-Doped Fiber Amplifier (SFF EDFA) is
designed for single-channel amplification in C-band
applications. The device is manufactured in an eco-
nomical SFF package and exhibits extremely low
power dissipation over a wide operating temperature
range.
Optimum performance and system stability are sup-
ported through the use of optical isolation at the input
and output. Optical input and output functions are
achieved through single-mode fiber pigtails termi-
nated with optical connectors. The EDFA incorpo-
rates an optical input tap and monitor photodiode.
2Ager e Systems Inc.
1738U-Type Small Form-Factor Preliminary Data Sheet
Erbium-Doped Fiber Amplifier with Uncooled Pump March 2001
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Electrical/Optical Operational Characteristics
Parameter Symbol Min Max Unit
Operating Case Temperature Range TOP –5 70 °C
Storage Case Temperature Range Tstg –40 85 °C
Lase r Forward Current IF 500 mA
Laser Revers e Volta ge VR—2.5V
Table 1. Optical/Electrical Characteristics
Parameter Symbol Conditions Min Max Unit
Wa velength Range λ 1528 1562 nm
Optic al Output Power POUT PIN = –30 dBm to –8 dBm –5 dBm
Optical Input Power PIN –30 –8 dBm
Noise Figure NF PIN = –30 dBm
PIN = –20 dBm
PIN = –15 dBm
PIN = –8 dBm
5.5
5.7
6.8
8.5
dB
dB
dB
dB
Operating Laser Forward Current IF,OP ——350mA
Operating Laser Forward Voltage VF,OP ——2.5V
Power Consumption PC——875mW
ASE Noise Power at Optical Input Port PASE,I PIN = –30 dBm,
POUT = –5 dBm –20 dBm
Output Leakage Pump Power PLEAK,O PIN = –30 dBm,
POUT = –5 dBm,
λ = 1562 nm
–26 dBm
Reverse Isolation IISO PIN = –30 dBm 25 dB
Input Monitor Tap Responsivity RTAP 0.032 0.063 A/W
Polarization Sensitivity PDG 0.5 dBp-p
Polarization Mode Dispersion PMD 0.5 ps
Optical Input Return Loss RLI—30dB
Optical Output Return Loss RLO—30dB
3
Agere Systems Inc.
Preliminary Data Sheet 1738U-Type Small Form-Factor
March 2001 Erbium-Doped Fiber Amplifier with Uncooled Pump
Pin Information
Table 2. Pin Descriptions
Pin Description Pin Description
1 Ground Monitor Photodiode 11 Not Connected
2 Input Monitor Photodiode Cathode 12 Not Connected
3 Input Monitor Photodiode Anode 13 Not Connected
4 Not Connected 14 Not Connected
5 Not Connected 15 Not Connected
6 Thermistor 1 16 Not Connected
7 LD+ (pump anode) 17 Ground Pump
8 LD+ (pump anode) 18 Thermistor 2
9 Pump Monitor Photodiode Cathode 19 LD– (pump cathode)
10 Pump Monitor Photodiode Anode 20 LD– (pump cathode)
4Ager e Systems Inc.
1738U-Type Small Form-Factor Preliminary Data Sheet
Erbium-Doped Fiber Amplifier with Uncooled Pump March 2001
Outline Diagram
Dimensions are in inches and (millimeters): 2.75 x 3.54 x 0.47 (70 x 90 x 12).
0.353
(8.98)
2x M2.5 TAPPED HOLES
2.834
(72.00)
0.098
(2.50)
2x 0.77
(4.50)
0.285
(7.24)
0.324
(8.24)
0.472
(11.99)
0.768
(9.50)
0.353
(8.96)
2.834
(72.00)
2x M2 .5 TAPPED HOLES
0.098
(2.50)
60.0°
OUTIN
3.540
(89.92)
3.268
(83.00)
2.750
(69.85)
0.136
(3.46)
9x 0.079
(2.0)
1.024
(26.00)
(PIN 1)
0.079
(2.01)
LABEL AS REQ UIRED/
PRODUCT INFORMATIO N
(PIN1)
PIN 19
PIN 20 2.480
(63.00)
0.135
(3.43)
4x M4.0
THUR HOLES
1-1257(F)
5
Agere Systems Inc.
Preliminary Data Sheet 1738U-Type Small Form-Factor
March 2001 Erbium-Doped Fiber Amplifier with Uncooled Pump
Laser Safety Information
Class IIIb Laser Product
FDA/CDRH Class IIIb laser product. All versions of the device are Class IIIb laser products per CDRH, 21 CFR
1040 Laser Safety requirements. All versions are Class IIIb laser products per
IEC
* 60825-1:19 93. The devices
have been classified with the FDA under an accession number to be determined.
This product complies with 21 CFR 1040.10 and 1040.11.
8.8 µm/125 µm single-mode fiber pigtail with connector options
Wavelength = 1.5 µm
Maximum power = 10 mW
Product is not shipped with power supply.
CAUTION: Use of controls, adjustments, and procedures other than those specified herein may result in
hazardous laser radiation exposure.
*
IEC
is a registered trademark of the International Electrotechnical Commission.
DANGER
INVISIBLE LASER RADIATION
EMITTED FROM END OF
FIBER OR CONNECTOR
Avoid direct exposure to beam
Do not view beam directly with
optical instruments
LASER APERTURE
INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR
Avoid e xposure to beam
Class 3B L aser Product IEC-60825M 1993 Max. Output: 10 m W Wavelen gth 1.5
µ
m
For additional informatio n, co nta ct you r Agere Systems Account Ma na ger or the following:
INTERNET: http://www.agere.com
E-MAIL: docmaster@micro.lucent.com
N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286
1-800-372-2447, FAX 610-71 2-4106 (In CANA DA: 1-800-553-2448, FAX 610-712-4106)
ASIA PACIFIC: Agere Systems Singa pore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118 25 6
Tel. (65) 778 8833, FAX (65) 777 7495
CHINA: Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Centur y Boulevard Pudong, Shanghai 2 00 121 PRC
Tel. (86) 21 50471212, FAX (86) 21 50472266
JAPAN: Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan
Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700
EUROPE: Data Requests: DATAL I NE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148
Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 134 4 865 900 (Ascot UK)
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
Copyright © 2001 Agere Systems Inc.
All Rights Reserved
March 2001
DS01-101OPTO
1738U-Type Small Form-Factor Preliminary Data Sheet
Erbium-Doped Fiber Amplifier with Uncooled Pump March 2001
Ordering Information
* For additional ordering information, please contact an Agere Systems account manager at OPTO West, 1-800-362-3891 (for sales staff,
please press option 2).
Coding Scheme
Example: 1738Uαβγ
α = Optical connector indicator:
A = SC/APC
B = LC/APC
C = FC/APC
β = Electrical connection:
A = Male 2 x 10 at 2 mm spacing
B = future use
γ = Future use
Table 3. Ordering Information*
Device Code Connector Electrical Connection Comcode
1738UAA SC/APC Male 2 x 10 at 2 mm spacing TBD
1738UBA LC/APC Male 2 x 10 at 2 mm spacing TBD
1738UBA FC/SPC Male 2 x 10 at 2 mm spacing TBD