L-D2300 - Agere Systems, Inc.

Preliminary Data Sheet

February 2000

1725 -Type Gain Block

Erb i um -Doped Fiber Ampli fier

Characterized by extremely flat gain over a wide 1.5 µm

wavelength ran ge, the 1725-Type Gain Block EDFA features a

number of input and output taps f or amplifier and system

diagnostics.

Features

■High saturated output power, >14 dBm (upgrad-

able to 17 dBm and 20 dBm)

■Wide opera ting wavelength range,

1530 nm—1560 nm

■Extr emely fla t gain pro fil e, <1 d B typical

■Ver y low noise figure

■Interstage access for system customization

■Input and output monitors for easy system diagno-

sis

■Isolated i nput and output ports

■Wide opera ting tem perature range,

–5 °C to +70 °C

Applications

■Designed for DW DM applications

■In-line DWDM amplifier with interstage access for

dispersion compensating fiber (DCF), or optical

add/drop multiplexers (OADMs)

■Bidirectional preamp and booster amplifier

22 Agere Systems Inc.

Preliminary Data Sheet

F ebruary 200 0

Er bi um- D oped Fiber Amplifi e r

1725-Type Gain Block

Description

The Agere Sy stems Inc. 1725-type gain block erbium-

doped fiber amplifier (EDFA) is a multistage gain block

specifically des igned for use in high-performance

D WD M syst ems. Thi s design achie v es an e xtrem ely flat

gain profile over the entire 1530 nm to 1560 nm wave-

length range.

Port s are provided for access to the midstage of the

amplifier. The amplifier desig n can accommodate up to

9 dB of loss through these ports. This midstage access

allows the user to customize the 1725-type amplifier to

meet system needs. Typical uses for this f eature include

using dispersion - compensating fiber (DCF) or optical

add/drop multiplexers (OADMs).

Another advanced f eature of the 1725-type EDFA is that

the nominal output power of 14 dB m can be increased

by providing additional 1480 nm pump power. To facili-

tate this , the 1725 EDFA contains a port terminated with

an SC/AP C optical con nector to whi ch an e xternal 1480

nm pump laser module may be connected. T his allows

the customer the flex ibility to upgrade the output power

of the amplifier as system requirement s change.

Input and outpu t tap monitor ports are standard fea-

tures that aid the customer w ith amplifier and system

diagnostics. All inputs and outputs are isolated to

reduce the effects of reflections on amplifier perfor-

mance.

The device has been qualified for DWDM applic ations

and meet s the intent of Telcordia Technologies * GR-

1312-CORE.

Pin Information

Table 1. P in Descriptions

Pin Description

1 Pu mp 1 TEC (–)

2 Pu mp 1 TEC (–)

3 Pump 1 Laser Cathode

4 Pump 1 Laser Anode

5 Pu mp 2 TEC (+)

6 Pu mp 2 TEC (+)

7 Pump 2 Th ermistor (+)

8 Pump 2 Th ermistor (–)

9Pump 2 Back-facet Monitor Cathode (+)

10 Pum p 2 Back-facet Monitor Anode (–)

11 EDFA Case

12 NC

13 Pump 1 TEC (+)

14 Pump 1 TEC (+)

15 Pump 1 Thermistor (+)

16 Pump 1 Thermistor (–)

17 Pump 1 Back-facet Monitor Cathode (+)

18 Pum p 1 Back-facet Monitor Anode (–)

19 Pu mp 2 TEC (–)

20 Pu mp 2 TEC (–)

21 Pump 2 Laser Anode

22 Pump 2 Laser Cathode

1-1055(F)

Figure 1. Block Dia gram

* Telcordia Technologies is a trademark of Bell Communications Research, Inc.

OPTICAL

GAIN

OPTICAL

INPUT

SIGNAL

PREAM P SEC TION

OPTICAL

GAIN

BOOSTER SECTI ON

INTERSTAGE

(9 dB LOSS) OPTICAL

OUTPUT

SIGNAL

PORT FOR

ADDITION AL

PUMP POW ER

INPUT

TAP OUTPUT

TAP INPUT

TAP OUTPUT

Agere Systems Inc. 3

Pre liminary Data Sheet

February 2000 Erbium-Doped Fiber Amplifier

1725-Type Gain Block

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Th ese 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 o f the data sheet. Exposure to absolute maximum rat ings for extended

per iods can adversely affect device reliability.

Optical Characteristics

Parameter Symbol Min Max Unit

Storage Temperature Tstg –40 85 °C

Operating Temperature TOP –5 70 °C

Bias Current First-stage Pump IBS1 —400 mA

Bias Current Seco nd-stage Pump IBS2 —800 mA

Pump Laser Reverse Voltage VR—2 V

TEC Current First-stage Pump ITECS1 —1.5 A

TEC C urrent Second-stage Pum p ITECS2 —1.6 A

Mo nitor Revers e B i a s Vol t age V RMON —10 V

Temperature S ens or Current TSEN —5 mA

Table 2a. Performance Specifi catio ns

Parameter Symbol Conditions Min Max Unit

Wavelen gth Range λ— 1530.3 1560.6 nm

EOL Optical Output P ower POUT PIN = –14 dBm 14 — dBm

Gain Flatness GF PIN = –14 d Bm,

9 dB inters tage loss —1.5dB

Noise Figure NF PIN = –14 dBm — 6.0 dB

First-stage Pump Bias IF1 — — 330 mA

Second-stage Pump Bias IF2 — — 800 mA

First-stage Pump Forward Voltage IVF1 ——2.5V

Second-stage Pump Forward Voltage IVF2 ——2.5V

First-stage Pump TEC Current ITEC1 Case temperature = 70 °C,

bias current s = EOL values —1.5A

Second-stage Pump TEC Current ITEC2 Case temperature = 70 °C,

bias current s = EOL values —1.5A

First-stage Pump TEC Voltage VTEC1 Case temperature = 70 °C,

bias current s = EOL values —3.0V

Second-stage Pump TEC Voltage VTEC2 Case temperature = 70 °C,

bias current s = EOL values —4.0V

First-stage Pump Photodetec to r Current IPD1 — 270 2500 µA

Second-stage Pump Photodetector

Current IPD2 — 100 2250 µA

4Agere Systems Inc.

Preliminary Data Sheet

F ebruary 200 0

Er bi um- D oped Fiber Amplifi e r

1725-Type Gain Block

Optical Characteristics (continued)

Table 2 b. Perfor m ance S pecifications (Enhanced 17 dB m Version)

Parameter Symbol Conditions Min Max Unit

Wavelength Range λ— 1530.3 1560.6 nm

EOL Optic al Output Power POUT PIN = –11 dBm 17 — dBm

Optical Power from External Pump — — — 120 mW

Cente r Wavel ength for Exter nal Pump — — 1460 1488 nm

Gain Flatness GF PIN = –11 dBm,

9 dB inter stage loss —1.5dB

Noise Figure NF PIN = –11 dBm — 6.25 dB

First-stage Pu mp Bias IF1 — — 330 mA

Second-stage Pump B ias IF2 — — 800 mA

First-stage Pump Forward Vol tage IVF1 ——2.5V

Second-stage Pump Forward Voltage IVF2 ——2.5V

First-stage Pump TEC Curren t ITEC1 Case temperature = 70 °C,

bias currents = EOL value s —1.5A

Second-stage Pump T EC Current ITEC2 Case t emperature = 70 °C,

bias currents = EOL value s —1.5A

First-stage Pump TEC Voltage VTEC1 Case temperature = 70 °C,

bias currents = EOL value s —3.0V

Second-stage Pump T EC Voltage VTEC2 Case temperature = 70 °C,

bias currents = EOL value s —4.0V

First-stage Pump Photodetector Current IPD1 — 270 2500 µA

Second-stage Pump P hotodetector

Current IPD2 — 100 2250 µA

Agere Systems Inc. 5

Pre liminary Data Sheet

February 2000 Erbium-Doped Fiber Amplifier

1725-Type Gain Block

Optical Characteristics (continued)

Table 2c. Performance Specificatio ns (Enhanced 20 dBm Version)

Parameter Symbol Conditions Min Max Unit

Wavelen gth Range λ— 1530.3 1560.6 nm

EOL Optical Output P ower POUT PIN = –8 dBm 20 — dBm

Optical Power from External Pump — — — 330 mW

Center Wavelength for External Pump — — 1460 1488 nm

Gain Flatness GF PIN = –8 dBm,

9 dB inters tage loss —1.5dB

Noise Figure NF PIN = –8 dBm — 7.0 dB

First-stage Pump Bias IF1 — — 330 mA

Second-stage Pump Bias IF2 — — 800 mA

First-stage Pump Forward Voltage IVF1 ——2.5V

Second-stage Pump Forward Voltage IVF2 ——2.5V

First-stage Pump TEC Current ITEC1 Case temperature = 70 °C,

bias current s = EOL values —1.5A

Second-stage Pump TEC Current ITEC2 Case temperature = 70 °C,

bias current s = EOL values —1.5A

First-stage Pump TEC Voltage VTEC1 Case temperature = 70 °C,

bias current s = EOL values —3.0V

Second-stage Pump TEC Voltage VTEC2 Case temperature = 70 °C,

bias current s = EOL values 4.0 V

First-stage Pump Photodetec to r Current IPD1 — 270 2500 µA

Second-stage Pump Photodetector

Current IPD2 — 100 2250 µA

Table 3. Input/Output Monit or Specifications

Parameter Min Max Unit

Wavelength Range 1530.3 1560.6 nm

First-st age In put Monitor ing Loss 11.5 14.5 dB

First-stage Output Monitor ing Loss 11.5 14.5 dB

Second-stage Input Monitoring Loss 11.5 14.5 dB

Second-stage Output Monitoring Loss 18.0 22.0 dB

6Agere Systems Inc.

Preliminary Data Sheet

F ebruary 200 0

Er bi um- D oped Fiber Amplifi e r

1725-Type Gain Block

Fiber Scheme

Table 4. Fiber Scheme

Fiber Color Description Connector Length

(inches)

Blue EDFA Input Port SC/PC 32 +1.5/–1.0

Orange Outpu t to Preamp-stage Port (input to interstage) SC/PC 32 +1.5/–1.0

Green Input to Booster-stage Port (output from interstage) SC/PC 32 +1.5/–1.0

Red EDFA Output Port SC/PC 32 +1.5/–1.0

Black Input M oni tor Port SC/PC 32 +1.5/–1.0

Gray Preamp-stage Output Monitor Port SC/PC 32 +1.5/–1.0

Brown Booster-stage Input Monitor Port SC/PC 32 +1 .5/–1.0

Yell ow Additional Pump Power Port SC/APC 36 +1.5/–1.0

White EDFA Output Monitor Port SC/PC 32 +1.5/–1.0

Agere Systems Inc. 7

Pre liminary Data Sheet

February 2000 Erbium-Doped Fiber Amplifier

1725-Type Gain Block

Outline Drawings

1725-Type Gain Block E DFA Package

Dimens ions are in inches and (millim eters).

3.622 (92.00)

3.937 (100.00)

3.484 (88.48)

4.921 (125.00)

4.606 (117.00)

2.976 (75.59)

2.520 (64.01)

0.551 (14.00)

1.438 (36.53)

0.994 (25.25)

(EXTERNAL PUMP NOT INCLUDED)

0.750

(19.05)

0.175 ± 0.020

(4.45 ± 0.50)

0.438 (11.13)

1-1053(F)

8Agere Systems Inc.

Preliminary Data Sheet

F ebruary 200 0

Er bi um- D oped Fiber Amplifi e r

1725-Type Gain Block

Ordering Information

Table 5. Ordering Information

Related Product Information

Descri ption Device Code Comcode

Gain Block ED FA 1725-Ty pe TBD

Table 6. Related Product Inform ation

Description Par t Number Document Nu m ber

Opt ical Amplifier Platfo rm, 1724-Type Erbium-Doped Fib er A mpl ifier

(S and V Series ) S1724-Type

V1724-Type DS99-259LWP

Opt ical Amplifier Platfo rm, 1724-Type Erbium-Doped Fib er A mpl ifier

(W Series) W1724-Type DS00-123OPTO

Opt ical Amplifier Platform, 1730-Type Erbium -Doped Fiber Ampli fier 1730-Ty pe DS 99-353LWP

Extended Band (L-Band) 1 735-Ty pe Erbium-Doped F iber Ampl ifier 1735-Ty pe DS00-113OPTO

Interfacing the 1724-Type Microprocessor-Con t rolled Erbium- Doped

Fiber Amplifier via a Serial Communication Por t 1724-Type AP99-020LWP

High-Speed 2.5 Gbits/s Lightwave Receiver 1319-Ty pe DS 97-106LW P

1.5 µm Isolated DFB Laser Module D2500-Ty pe DS98-339LWP

1.3 µm Isolated DFB Laser Module D2300-Ty pe DS97-122LWP

2.5 Gbits/s Lig htwave Receiver with Clock Recove ry 1320-Type DS97-113LWP

Agere Systems Inc. 9

Pre liminary Data Sheet

February 2000 Erbium-Doped Fiber Amplifier

1725-Type Gain Block

Laser Safety Information

Class IIIb Laser Product

FDA/CDRH Class IIIb laser products. All versions of the devi ce are Class IIIb laser products per CDRH, 21 CFR

1040 Laser Safety requi remen ts. All versions are Clas s I IIb laser pr oducts per IEC * 60825-1:1993. The devices

have been certified with the FDA under accession number 9320325.

This product compl ies with 21 CFR 1040.10 and 1040.11.

8.8/125 µm single-mode fiber pigtail with connect or

Wavelength = 1.5 µm

Maximu m powe r = 50 0 mW

Product is not shipped with power supply.

CAUTION: Use of controls, adjustments, and procedures other than those specifie d herein may result in

haza rdous laser radiation exposure.

* IEC is a registered trademark of The International Electrotechnical Commission.

500 mW 1.5 µm

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.

A ll Rig hts Re serv ed

Febr uary 2000

DS99-271LWP-1 (Replaces DS 99-271LWP)

For additional information, contact your Agere Systems Account Manager or the following:

INTERNET: http://www.agere.com

E-MAIL: docmaster@agere.com

N. AMERI CA : Age re Systems Inc., 555 Union Boulevard, Room 30L-1 5P - BA, A llento wn, PA 1810 9- 3286

1-800-372-2447, FAX 61 0- 712- 4106 (In CANADA: 1-800-553-2448, FAX 610-712-410 6)

ASIA : Ager e Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tower 2, The Gateway, Harbour City, Kowloon

Tel. (852) 3129-2000, FAX ( 852) 3129-2020

CHINA: (86) 21-5047-1212 (Shanghai), (86) 10-6522-5566 (Beijing), (86) 755-695-7224 (Shenzhen)

JAP AN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 778-8833, TAIWAN: (886) 2-2725-5858 (Taipei)

EUROPE: Tel. (44) 7000 624624, FAX (44) 1344 488 045