V1724CHBA - Agere Systems, Inc.

Data Sheet

July 1999

Optical Amplifier Platform, 1724-Type

Erbium-Doped Fiber Amplifier (S and V Series)

Designed for use in single-channel or video applications, the

standard 1724-Type EDFA incorporates a DB-25 connector

and a microcontroller with TTL compatible alarm monitoring.

Features

■High saturation output power, >22 dBm

■Low power consumption, <12 W @ 45 °C

■Low noise

■Single 5 V operation

■Wide input signal bandwidth

■Wide operating temperature range, 0 °Cto65°C

■Optical input and output taps

■Isolated input and output

■Programmable input and output

■Connectorized single-mode fiber pigtail

■Standard serial communication channels

Applications

■Designed for a variety of applications:

— S Series: single channel

— V Series: video

■Booster/power amplifier

■Line amplifier

■Preamplifier

Description

The 1724-Type Erbium-Doped Fiber Amplifier

(EDFA) has been designed for use in a variety of

applications and is available in application-specific

versions:

■S Series for single-channel, preamplifier applica-

tions (see Table 4, page 6, for performance specifi-

cations)

— High gain

— Low noise figure

■V Series for video, analog, or booster applications

(see Table 5, page 6, for performance specifica-

tions)

— Supports a wide range of output powers

— Low noise figure

— Low power dissipation

— Adjustable output power

22 Agere Systems Inc.

Data Sheet

July 1999

Erbium-Doped Fiber Amplifier (S and V Series)

Optical Amplifier Platform, 1724-Type

Description (continued)

The versatile 1724-Type EDFA operates over a wide

temperature range, exhibits extremely low power dissi-

pation, and offers a variety of alarms and monitors.

Optimum performance and system stability are sup-

ported through the use of optical isolation at the input

and output. Optical input and output are through single-

mode fiber pigtails terminated with optical connectors.

The EDFA incorporates optical input and output taps

that are monitored via an integral microcontroller. Sig-

nificant performance benefits are achieved with the

microcontroller, which stabilizes the temperature of the

pumps and maintains constant optical output power.

Contact your Agere Systems Inc. Account Manager to

discuss electrical or optical connector options not listed

in the Ordering Information section.

Standard Features

The standard 1724-Type EDFA incorporates the optical

architecture illustrated in Figure 1. The standard fea-

tures include:

■Exceptional performance benefits with the integral

microcontroller, which precisely controls the output

power and allows for changes to power settings as

necessary.

■Single 5 V power supply eliminates the need for dual

voltage source circuits.

■DB-25 electrical connector allows for easy electrical

connectivity.

■Optical input tap enables input monitoring and con-

trol.

■Optical output tap enables precise output monitoring

and control and, when used in conjunction with the

microcontroller, typically provides 0.2 dB of output

power stability over temperature and wavelength.

■SC/PC optical connector

■Low power dissipation

■Alarms:

— Loss of input power alarm

— Loss of output power alarm

— Pump bias alarm (>95% of EOL value)

— Pump temperature alarm (TL>35°C)

— EDFA temperature alarm (TC>60°C)

■Advanced microprocessor design requires minimal

engineering for a shelf-level product.

■Standard mechanical outline includes metric screws

and fiber outputs (using SC/PC optical connectors)

at 180 degrees relative to a DB25 electrical connec-

tor. The standard product does not include a heat

sink.

TTL-Compatible Alarm Outputs

Loss of Input Power Alarm

If the input power is more than 2 dBm below the mini-

mum PIN, the loss of input power alarm (pin 19) will

activate (TTL-logic 1).

Loss of Output Power Alarm

If the output power decreases by more than 2 dB from

its beginning-of-life value, the loss of output power

alarm (pin 8) will activate (TTL-logic 1).

Pumps Temperature Alarm

If the laser temperature for the pump(s) exceeds 35 °C,

the pump temperature alarm (pin 10) will activate (TTL-

logic 1).

PumpsBiasAlarm

If the bias current for the pump(s) exceeds 95% of its

EOL value, the pump bias alarm (pin 9) will activate

(TTL-logic 1).

EDFA Temperature Alarm

If the case temperature exceeds 60 °C, then the

EDFA temperature alarm (pin 7) will activate (TTL-

logic 1).

Optional Features

Other feature and package options for the 1724-Type

EDFA include:

■Alternative optical connectors

■Integral heat sink

Agere Systems Inc. 3

Data Sheet

July 1999 Erbium-Doped Fiber Amplifier (S and V Series)

Optical Amplifier Platform, 1724-Type

Block Diagram

Figure 1. 1724-Type EDFA Block Diagram

Pin Information

1. Do not connect to reserved pins.

2. Normal = TTL low, alarm = TTL high if the output power falls 2 dB below the minimum value.

3. Normal = TTL low, alarm = TTL high if pump bias exceeds 95% of its end-of-life value.

4. Normal = TTL low, alarm = TTL high if pump temperature exceeds 35 °C.

5. The EDFA is equipped with an optical transient suppression feature when this pin is tied to GND. The EDFA will turn all pumps off, if the

input power is too low. Tying this pin to 5 V will disable this feature; however, damage to the optical connectors and components may occur

if the amplifier is turned on without the presence of an optical signal.

6. Normal = TTL low, alarm = TTL high if input power is less than 2 dB below minimum PIN.

7. Amplifier enable (all pumps are on) = TTL low, amplifier disable (all pumps are off) = TTL high.

Table 1. Pin Descriptions for a Microcontrolled (Full) Amplifier

Pin Description Pin Description

1 5.0 V (±0.25 V) 14 GND

2 5.0 V (±0.25 V) 15 GND

3 5.0 V (±0.25 V) 16 GND

4 5.0 V (±0.25 V) 17 GND

5 Reserved118 RS-232 OUT (TTL)

6 Reserved119 Loss of Input Power Alarm6

7 EDFA Temperature Alarm 20 Reserved1

8 Loss of Output Power Alarm221 Amplifier Disable Input7

9 Pumps Bias Alarm322 RS-232 IN (TTL)

10 Pumps Temperature Alarm423 Reserved1

11 EDFA Shutdown Override524 5.0 V (±0.25 V)

12 5.0 V (±0.25 V) 25 GND

13 GND — —

INPUT TAP OPTICAL GAIN OUTPUT TAP

PD #2

OUTPUT POWER

MONITOR

MICROCONTROLLER

PD #1

INPUT POWER

MONITOR

OPTICAL

INPUT

SIGNAL

OPTICAL

OUTPUT

SIGNAL

1-904 (C)

4Agere Systems Inc.

Data Sheet

July 1999

Erbium-Doped Fiber Amplifier (S and V Series)

Optical Amplifier Platform, 1724-Type

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 Characteristics

Table 2. Power Supply

* Typical operating characteristics: VPS1 =5.0V,TC=35°C.

Parameter Symbol Min Typ Max Unit

Storage Temperature Tstg –40 20 70 °C

Operating Case Temperature TC03565 °C

Absolute Humidity — — — 0.024 lbs. H2O/lbs. dry air

Parameter Symbol Min Typ*Max Unit

dc Power Supply Voltage VPS1 4.75 5.0 5.25 V

Power Supply Current

(beginning of life):

ð19 dBm

ð22 dBm IPS1

IPS1 —

—1.0

2.4 —

—A

Power Supply Current

(end of life):

ð19 dBm

ð22 dBm IPS1

IPS1 —

——

—1.9

3.8 A

Electrical Power Consumption

(beginning of life):

ð19 dBm

ð22 dBm —

——

—5.0

12.0 —

—W

Electrical Power Consumption

(end of life):

ð19 dBm

ð22 dBm —

——

—10.0

20.0 W

Agere Systems Inc. 5

Data Sheet

July 1999 Erbium-Doped Fiber Amplifier (S and V Series)

Optical Amplifier Platform, 1724-Type

Electrical Characteristics (continued)

Table 3. TTL Inputs/Outputs

Under normal operating conditions, the various alarm outputs will be TTL level low. If the corresponding parameter

is outside a predesignated range, the associated alarms will become TTL level high.

Parameter Symbol Min Typ Max Unit

Input Voltage:

High

Low VIH

VIL 2

——

0.8 V

Output Voltage:

High

Low VOH

VOL 2.4

0—

0.1 —

0.4 V

Input Current:

High

Low IIH

IIL —

——

—–1

1µA

µA

Output Current:

High

Low IOH

IOL —

——

—–4

20 mA

µA

6Agere Systems Inc.

Data Sheet

July 1999

Erbium-Doped Fiber Amplifier (S and V Series)

Optical Amplifier Platform, 1724-Type

Optical Characteristics

Table 4. Performance Specifications for S Series

Parameter Symbol Min Typ Max Unit

Signal Wavelength Range λL1530 — 1560 nm

Measurement Wavelength λM— 1550 — nm

Input Signal Power:

Preamp—S1724A-Type

Booster/In Line—S1724B/C/D-Types PIL

PIL –30

–6.0 —

——

—dBm

dBm

Gain (PIL =–30dBm):

Preamp—S1724A-Type G 30 — — dB

Peak Output Power (TC= 35 °C; over λM):

Booster/In Line—S1724B-Type

—S1724C-Type

—S1724D-Type

—

dBm

Noise Figure:

Preamp—S1724A-Type (PIL =–30dBm;λM)

Booster/In Line—S1724B/C/D-Types (PIL =

–6.0 dBm; λM)

NF —

——

—5.0

5.5 dB

Return Loss RL — — –40 dB

Output Power Stability (over temperature, at a

constant input power) ∆PO— ±0.2 ±0.5 dB

Table 5. Performance Specifications for V Series

Parameter Symbol Min Typ Max Unit

Signal Wavelength Range λL1540 — 1560 nm

Measurement Wavelength λM— 1550 — nm

Input Signal Power PIL 0 — 10 dBm

Peak Output Power (at λMand TC=35°C):

V1724B-Type

V1724C-Type

V1724D-Type

V1724E-Type

—

dBm

Noise Figure (PIL =0dBm,λM) NF — 4.75 5.5 dB

Return Loss RL — — –40 dB

Composite Second Order CSO — <–70 — dBc

Composite Third Beat CTB — <–70 — dBc

Output Power Stability (over temperature and input

power variations) ∆PO— ±0.2 ±0.5 dB

Agere Systems Inc. 7

Data Sheet

July 1999 Erbium-Doped Fiber Amplifier (S and V Series)

Optical Amplifier Platform, 1724-Type

Outline Drawings

1724-Type EDFA Package*

Dimensions are in inches and (millimeters).

* B version shown; see coding scheme in Table 6, Ordering Information.

0.44

(11.2)

DB 25

CONNECTOR

MALE

ESD

LABEL

PIN 1

0.12

4.660

0.41

5.074

MOUNTING HOLES

DANGER

LABELS AS

0.90

(22.9)

3.10

(78.7)

5.90

(149.9)

HEATSINK MOUNTING HOLES

M3 x 0.5, 4.5 mm DEEP

5PLACES

0.165

(4.19)

4.57

(116.08)

4.90

(124.5)

2.285

(58.04)

5.570

(141.48)

3.795

(96.39)

0.17

(4.2)

0.76

(19.3)

0.83

(21.1)

0.03

(0.8)

INFORMATION LABEL

(118.36)

LABEL

(10.4)

(128.88)

(3.0)

M3 x 0.5, 5 mm DEEP

4PLACES

REQUIRED

1-997(C)

8Agere Systems Inc.

Data Sheet

July 1999

Erbium-Doped Fiber Amplifier (S and V Series)

Optical Amplifier Platform, 1724-Type

Outline Drawings (continued)

Optional Package Configuration: 1724-Type EDFA Package with Integral Heat Sink*

Dimensions are in inches and (millimeters).

* F version shown; see coding scheme in Table 6, Ordering Information.

0.123

(3.12)

0.38

(9.5)

CUSTOMER

LABEL LASER WARNING

LABEL

1.500

(38.10)

0.033

(0.84)

4.660

(118.36)

0.41

(10.5)

5.90

(149.9)

5.074

(128.88)

3.94

(100.1)

0.98

(24.8) MOUNTING HOLES

M3 x 0.5, 5 mm DEEP

AS NOTED BY DIMPLE

4PLACES

AGERE SYSTEMS

Breinigsville, Pennsylvania

USA

DATE MANUFACTURED:

NOVEMBER 1997

0.76

(19.3)

1.850

(46.99)

1.53

(38.9)

4.91

(124.7)

0.44

(11.2)

DB 25

CONNECTOR

(MALE)

PIN 1

DANGER

1-998(C)

Agere Systems Inc. 9

Data Sheet

July 1999 Erbium-Doped Fiber Amplifier (S and V Series)

Optical Amplifier Platform, 1724-Type

Ordering Information

Table 6. Ordering Information*

* Contact your Account Manager to discuss your requirements. (If you do not know your Account Manager, please call Agere Systems, Opto-

electronicsunit directly at (610) 391-2520.)

Coding Scheme

Example: γ 1724 α β χ δ

γ= 1724 series indicator:

S = single channel

V = video

α = output power indicator:

A < 12.99 dBm

B Š 13 dBm

C Š 16 dBm

D Š 19 dBm

E Š 22 dBm

β= optical connector indicator:

B=SC/PC

D=FC/PC

G = FC/APC

H = SC/APC

χ= housing-type indicator:

B = no heat sink; fibers opposite DB25 connector

D = heat sink; fibers opposite DB25 connector

F = heat sink; fibers 90° from DB25 connector

δ = future use

Device Code Po Connector Heat Sink Comcode

S1724BBBA 13.0 dBm SC/PC No 108321472

S1724BDBA 13.0 dBm FC/PC No 108313719

S1724CBBA 16.0 dBm SC/PC No 108331539

S1724CDBA 16.0 dBm FC/PC No 108313727

S1724DDBA 19.0 dBm FC/PC No 108319088

V1724BBBA 13.0 dBm SC/PC No 108331547

V1724BHBA 13.0 dBm SC/APC No 108468398

V1724CBBA 16.0 dBm SC/PC No 108331554

V1724CGDA 16.0 dBm FC/APC Yes 108363680

V1724CHBA 16.0 dBm SC/APC No 108468406

V1724DBBA 19.0 dBm SC/PC No 108331562

V1724DHBA 19.0 dBm SC/APC No 108351842

V1724EBBA 22.0 dBm SC/PC No 108331984

V1724EHBA 22.0 dBm SC/APC No 108351859

10 Agere Systems Inc.

Data Sheet

July 1999

Erbium-Doped Fiber Amplifier (S and V Series)

Optical Amplifier Platform, 1724-Type