2646CSAT - Agere Systems, Inc. - Datasheet.Live

systems

Preliminary Data

Sheet,

Rev

.

1

a

8e

r

e

August

2002

Two

10

Gbits/s

Lithium

Niobate

Modulators

with

VOA

and

PIN

The

10

Gbits/s

lithium

niobate

modulator

(2646CSAT)

features

two

independent

modulators

in

one

package

.

Features

.

Two

independent

10

Gbits/s

modulators

in

one

package

.

Optical

taps

and

PINs

.

Integrated

optical

attenuators

.

Ti-diffusion

process

.

Single-drive

technology

.

C-

and

L-band

models

.

Slim,

hermetic

package

. Bandwidths

greater

than

8

GHz

. 0

.7

chirp

operation

.

Operational

over

a

temperature

range

of

0 °C

to

70°C

.

43

0

design

for

minimal

electrical

reflections

.

Angled

interfaces

for

minimal

optical

reflections

Benefits

.

Excellent

long-term

bias

stability

.

Internal

polarizers

.

Eliminates

the

need

for

external

components

.

Low

modulation

voltages

Applications

.

Digital

high-speed

telecommunications

:

-

SONET

:

OC-1

through

OCA92

-

SDH

:

STMA6,

STM-64

-

Undersea

communications

.

Internet

data

communications

Description

The

10

Gbits/s

electro-optic

modulator

is

designed

for

long-wavelength,

single-mode

external

amplitude

modulation

applications

.

It

uses

an

integrated

Mach-

Zehnder

configuration

to

convert

single-polarization

CW

light

from

a semiconductor

(DFB)

laser

into

a

time-varying

optical

output

signal

.

Agere

Systems

also

offers

a 10

mW

CW

laser

with

polarization-main-

taining

fiber

(D2525P)

to

use as a source

for

the

modulator

.

The

Ti-diffusion

process

is

a

standard

feature

on

all

Agere

modulator devices

.

The

2646CSAT

consists

of

two

single-drive,

10

Gbits/s

modulators

with

an

atten-

uating

section

and

integrated

PIN

.

Variable

attenua-

tion to

>19

dB

is

achieved through

a do

bias

voltage,

and

the integrated

PIN

aids

in

bias

control

.

The

package

is

hermetic

to

protect

the

LiNb03

die

from

the

environment

.

Novel

processing techniques

nowmake

it

possible

to

achieve 20-year

operation

with

little

drift

in

the

do

bias

point

.

Other

standard

features

include

PANDA-type

polar-

ization-maintaining

fiber

(PMF)

for

the

optical

input

and

standard

single-mode

fiber

on

the

output

.

FC-

type

connectors

are

used

and

keyed

to

the

axis

of

polarization

.

AdLib OCR Evaluation

Two

10

Gbits/s

Lithium Niobate

Modulators

with

VOA

and

PIN

Preliminary

Data

Sheet,

Rev

.

1

August

2002

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

.

Parameter

Symbol

Min

Max

Unit

Storage

Temperature

Tst9

-40

85 °C

Optical

Input

Power

PIN

-

30

mW

RF

Voltage

(peak

to

peak)

VRF

-

10

V

do

Voltage

(RF

input)

VdCRF

-20

20

V

do

Voltage

(attenuator

input)

VdcATT

-25

25

V

Operating

Temperature

I

Top

I

0

I

70

I

°C

Optical/Electrical

Characteristics

Table

1

.

Optical/Electrical

Characteristics

Parameter

Min Typ

Max

Unit

Operating

Wavelength

:

C-band

L-band

15251565

-

-

1565

1620

nm

nm

Insertion

Loss 3

.5

4

.5

6

.5

dB

Extinction

Ratio

at

do 20

27

-

dB

Extinction

Ratio

at

RF

12

- -

dB

S11

Optical

Return

Loss

- -

-35

dB

Bandwidth* 8 10

-

GHz

Drive

Voltage

(VTc)

at

do 2

.8

3

.1

4

.0

V

Drive

Voltage

(VTc)

at

1

GHz

3

.5

4

.1

5

.0

V

Attenuation

Voltage

at-19

dB

15 19 22

V

S11

Electrical

Return

Loss

(0

.13

GHz-5

GHz)

-

-15

-13

dB

S11

Electrical

Return

Loss

(5

GHz-10

G

Hz)

-

-14

-12

dB

S11

Electrical

Return

Loss

(10

GHz-18

GHz)

-

-8 -6 dB

Electrical

Crosstalk

between

Modulators

- -

-30

dB

Integrated

PIN

PIN

Reverse

Bias

- -

5

V

PIN

Responsivity

0

.03

- -

A/W

PIN Dark

Current

at

Room

Temperature

I

-

I

-

I

6

I

nA

"

Bandwidth

stated

is

electrical-optical-electrical

as

determined

by

the

ratio

of

the

received

RF

electrical

power

(at

a

photodiode)

relative

to

the

RF

electrical

power

used

to

drive

the

modulator

.

This

response

is

referenced

to

the

value

at

130

MHz

.

2

Agere

Systems

Inc

.

AdLib OCR Evaluation

Preliminary

Data

Sheet,

Rev

.

1

August

2002

Two

10

Gbits/s

Lithium

Niobate

Modulators

with

VOA

and

PIN

Optical/Electrical

Characteristics

(continued)

1

2

.r

1

"

-

0

.6

O

0

.4

- -

--

0

80

60

1620-----

40

oG

1600

-

-

_ _

_----

_-

_`

`

0

20

1580

wAVELENGrH(n

1560

`~!

`1540`"

``-40

-2o

m)

Figure

1

.

Responsivity

vs

.

Wavelength

and

Temperature

for

a

Nonpackaged

PIN

Agere

Systems

Inc

.

AdLib OCR Evaluation

Two

10

Gbits/s

Lithium Niobate

Modulators

Preliminary

Data

Sheet,

Rev

.

1

with

VOA

and

PIN

August

2002

Outline

Diagrams

Dimensions

are

in

(millimeters)

and

inches

.

2646CSAT

Lithium Niobate

Modulator

[7

.6]

0

.300

GPOTm

CONNECTOR

PIN

1

PIN 4

INPUT

1

1111

-

[16

.21

systems

0

.600

a

*ere

ELECTRO-OPTIC

DEVICE

OUTPUT

2

PIN

4PIN

1

[8

.9]

0

.350

[117

.9]

4

.640

[27

.4]

1

.080

[5

.5]

[2

.6]

0

.215

0

.100

f

(8

.1)

~

0

.320

(101

.6)

4

.00

[27

.6]

1

.088

OUTPUT

1

INPUT

2

.-a-

[1

.61

0

.062

[61

0

.195

(2 .2)

0

.088

(10

.8)

0

.424

#4-40

TAP

(4-PLACES)

Pin

Information

Table 2

.

Pin

Information

Pin

No

.

Description

1

Attenuator

Positive

Lead,

Max

25

V

2

Attenuator

Negative

Lead,

Min

-25

V

3PIN

N-Contact,

Max

5

V,

Reverse

Bias

4

I

PIN

P-Contact

4

Agere

Systems

Inc

.

AdLib OCR Evaluation

Preliminary

Data

Sheet,

Rev

.

1

August

2002

Two

10

Gbits/s

Lithium

Niobate

Modulators

with

VOA

and

PIN

Package

Information

Designed

to

NEBS

(inside

plant)

standards,

the

hermetic

package

design

incorporates

a

laser-sealed

lid

and

sol-

dered

fibers

.

The

minimum

bend

radius

for

the

fiber

is

1

.5

in

.

Table

3

.

Package

Information

Description

Type

Input

Optical

Fiber

PANDA-type

PMF

Output

Optical

Fiber

Standard

single-mode

Fiber

Connector

FC

Fiber

Length

1

.25

m

min

RF

Connector

GPO

Package

Dimensions

I

See

Outline

Drawing,

page

4

.

Ordering

Information

Table

4

.

Device

Information

Part

Number

Comcode

2646CSAT

I

700007936

GPO

is

a trademark

of

Gilbert

Engineering

.

For

additional

information,

contact your

Agere

Systems

Account

Manager

orthe

following

:

INTERNET

:

http

://www

.agere

.com

E-MAIL

:

docmaster@agere

.com

N

.

AMERICA

:

Agere

Systems

Inc

.,

555

Union

Boulevard,

Room

30L-15P-BA,

Allentown,

PA

18109-3286

1-800-372-2447,

FAX

610-712-4106

(In

CANADA

:

1-800-553-2448,

FAX

610-712-4106)

ASIA

:

Agere

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)

755-25881122

(Shenzhen)

JAPAN

:

(81)

3-5421-1600

(Tokyo),

KOREA

:

(82)

2-767-1850

(Seoul),

SINGAPORE

:

(65)

6778-8833,

TAIWAN

:

(886)

2-2725-5858

(Taipei)

EUROPE

:

Tel

.

(44)

7000

624624,

FAX

(44)

1344

488045

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

.

Agere,

Agere

Systems, and

the

Agere

logo

are

trademarks

of

Agere

Systems

Inc

.

Copyright

©

2002

Agere

Systems

Inc

.

All

Rights

Reserved

s

y

s

tems

August

2002

a

'ere

DS02-296OCN-1

(Replaces

DS02-296OCN)

8

AdLib OCR Evaluation