109036483 - Agere Systems, Inc. - Datasheet.Live

systems

Preliminary Data

Sheet,

Rev

.

1

a

8

e

r

e

August

2002

40

Gbits/s

Lithium

Niobate

Electro-Optic

Modulator

Applications

.

Digital

high-speed

telecommunications

:

-

SONET

OC-768

-

Undersea

communications

.

Internet

data

communications

.

SONET

test

equipment

The

Lithium

Niobate

40

Gbits/s

Modulator

(2625C)

is

a

higher-

speed

addition

to

the

Agere

Systems'

family

of

modulators

that

also

includes

10

Gbits/s

and

20

Gbits/s

versions

.

Features

.

Ti-diffusion

process

.

Dual-drive

technology

.

Thin-film,

50

0

termination

in

package

for

minimal

reflections

.

Low

modulation

voltages

.

Tunable,

zero

chirp

operation

. Angled

interfaces

for

minimal

optical

reflections

. Hermetic

package

. Separate

do

bias

electrode

.

Internal

polarizer

.

Excellent long-term

bias

stability

over a

full

opera-

tional

temperature range

of

0

°C

to

70°C

Description

Representing

the

latest

advancements

in

high-speed

lithium

niobate

technology,

the

40

Gbits/s

electro-

optic

modulator

is

designed

for

long-wavelength,

single-mode,

external

amplitude

modulation

applica-

tions

.

It

uses

an

integrated

Mach-Zehnder

configura-

tion

to

convert

single polarization

CW

light

from a

semiconductor

(DFB)

laser

into

a

time-varying

optical

output

signal

.

Using

the

source

in

the

CW

mode

elim-

inates

the

need

for

demanding,

high-speed

perfor-

mance

from

the

laser

and

reduces

its

cost

.

The

dual-drive

design

inherently

offers

the

capability

to

adjust the

phase

of

the

voltages

on

the

electrodes,

which produces

zero-chirp

modulation

operation

.

AdLib OCR Evaluation

Preliminary

Data

Sheet,

Rev

.

1

40

Gbits/s

Lithium

Niobate

Electro-Optic

Modulator

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

Tstg

-40

85

°C

Optical

Input

Power

at

1

.5

gm

PIN

-

30

mW

Input

Power

to

the

RF

Port*

PRF

-

500

mW

RF

Voltage

(peak

to

peak)

VRF

-

10

V

do

Voltage

(dc

input)

Vdc

-20

20

V

Operating

Temperature

Top

0 70

°C

"

It

is

highly

recommended

not

to

put

any do

voltage

on

the

RF

port

.

Characteristics

Table

1

.

Optical/Electrical

Characteristics

(Tc

= 25

°C)

Parameter Min

T Max

Unit

O

p eratin

g

Wavelen

g

th

1525

-

1620

nm

O

p

tical

Insertion

Loss

- -

6

dB

Extinction

Ratio

at

do

20

- -

dB

Extinction

Ratio

at

RF

12

- -

dB

S11

Optical

Return

Loss

- -

-30

dB

Bandwidth

30

- -

GHz

Drive

Voltage

(VTc)

at

1

GHz

- -

3

V/side

Electrode

Impedance

-

47

-

0

S11

Electrical

Return

Loss

I

-

I

-

I

-10

I

dB

2625C

Characteristic

Curves

-36

0

-mo"-10

m

-15

z

O

V

-20

w

J

L-25

-30

35

-39

a)

m

-42

z

O

n

m

-45

w

O

w

-4V

11

0 10 20 30 40

FREQUENCY

(GHz)

1-1961

(F)

Figure

1

.

Magnitude

of

Electro-Optic

Response

2

-,-,-

--

.--.--

.------------r-r-r-T-

----- --------

-

---------

------------ -----

-

--------

---------- -----

-

---

*-,-,-n---

.--

.------

.----~--~

-~ -~

--

-

-------------

-

---------

----------------------- -

0 5 10

15

20

25 30 35 40

FREQUENCY

(GHz)

1-1962

(F)

Figure

2

.

S11

Electrical

Return

Loss

Agere

Systems

Inc

.

AdLib OCR Evaluation

Preliminary

Data

Sheet,

Rev

.

1

August

2002

40

Gbits/s

Lithium

Niobate

Electro-Optic

Modulator

Outline

Diagram

Dimensions

are

in

inches

and

(millimeters)

.

INPUT

MODULATOR

BIASPINS

i

1

.400

MAX

-

(35

.6)

1

10

AGERE

SYSTEMS

ELECTRO-OPTIC

DEVICE

FC/PC

CONNECTOR

2PLACES

V-CONNECTOR

4

.640 (117

.86)

o

~-

o

XXXX)00(X

o

0.206

(5 .23)

0

.320

(8 .13)

2

.00

(50

.8)

2

.00

(50

.8)

0

.087 (2

.21)

-1

I

IN

I

T

0

.4

25

(10

.8)

L

1

.187

(30

.15)

0

.200

(5.08)

1.242

(31

.55)

L0

.250

MAX

(6 .35)

BEND

LIMITER

2PLACES

1.25

METER

MIN

0

.600

(15

.24)

LOOSE

TUBE

JACKETED

FIBER

2

PLACES

0

.200

(5 .08)

k

-

0

.390

(9 .91)

0

.300

(7 .62)

6X

#4-40

UNC-213

0

.150

(3 .81)

DEEP

MIN

1-1064

(F)g

Agere

Systems

Inc

.

AdLib OCR Evaluation

Preliminary

Data

Sheet,

Rev

.

1

40

Gbits/s

Lithium

Niobate

Electro-Optic

Modulator

August

2002

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 2

.

Package

Information

Description

Type

Input

Optical

Fiber

PANDA-type

PMF

Output

Optical

Fiber

PANDA-type

PMF

Fiber

Connectors

FC

Fiber

Length

1

.5

m

max

RF

Connector

V-type

Package

Dimensions

I

See

Outline

Diagram,

page

3

Ordering

Information

Table 3

.

Device

Information

Part

Number

Comcode

2625C

I

109036483

For

additional

information,

contact your

Agere

Systems

Account

Manager

or

the

following

:

INTERNET

:

http

://www

.ageFe

.com

E-MAIL

:

docmaster@agere

.com

N

.

AMERICA

:

Agere

Systems

Inc

.,

Lehigh

Valley

Central

Campus,

Room

10A-301C,

1110

American

Parkway

NE,

Allentown,

PA

18109-9138

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

488

045

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

DS02-351

OCN-1

(Replaces

DS02-351

OCN)

8

AdLib OCR Evaluation