LEONI eol 1x2, eol 1x12, eol 1x4, eol 2x2, eol 1x8 Operation Manual

REV 07a / 01_ 2012

1

Fiber optic Switch

eol 1x2 •••• 1x4 •••• 2x2

eol 1x8 •••• 1x12 •••• 1x16

OPERATION MANUAL

REV 07a / 01_ 2012

2

CONTENTS

Product Specification

• Features / Applications / Technology …………………………………. 3

• Optical Characteristics …………………………………. 4

• Electrical & Environmental Characteristics …………………………………. 4

• Performance Curves …………………………………. 5

Switch Operation

• Pin Configuration ………………………………………. 6

• Serial Interface ………………………………………. 9

• Parallel Interface ………………………………………. 10

• I 2 C Interface ………………………………………. 12

• Device Housing / Mounting ………………………………………. 14

Handling Instructions

• Handling of Fibers ………………………………………… 15

• Cleaning & Mating of Connectors ………………………………………… 15

Any information established by manufacturer is believed to be accurate and reliable. However, no responsibility is assumed by
manufacturer for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of manufacturer.

REV 07a / 01_ 2012

3

FUNCTIONAL BLOCK DIAGRAM

FEATURES

• excellent repeatability

• ultra low back reflection

• low insertion loss and PDL

• high optical isolation

• broad spectral range

• polarization maintaining option

• short switching time

• small dimensions

APPLICATIONS

• testing and measurement

• fiber optic sensing

• add/ drop multiplex system

• network fault protection

• signal protection

• laser scanning microscopy

• fiber bragg sensors

• multi channel optical power monitoring

TECHNOLOGY

eol

series switches were developed to serve for

the most demanding applications in testing and

measurement. Its optomechanical design

(MOEMS) ensures an excellent optical

performance combined with short switching time

due to refractive microoptical componen

ts and

industry proofed high resonant actuators. The

small package size and unilateral fiber location

simplify the switch accomodation on printed

circuit boards. The implemented microcontroller

provides versatility in interface programming and

controlling.

opto

-

mechanical

system

actuators

MICRO-

CONTROLLER

RS232

I2C

parallel

interface

electronic interfaces and controller

VCC GND

RxD

TxD

D0

D1

Strobe

SDA

SCL

Ch1

Input

Ch4

Ch3

Ch2

REV 07a / 01_ 2012

4

OPTICAL CHARACTERISTICS

parameter

unit

test conditions / comments

insertion loss 0.7 dB

typ.

@ 1.55µm and 1,31µm

1.0 dB

max.

1.4 dB

max.

@ 0.80µm and 0,65µm

2.0 dB max @ 0.46µm … 0.60 µm

back reflection <-65 dB @ 1,55µm

crosstalk <-55 dB

repeatabiltiy 0.005 dB

5000 cycles @ 1Hz, constant
temperature

standard wavelength range 400…670 nm

600...850 nm
other wavelengths on request

900…1200 nm

1260 - 1360
1480 - 1650

nm

polarization depending loss < 0.1 dB

switching time
switching frequency

≤2
50

ms
Hz

max.

reliability > 108 cycles

power consumption < 300 mW

ELECTRICAL

CHARACTERISTICS

parameter

unit test conditions / comments

operating voltage 5 V

switching current 50 mA

min.

switching frequency = 0Hz

100 mA

typ.

300 mA max. switching frequency = 50Hz

ENVIRONMENTAL CHARACTERISTICS

parameter

unit test conditions/comments

storage temperature -40 to +80 °C

operating temperature 0 to +60 °C

vibration stability Up to 10 g

no influence on optical
characteristics

REV 07a / 01_ 2012

5

PERFORMANCE CURVES

-0,003

-0,002

-0,001

0

0,001

0,002

0,003

0 100 200 300 400 500 600 700 800

CYCLES

VARIATION OF THE IL

[dB]

REPEATABILITY

VARIATION OF IL

[dB]

Cycles

SWITCHING CHARACTERISTICS

THERMAL CHARACTERI

STICS

-0,15

-0,0 5

0,05

0,15

0 15 30 45 60

TEMPERATURE (°C)

INSERTION LOSS (dB)