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8/2/2019 DI IO-Technology A

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JENOPTIK I Optical Systems

Integrated-optical devices - made by Jenoptik


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DI_IO-Technology_kurz.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 2

Integrated-optical devices - made by JenoptikLight modulators

Integrated-optical modulators Liquid crystal spatial modulators


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Integrated-optical devices - made by JenoptikContent

Introduction: Integrated Optics

First main application:Optical telecommunication

Second main application:rotation sensor

New challenges

Modulators of JENOPTIK Laser,

Optik, Systeme GmbH


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Integrated-optical devices - made by JenoptikIntroduction: Integrated optics

Optics of guided light waves in planar substrates

Fiber optics:cylindrical waveguideCore diameter 3-9 m

Integrated optics:Waveguide in a planar substrateWidth / depth 3-9 m

Monomode / Multimode

various basic structures various materials and manufacturing processes

Core

Cladding

waveguide

substrate

Light transmission



Integrated-optical devices - made by JenoptikFirst main application: Optical telecommunication

wavelength: about 1550 nmBitrate: 10-40 Gbit/s

Datasource

sender modulator multiplexer fiber amplifier coupler

switchWavelengthconverter

demultiplexerreceiverdecoderData drain

Channel number: ITU-grid 100 GHz (0,8 nm)Optical power: some milliwatts per channel



Amplitude modulatorPhase modulator

Linear electrooptic effect in LiNbO3 n n r E z z z= 1

2

3

33

= L

n rU

gz

3

33 P PU

Umax= +

1

2

1

2cos

Ug

n r Lz

= 333

First main application: Optical telecommunicationElectrooptic modulation



wavelength app. 1550 nm

some milliwatts

10 40 Gbit/s

extinction < 100:1

First main application: Optical telecommunicationElectrooptic modulation



Integrated-optical devices - made by JenoptikSecond main application: rotation sensor (optical gyroscope)

Sagnac-Effect

=

8

0

A

c =

2

0

l d

c

example: 0 = 850 nm, l = 1000 m, = 1 /h = 1,2 x 10-5 rad

Phase shift:

Measure: ( )I I= +02

1 cos

Largest signal change at = /2

Phase modulation corresponding to light round trip

accuracy: 0,05/h

Fiber coil

detector laser



Integrated-optical devices - made by JenoptikNew challenges

DLR

Intersatellite communication

Phase modulator;

= 1064 nm;

10 GHz; 0,5 W

Material processing

Amplitude modulator;fs

= 1064 nm;

100 W; 100 MHz

Laserzentrum Hannover

High power Short pulses



Integrated-optical devices - made by JenoptikNew challenges

LDT

Printing technology

Amplitude modulator; RGB

100 MHz;

< 5 mW

Short wavelengths


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Phase modulator

Modulated Y-branch

Amplitude modulator

Focus: Non-Standard wavelengths, comparably high power,customized design

Modulators of JENOPTIK Laser, Optik, Systeme GmbH


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Modulators of JENOPTIK Laser, Optik, Systeme GmbHAmplitude modulator

wavelength [nm] 532 635 830 1064 1300 1550Other wavelengths on request

Spectral bandwidth [nm] 10 20 40 60 100 100

Insertion loss, typical [dB] 7 7 6 5 5 5

Extinction, typical 500:1 800:1 800:1 1000:1 1000:1 1000:1

Frequency range 100 Hz 1 GHz100 Hz 5 GHz

Optical interface, inputStandard Polarization maintaining singlemode fiberFiber termination Bare fiber, FC/PC- or FC/APC-connector

Optical interface, outputStandard Polarization maintaining singlemode fiberoptional Singlemode- or multimode fiberFiber termination Bare fiber, FC/PC- or FC/APC-connector

Half wave voltage [V] 1 GHz 2 3 4 5 8 85 GHz 2 3 3 3 5 5

dimensions 96 mm x 18.8 mm x 10 mm(housing LxWxH, without fiber throughput)

Technical data


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Modulators of JENOPTIK Laser, Optik, Systeme GmbHPhase modulator

wavelength [nm] 532 635 830 1064 1300 1550Other wavelengths on request

Spectral bandwidth [nm] 15 20 40 60 100 100

Insertion loss, typical [dB] 7 6 5 4 4 3

Frequency range 100 Hz 1 GHz100 Hz 5 GHz

Optical interface, inputStandard Polarization maintaining singlemode fiberFiber termination Bare fiber, FC/PC- or FC/APC-connector

Optical interface, outputStandard Polarization maintaining singlemode fiber

optional Singlemode- or multimode fiberFiber termination Bare fiber, FC/PC- or FC/APC-connector

Half wave voltage [V] 1 GHz 4 6 8 10 16 165 GHz 4 6 6 6 10 10

dimensions 96 mm x 18.8 mm x 10 mm

(housing LxWxH, without fiber throughput)

Technical data


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LiNbO3 - crystal

Modulators of JENOPTIK Laser, Optik, Systeme GmbHTechnology


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LiNbO3 - crystalMetal mask patterning


M d l f JENOPTIK L O ik S G bH


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Ion exchange


M d l t f JENOPTIK L O tik S t G bH


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Ion exchange

Metal mask etching




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Ion exchange

Metal mask etching

Electrode patterning




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Ion exchange

Metal mask etching

Electrode patterningGalvanic gold deposition


Modulators of JENOPTIK Laser Optik Systeme GmbH


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SawingPolishing




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Fiber couplingElectrical bonding

Packaging




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Modulators of JENOPTIK Laser, Optik, Systeme GmbHApplication: Generation of short pulses

Rise time < 500 ps, extinction > 1000:1

-0.5

0

0.5

1.0

1.5

2.0

2.5

-30 -20 -10 0 10 20 30 40-0.005

0

0.005

0.010

0.015

0.020

0.025

optical signaltrigger signal

time (ns)

volta

ge(V)

opticalp

ower(a.u.)



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Modulators of JENOPTIK Laser, Optik, Systeme GmbHApplication: Pulse shaping

Rise time < 500 ps, extinction > 1000:1

-0.2

0

0.2

0.4

0.6

0.8

1.0

1.2

-400 -200 0 200 400 600 800

time (ns)

opticalp

ower(a.u.)



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Modulators of JENOPTIK Laser, Optik, Systeme GmbHApplication: Pulse picker

150 fs-Pulses, = 1064 nm, 76 MHz, 100 mW avg. Rise time < 5 ns, extinction 1000:1

0

10

1

0 200 400 600 800 1000 1200

Laser pulse chainEvery 47th pulse is transmitted

time (ns)

opticalp

ower(a.u.)



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Modulators of JENOPTIK Laser, Optik, Systeme GmbHApplication: Sensors

Potential free electric field sensor

mV MV, dc 5 GHz, 1000:1

Modulators of JENOPTIK Laser, Optik, Systeme GmbH


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Modulators of JENOPTIK Laser, Optik, Systeme GmbHApplication: scanning display technique

Film- and Photo technology

Amplitude modulation, = 473, 532, 670 nm 100 Millions Pixel/Sec. (> 1 GHz Sinus)extinction: 1000:1 Pout < 5 mW

Miniaturized light source

Laser scanning microscope,Measurement techniquePulsed laser sources IR & VIS

Paper feed Photo paper

Line deflection

Beam combination

Modulation

LasersRed green blue


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