DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 2
Integrated-optical devices - made by JenoptikLight modulators
Integrated-optical modulators Liquid crystal spatial modulators
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 3
Integrated-optical devices - made by JenoptikContent
� Introduction: Integrated Optics
� First main application: Optical telecommunication
� Second main application: rotation sensor
� New challenges
� Modulators of JENOPTIK Optical Systems GmbH
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 4
Integrated-optical devices - made by JenoptikIntroduction: Integrated optics
Optics of guided light waves in planar substrates
Fiber optics:cylindrical waveguideCore diameter 3-9 µm
Integrated optics:Waveguide in a planar substrateWidth / depth 3-9 µm
� Singlemode / Multimode� various basic structures� various materials and manufacturing processes
Core
Cladding
waveguide
substrate
Light transmission
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 5
Integrated-optical devices - made by JenoptikFirst main application: Optical telecommunication
wavelength: about 1550 nmBitrate: 10-40 Gbit/s
Data source
sender modulator multiplexer fiber amplifier coupler
switchWavelengthconverter
demultiplexerreceiverdecoderData drain
Channel number: ITU-grid 100 GHz (0,8 nm)Optical power: some milliwatts per channel
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 6
Amplitude modulatorPhase modulator
Linear electrooptic effect in LiNbO3 ∆n n r Ez z z= − 1
23
33
∆ Γφ πλ
= − Ln r
U
gz3
33 P PU
Umax= +
1
2
1
2cos
ππ
Ug
n r Lzπ
λ= −3
33 Γ
First main application: Optical telecommunicationElectrooptic modulation
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 7
� wavelength app. 1550 nm
� some milliwatts
� 10 – 40 Gbit/s
� extinction < 100:1
First main application: Optical telecommunicationElectrooptic modulation
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 8
Integrated-optical devices - made by JenoptikSecond main application: rotation sensor (optical gyroscope)
ωωωω
Sagnac-Effect
Φ =8
0
πλ
ωA
cΦ =
2
0
πλ ω
l d
c
example: λ0 = 850 nm, l = 1000 m, ω = 1 °/h Φ = 1,2 x 10-5 rad
Phase shift:
Measure: ( )II
= +0
21 cosΦ
Largest signal change at Φ = π/2
Phase modulation corresponding to light round trip
worlds best accuracy: 0,05°/h
Fiber coil
detector laser
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 9
Integrated-optical devices - made by JenoptikNew challenges
DLR
� Phase modulator;
� λ = 1064 nm;
� optical power 0,5 W cw
� 10 GHz
High power
Intersatellite communication
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 10
Laserzentrum Hannover
Short pulses
Integrated-optical devices - made by JenoptikNew challenges
Precision material processing usingfiber-based oscillator-amplifier systems
� Amplitude modulator;
� λ = 1064 nm;
� fs-pulses 100 mW avg, >100 W per pulse pulse shaping from cw: 0,5 W
� 1 GHz
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 11
Integrated-optical devices - made by JenoptikNew challenges
LDT
Short wavelengths
Display and printing technology
� Amplitude modulator;
� RGB;
� 5 mW cw
� 100 MHz
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 12
Phase modulator
Modulated Y-branch
Amplitude modulator
Focus: Non-Standard wavelengths, comparably high power, customized design
Modulators of JENOPTIK Optical Systems GmbH
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 13
Modulators of JENOPTIK Optical Systems GmbH Amplitude modulator
AM532 AM635 AM830 AM1060 AM1550
Wavelength 532 nm 635 nm 830 nm 1060 nm 1550 nmOther wavelengths on request
Spectral bandwidth ±10 nm ±20 nm ±40 nm ±60 nm ±100 nm
Insertion loss, typical 7 dB 7 dB 6 dB 5 dB 5 dB
Extinction, typical 200:1 500:1 800:1 1000:1 1000:1
Minimum optical rise time, typical 1 ns 200 ps 200 ps 200 ps 200 ps
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, typical 2 V 3 V 3 V 3 V 5 V
Maximum optical input power (cw) 10 mW 30 mW 50 mW 300 mW 300 mW
dimensions 96 mm x 19 mm x 10 mm(housing LxWxH, without fiber throughput)
Technical data
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 14
Modulators of JENOPTIK Optical Systems GmbH Phase modulator
PM532 PM635 PM830 PM1060 PM1550
Wavelength 532 nm 635 nm 830 nm 1064 nm 1550 nmOther wavelengths on request
Spectral bandwidth ±15 nm ±20 nm ±40 nm ±60 nm ±100 nm
Insertion loss, typical 7 dB 6 dB 5 dB 4 dB 3 dB
Minimum optical rise time, typical 1 ns 200 ps 200 ps 200 ps 200 ps
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, typical 4 V 6 V 6 V 6 V 10 V
Maximum optical input power (cw) 10 mW 30 mW 50 mW 300 mW 300 mW
dimensions 96 mm x 19 mm x 10 mm(housing LxWxH, without fiber throughput)
Technical data
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 15
Modulators of JENOPTIK Optical Systems GmbHTechnology
- waveguide patterning- ion exchange in LiNbO3
- electrode patterning- sawing, polishing- fiber coupling- packaging
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 16
Modulators of JENOPTIK Optical Systems GmbH Application: 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)
optic
al p
ower
(a.
u.)
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 17
Modulators of JENOPTIK Optical Systems GmbH Application: 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)
optic
al p
ower
(a.
u.)
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 1818
Modulators of JENOPTIK Optical Systems GmbH Application: Pulse picker
150 fs-Pulses, λ = 1064 nm, 76 MHz, 100 mW avg. Rise time < 5 ns, extinction 1000:1
0
1
0
1
0 200 400 600 800 1000 1200
Laser pulse chainEvery 47th pulse is transmitted
time (ns)
optic
al p
ower
(a.
u.)
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 19
Modulators of JENOPTIK Optical Systems GmbHApplication: Sensors
Potential free electric field sensor
mV … MV, dc … 5 GHz, 1000:1
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 20
Modulators of JENOPTIK Optical Systems GmbHApplication: scanning display technique
Film- and Photo technology
Amplitude modulation, λ = 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
ModulationLasersRed green blue
DI_IO-Technology 6-12-short.ppt 2006-06-16 Jenoptik Laser, Optik, Systeme GmbH 21
Modulators of JENOPTIK Optical Systems GmbHApplication: Phase modulation
Interferometric Measurementtechnique� sweeping of reference wave� vibrometer, anemometer� coherence tomography
Fine tuning of laser lines� atomic cooling – example 637 nm,
795 nm … 5 GHz
Optical free space communication� space-communication – 1064 nm� 500 mW, 5 GHz
Laser
IOC
Messobjekt
© Dantec
Kamera
Auswerteelektronik
objectcamera
laser
Control unit