SYSTEM SOLUTION FOR SPECIFIC APPLICATIONS / MASS PRODUCTION INSPECTION OF POLYMER WAVEGUIDESynos

OPTICAL CONTINUITY TESTER
Optical method insertion loss manual measurement system for optical waveguide modules, using optical measurement optics M-Scope type M

Optical Continuity Tester, high speed continuity tester for polymer optical waveguide, iscontinuity inspection system with high speed and accuracy, to test continuity on each channel ofmulti-channel polymer optical waveguide and related module. Measuring light batch irradiationand image processing method make it possible to measure continuity of multi-channel polymer
optical waveguide at one time. This technology realizes high-speed optical continuity test forpolymer optical waveguide for OPCB substrate at mass production.
【Features】○Alignmentless high-speed optical continuity inspection○High accuracy by dedicated large N.A. measurement optics and high resolution CMOS detector○Dedicated high speed image processing software developed for Optical Continuity Tester●Extract, process, and judge only guided wave propagation light of optical waveguide●Applicable to waveguide external shape measurement such as core pitch, core position, etc.
●Various measurement mode such as defocus measurement mode, etc.
●Supports automation and eﬃciency of inspection【Automatic sample loader/unloader mechanism (option for automation support)
Preparation work for individual pieces sample measurement is greatly reduced,
and inspection eﬃciency and throughput can be greatly improved.
【System control/data analysis software for OCT】
High-speed measurement and judgment of the conduction
state of each channel of the optical waveguide are performedby the original image processing analysis.

*Automatic sample loader/unloader
mechanismWide area uniform
light irradiation unit

*Sample transfer robot and sample tray
for individual pieces sample

Hi-resolution CMOS
detector ISA071

Automatic loader/unlordersystem (option)

Large N.A.
measurement optics
Stage system forlight irradiation unit

Stage system formeasurement optic

DUT

Sampleadsorption
Sample tray
Sample alignment
sensorStage system forsample adjustment

Light irradiation unit
controller

PC monitor
for operation

Motorized stagecontrol

Coaxial epi
illumination

Automatic loader/unloader controller unit

Stage system controller

System controllerunit
PC for system control
Vibration isolation table with shield box☞Technical information【Measurement methodof optical continuity tester】
Input side

Output sideDUT(opticalwaveguide)

Wide area uniform
light irradiation unit

Measurement image

Continuity test of polymer optical waveguide(The ﬁgure shows the upper incidence/upper emission typewith built-in 45 ° mirror.)https://www.synos.jp【Optical continuity tester basic speciﬁcation ofmain part (light irradiation unit, detection system)】○Wide area uniform light irradiation unit
●Output N.A.:
0.57●Irradiation size:
φ4mm (@gap 5mm)
●Uniformity in irradiation surface: ±2%●Center wavelength of light source: 850nm(FWHM:±40nm）●Maximum output light power: approx. 15ｍW
●Output light stability: ±1％○Dedicated large N.A. measurement optics●Detection N.A.:
0.4●Optical magniﬁcation: 5× (Objective lens 20×)
●Field of view:
1.28mm×0.96mm○Detector (high resolution CMOS detector ISA071)●Total pixels:
2048×1536 pixels（approx. 3.2M pixels)●Pixels pitch:
3.45×3.45μm●Sensor size:
1/1.8 inch
●Gradation:12bit*We will propose system with various conﬁgurations and speciﬁcations dependingon the measurement sample, speciﬁcations, operating method, and budget.

In OPCB substrate, light emitting and receiving devices for transmission and reception
are mounted on a substrate on which optical waveguide is formed, and signal transmission
is performed through conversion of electric-optical-electric signal.
Conventionally, to test the continuity of optical waveguides, it was common to align theoptical ﬁber at the optical waveguide input and output ends, measure the insertion loss ofthe optical waveguide for each channel, and judge the continuity. However, this method
required long time for testing and not suitable for mass production inspection.
Optical continuity tester is the system intended for mass production high-speed
continuity inspection of polymer optical waveguides for OPCB substrate.
●Irradiate highly stable and uniform measurement light onto the optical waveguides ofmultiple channels at once.
●Large N.A. detection optics and high-speed image processing are combined to collectively
process and judge the continuity of multiple channels.
With the above method, we have achieved alignmentless method and highly accurate
high-speed continuity inspection of polymer optical waveguides.

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