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Adhesive for optical path coupling

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Feature

  • High-precision, wide-range refractive index control (accuracy: ±0.005, range: 1.456 to 1.567 (@589nm)) is possible
  • Also applicable to solder reflow treatment (260°C)
  • High moisture resistance

Example of use

Optical adhesive used for PLC/fiber bonding

Index-matching optical adhesive

Application example to silicon photonics


Adhesive for optical path coupling Application example of silicon photonics
Connection example of silicon photonics waveguide and fiber array

Characteristic value

model number
[Main component]
viscosity
(mPa・s)
Curing conditions
[irradiation intensity, time]
refractive index
(*1)
Glass-transition temperature
Tg (°C)
Light transmittance %
[1.3um]
Adhesion strength
(kgf/ cm2)
Features
Refractive index adjusted product
(high Tg)
[Epoxy]
(*2)
250~2000 30mW/ cm2
10 minutes
1.458~1.567 140~150 89~90 >100 Adjust refractive index to specified value
Good transparency
Refractive index adjusted product
(Low Tg)
[Epoxy]
200~560 10mW/ cm2 10min 1.458~1.567 40~50 86~90 >100 Adjust refractive index to specified value
Good transparency
GA700H
(high Tg)
[Epoxy] (*2)
280 30mW/ cm2 for 10min 1.458 145 91 >247 Matches the refractive index of quartz glass at λ1.55um
GA700L
(Low Tg)
[Epoxy]
250 10mW/ cm2 10min 1.456 46 94 >154 Matches the refractive index of quartz glass at λ1.55um
AT6001
[Acrylate]
470 10mW/ cm2 10min 1.505 0 91 >99 Compliant with telecodia standards (high temperature and high humidity), flexibility
AT8224
[Acrylate]
145 10mW/ cm2 10min 1.505 115 89 >209 Compatible with Telecodia standard (high temperature and high humidity), high Tg
*1...Sodium D line after curing
*2...This product contains "Non-medicinal deleterious substances" (Please refer to SDS (MSDS) for handling)

The characteristic values in the table are sample measurement values, not guaranteed values.

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