offering reliable and industry-proven fabrication services of validated photonic components for wafer-level testing and free-space coupling
operational since 2017, since 2023 as Keystone Photonics
product range
custom optics
- …large variety of standard models
- all shown designs are validated by performance and reliability test and
used for a large variety of customer’s application
fiber array
• fiber arrays tailored for wafer and die-level testing
• with lid, no lid, narrow etc
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large quantity of 8ch fiber arrays with 127 µm and 250 µm on stock. Fiber arrays with up to 64 ch on stock |
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lensed fiber arrays for both die and wafer level testing of angled facets (e.g. InP laser, SOA, SLED) |
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any pitch, fiber type, mixed fiber arrays, PM fiber arrays, cryo, UV, VIS NIR fiber arrays available upon request every chanel of a fiber array can be equipped with a different optics |
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range of 3D-printed marker for top- and bottom view camera alignment suitable for surface and trench coupling |
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range of 3D-printed marker for top- and bottom view camera alignment suitable for surface and trench coupling |
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photonic integrated circuits (PIC) can be used as a means for pitch equalization or pitch reduction to 20 µm such probe heads allow testing of ultra-low pitch photonic integrated circuits both using grating and edge-coupled devices the PIC may be equipped with 3D-printed mirror optics or a straight lens
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custom fiber array mounting
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test & validation
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optional mode-field and transmission measurements |
packaging
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application areas
business segments
design services
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standard products
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custom products
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request form for standard products
standard corpus types (µm)
corpus type A
corpus type B
corpus type C
corpus type D
please select features
optional marker structure needed? – take your pick!
- all calculations were done with Gaussian approximation
- all MFD are specified at 1/e² intensity level
- MFDs correspond to UHNA4 and SMF28 fiber (except for smallest MFD)
- WD is measured from apex of lens to waist
- measured coupling efficiency is pending, estimated coupling is 0.5 dB for large MFD,
1 dB for smallest MFD, TIR surface has 0.1-0.3 dB penalty
information about data protection you can find in our privacy section
the terms you can find here
our technology in a nutshell
optical wafer-level testing
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our jobs – join us at Keystone
offering reliable and industry-proven fabrication services of validated photonic components using additive microfabrication