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Fiber Positioning and Performance Relevant Parameters (1)

Standard Accuracy Level

High Accuracy Level

V-Groove Grid Failure in X Direction (2) (4)

< 500 nm

< 250 nm

V-Groove Grid Failure in Y Direction (3) (4)

< 750 nm

< 350 nm

V-Groove Line Positioning Accuracy (4)

± 0.010 mm

V-Groove Pitch Tolerance in X Direction (4)

± 500 nm

± 200 nm

Sidewall Verticality (5)

90 ± 0.3°

V-Groove Surface Roughness (Ra)

< 0.2 μm

< 0.02 μm

V-Groove Depth (SAG)

Customized without limitations

V-Groove Angle Size

From 60°, 90° or customized

V-Groove Angle Tolerance

< ± 2°

< ± 1°

V-Groove Pitch Size in X Direction

0.127 mm, 0.250 mm or customized and various on the same product realizable

Product Dimensions and Materials

Length / Width Sizes – Round or Square

up to 300 mm

Length / Width Tolerances

± 0.025 mm

Thickness Tolerance

± 0.050 mm

Step Height (Plateau)

3 0.100 mm

Step Height (Plateau) Tolerance

± 0.020 mm

Number of Channels

From 8, 16, 32 (36), 48, 96, 128 or customized

Surface Quality – V-Grooves Area

5/ E0.1, chipping can be minimized if needed

Surface Quality – Outer Edges

5/ E0.1, chipping can be minimized if needed

Material

Borofloat 33, Fused Silica, S-TIH53, S-BSL7 (and equivalent such as N-BK7), Silicon and other non-toxic optical glasses on request