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Description

T-940-C

T-966-C

T-940-L

T-940-CL

Units

Groove Density

940.07

966.2

940.07

940.07

grooves/mm

Operational Wavelength Range

1526-1566 (C band)

1526-1566  (C band)

1570-1610  (L band)

1526-1610 (C+L band)

nm

Optimum Incidence Angle1

46.5

48.3

48.4

47.5

degrees

Groove Density Uniformity

0.001

0.001

0.001

0.001

grooves/mm

Diffraction Efficiency (s- and p-polarization) 2

> 94

> 94

> 94

> 92

%

Polarization Dependent Loss 2

< 0.2

< 0.2

< 0.2

< 0.25

dB

Spectral Non-Uniformity 3

< 0.15

< 0.15

< 0.15

< 0.25

dB

Spatial PDL Non-Uniformity2

< 0.1

< 0.1

< 0.1

< 0.1

dB

Datasheet

Download

Download

Download

Download

N/A

1 Optical grating performance will remain substantially similar over a 5 ° variation in angle of incidence.

2 Worst case in the operational wavelength range.

3 Efficiency variation over the operational wavelength range (per polarization).

Description

Value

Substrate Width and Height Tolerance

standard tolerance ± 0.2 mm

Grating Area Clear Aperture (CA)

0.5 mm from substrate edge

Substrate Thickness

0.675 ± 0.050 mm

Surface Quality in CA

60/40 scratch/dig

Surface Quality outside of CA

no requirements

Material

Fused silica substrate, non-organic dielectrics. Contains no polymers.

Type

Substrate Size 1

Clear Aperture

Part Number

C band, 940 grooves/mm

24 × 9 mm

23 × 8 mm

T-940-C-2409-94

24 × 14 mm

23 × 13 mm

T-940-C-2414-94

C band, 966 grooves/mm

16 × 10 mm

15 × 9 mm

T-966-C-1610-94

27 × 10 mm

26 × 9 mm

T-966-C-2710-94

L band, 940 grooves/mm

27.4 × 10 mm

26.4 × 9 mm

T-940-L-2710-94

C+L band, 940 grooves/mm

27.4 × 10 mm

26.4 × 9 mm

T-940-CL-2710-92

1 Grating grooves are perpendicular to the first substrate dimension.