Telecom C-band gratings

PING – Polarization independent (low PDL) gratings for telecom C-band

Main characteristics:

  • Fused silica transmission gratings
  • Production technology: Holostepper (Holographic stepper) and RIE etching
  • C-band is defined as 1525 nm – 1565 nm (but can be OEM customized)
  • 100% dielectric materials – No polymers, epoxies, gelatins or metals
  • Grating chip thickness: 0.625 mm
  • Operating temperature at least 500° C
  • Packaging: Packed in semiconductor grade Gelpak containers, sealed in class 10 cleanroom

Product Overview

While we primarily supply PING gratings as OEM products, the following gratings, and many other gratings, are available from stock. You can order the gratings via the product links, or request a quotation on these or customized gratings.

GratingResolutionAOIGrating areaChip sizeDE (*)PDL
PING-600-045600 l/mm
40 mm x 40 mm42 mm x 42 mm>90%<0.25 dB
PING-Sample-003940 l/mm
19 mm x 13.5 mm21 mm x 15 mm>90%<0.25 dB
PING-Sample-001966.2 l/mm49.9°8 mm x 4 mm9 mm x 8 mm>90%<0.25 dB
6.5 mm x 5 mm7.5 mm x 7 mm>90%<0.25 dB
12 mm x 3 mm15.5 mm x 3.5 mm>90%<0.25 dB
14.5 mm x 8 mm16 mm x 10 mm>90%<0.25 dB
14.5 mm x 8 mm16 mm x 10 mm>92%<0.25 dB
14.5 mm x 8 mm16 mm x 10 mm>94%<0.25 dB
PING-Sample-14245°15 mm x 9 mm16 mm x 10 mm≥94%≤ 0.3 dB
14 mm x 11.5 mm16 mm x 13.5 mm>90%<0.25 dB
PING-Sample-0831000 l/mm
19 mm x 13.5 mm21 mm x 15 mm>90%<0.25 dB
PING-1000-0421000 l/mm
40 mm x 37 mm43.6 mm x 38 mm>90%<0.25 dB

(*) Note: DE is the minimum absolute diffraction efficiency across both polarizations and the wavelength range

(**) Note: PING-Sample-004 works over the Extended C-band 1510 nm – 1595 nm

Typical Performance

PING (telecom C-band) grating performance

PING (telecom C-band) grating performance


Angle dependency of PING gratings

Angle dependency of PING gratings