Telecom O-band gratings

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

Main characteristics:

  • Fused silica transmission gratings
  • Production technology: Holostepper (Holographic stepper) and RIE etching
  • O-band is defined as 1274 nm - 1346 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 non-exhaustive selection of gratings are stock available. Or - request a quotation on these or customized gratings .


Grating Resolution AOI Grating area Chip size DE (*) PDL
PING-Sample-006 1143.9 l/mm 49.9° 10.2 mm x 5.2 mm 11.2 mm x 10.2 mm >90% <0.25 dB
PING-Sample-106 1143.9 l/mm 49.9° 14 mm x 11.5 mm 16 mm x 13.5 mm >90% <0.25 dB


(*) Note: DE is minimum absolute diffraction efficiency across both polarizations and the wavelength range
(**) Note: PING-Sample-004 works over Extended C-band 1510 nm - 1595 nm

Typical Performance

Typical PING Grating Performance
PING (telecom O-band) grating performance

Angle dependency of PING gratings
Angle dependency of PING gratings

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