Telecom L-band gratings

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

Main characteristics:

  • Fused silica transmission gratings
  • Production technology: Holostepper (Holographic stepper) and RIE etching
  • L-band is defined as 1570 nm – 1610 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 selection of gratings, an numerous other gratings, are stock available. You can order the below gratings online, or request a quotation on these or customized gratings.

Grating Resolution AOIGrating area Chip sizeDE (*) PDL
PING-Sample-072 940 l/mm 48.5° 14 mm x 11.5 mm 16 mm x 13.5 mm>90%<0.25 dB
PING-Sample-073 940 l/mm 48.5° 19 mm x 13.5 mm21 mm x 15 mm >90% <0.25 dB

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

Typical Performance

PING (telecom L-band) grating performance

PING (telecom L-band) grating performance

Angle dependency of PING gratings

Angle dependency of PING gratings