Telecom 850 nm band gratings

PING - Polarization independent (low PDL) gratings for 850 nm band

Main characteristics:

Production technology: Holostepper (Holographic stepper) and RIE etching
850 nm band is defined as 823 nm - 876 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

While we primarily supply PING gratings as OEM products, the following selection of gratings are stock available. Or - request a quotation on these or customized gratings .

Grating	Resolution	AOI	Grating area	Chip size	Bandwidth	DE (*)	PDL
PING-Sample-012	1764.7 l/mm	49.9°	10.2 mm x 5.2 mm	11.2 mm x 10.2 mm	826 nm - 873 nm	>85%	<0.25 dB
PING-Sample-020	1767.7 l/mm	49.9°	12.5 mm x 8.0 mm	15.0 mm x 12.0 mm	795 nm - 885 nm	>90%	<0.25 dB

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

PING (telecom 850 nm band) grating performance

Angle dependency of PING gratings