Telecom Gratings
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FSTG-PING
Polarization independent (PING) telecom gratings from Ibsen are produced by holographic stepper technology in 100% dielectric materials. This leads to unbeatable thermal and environmental stability, with no polymers, epoxies, gelatins or metals in the optical path nor in the grating whatsoever. Advanced etching technology ensures highest diffraction efficiency and lowest PDL over a very broad bandwidth. Low angular sensitivity is an added bonus for module design and assembly.
Benefits
- High diffraction efficiency and low PDL
- Environmentally and thermally stable
- Low sensitivity to illumination angle
- Convenient optical design by transmission principle
- Combined dispersion and beam folding elements
- Low straylight
Applications
- ROADMs
- Wavelength blockers
- Wavelength Selective Switches
- Dynamic gain Equalizers
- Mux / Demux / OSA
Features and Specifications
| Parameter | Specification | Comments |
|---|---|---|
| Production technology | Holographic stepper and RIE etching | |
| Resolution | 966.2 lines/mm (other resolutions available) | +/- 0.1 line/mm |
| Bandwidth | 1525 nm - 1565 nm (or customized) | |
| Incidence angle | 50 degrees | High angular tolerance (see plot) below |
| Diffraction efficiency (TE) | > 90% | |
| Diffraction efficiency (TM) | > 90% | |
| PDL | < 0.25 dB | |
| Materials | 100% dielectric materials | No polymers, epoxies, gelatins or metals |
| Grating area | 8 mm x 4 mm or custom | |
| Chip size | 9 mm x 8 mm or custom | For mounting and on-chip identification |
| Thickness | 0.625 mm | +/- 0.05 mm |
| Maximum operation temperature | 500 degrees C | |
| Packaging | Gelpak containers, up to 40 gratings per Gelpak | Sealed in cleanroom |
Typical Performance
Sample module design:
Variants
PING gratings are manufactured on an OEM basis, and today include a number of different variants:
- C-band PING 966 l/mm (the original)
- Extended C-band PING 966 l/mm
- L-band PING 966 l/mm
- C-band PING 940 l/mm
- L-band PING 940 l/mm
- 1310 nm band PING 1144 l/mm
Ordering
Request a quotation on-line by following the quote link at the upper right of this page.
Download
You can download the product sheet below, or request us to e-mail you one by following the "request brochure" link at the upper right of the page.
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