Frequently Asked Questions

These FBGs are built to the 100 GHz and 200 GHz ITU grid, standard C-band (1530–1565 nm), with custom wavelengths available across 1510–1580 nm.

The filters have a flat-top reflection profile with typical reflectivity above 99.5% and steep spectral roll-off, giving channel isolation greater than 20 dB to avoid adjacent-channel crosstalk.

Yes — for stable operation they're supplied in an athermal package with wavelength stability better than 0.16 nm across 0–70 °C, and insertion loss below 0.15 dB.