1. The FTIR employs the broad waveband infrared spectroscopy principle.

2. And we imaged the manuscript in 14 different wavebands of light.

3. The module is available for two frequency bands, the licensed 10.5GHz waveband and the unlicensed 5.8GHz band.

4. Collimators Geltech™ aspheric glass lenses mounted in standard fiber-connector housings, for use in coupling and collimating applications in the visible and near-infrared (NIR) wavebands

5. A flexible band tunable filter design is disclosed which is capable of selecting any single channel or multiple of adjacent channels in a waveband of an optical signal in an optical communication network.