Optically transparent digitally tunable wavelengthfilter
- 19 January 1995
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 31 (2) , 129-130
- https://doi.org/10.1049/el:19950087
Abstract
A new digital architecture combining a spatial light modulator written dynamic hologram and a fixed diffractive grating has been demonstrated to produce a tunable wavelength filter with a tuning resolution of 2.5 nm over a 160 nm range. Three modes of a broadband 1.45 µm laser diode have been isolated using the filter and selectively coupled into singlemode communications fibre.Keywords
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