Theory and fabrication of wavelength flattened 1 x N single-mode couplers.
Autor: | Mortimore DB, Arkwright JW |
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Jazyk: | angličtina |
Zdroj: | Applied optics [Appl Opt] 1990 Apr 20; Vol. 29 (12), pp. 1814-8. |
DOI: | 10.1364/AO.29.001814 |
Abstrakt: | By using a theoretical model to describe coupling between an array of cores, it is shown that a range of monolithic wavelength flattened 1 x N couplers may be fabricated. Graphs of coupled power with coupling length are shown and the procedure for obtaining wavelength flattened devices is discussed for values of N ranging from 2 to 7. The fabrication and performance of a 1 x 7 coupler is described. The device has low excess loss (<0.3 dB) together with good coupling uniformity of <1% standard deviation at both 1.3 microm and 1.53 microm. |
Databáze: | MEDLINE |
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