Second-order DFB lasers fabricated by deep UV contact lithography and GSMBE |
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Authors: | Goarin E Bonnevie D Boulou M |
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Affiliation: | Lab. de Marcoussis CR CGE, France; |
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Abstract: | DFB ridge waveguide lasers at 1.55 mu m with uniform second-order gratings defined by deep UV lithography have been realised for the first time. The lasers have been fabricated using gas source molecular beam epitaxial (GSMBE) heterostructures grown in a two-step process. The characteristics of the DFB lasers (28 mA minimum threshold current, single-mode behaviour at output power in excess of 5 mW for more than 80% of the lasers and very low dispersion (+or-0.6 nm) of the lasing wavelength) demonstrate that deep UV lithography can be successfully used for the fabrication of DFB lasers.<> |
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