Widely tunable bottom-emitting vertical-cavity SOAs |
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Authors: | Cole GD Bjorlin ES Wang CS MacDonald NC Bowers JE |
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Affiliation: | Mater. Dept., Univ. of California Santa Barbara, CA, USA; |
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Abstract: | We present bottom-emitting tunable vertical-cavity semiconductor optical amplifiers (VCSOAs) with an effective wavelength tuning range of >20 nm. These devices utilize a high reflectivity micromechanically tunable Bragg mirror as the back reflector. Compared with our first generation tunable VCSOAs, the bottom-emitting devices exhibit a two-fold increase in the effective tuning range as well as a five-fold reduction in the required tuning voltage. |
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