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Widely Tunable Bottom-Emitting Vertical-Cavity SOAs

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http://ieeexplore.ieee.org/iel5/68/32937/01542137.pdf?isnumber=32937∏=JNL&arnumber=1542137&arSt=+2526&ared=+2528&arAuthor=+Cole%2C+G.D.%3B++Bjorlin%2C+E.S.%3B++Wang%2C+C.S.%3B++MacDonald%2C+N.C.%3B++Bowers%2C+J.E.
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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