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Widely tunable bottom-emitting vertical-cavity SOAs

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5 Author(s)
Cole, Garrett D. ; Mater. Dept., Univ. of California Santa Barbara, CA, USA ; Bjorlin, E.S. ; Wang, C.S. ; MacDonald, Noel C.
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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.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 12 )