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Widely tunable bottom-emitting vertical-cavity SOAs

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

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