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Bidirectional electrostatic MEMS-tunable VCSELs

Arnhold Simonsen, Masoud Payandeh, Søren Engelberth Hansen, Andrey Marchevsky, Gyeong Cheol Park, Hitesh Kumar Sahoo, Elizaveta Semenova, Ole Hansen, and Kresten Yvind

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Abstract

Microelectromechanical system (MEMS) vertical cavity surface-emitting lasers (VCSELs) are the fastest coherently tunable lasers (nm/ns) due to their unique Doppler-assisted tuning mechanism. However, in standard electrostatic actuation, the response is highly nonlinear and large (>100 V) dynamic voltages are needed for MHz sweep rates. We present a bidirectional MEMS VCSEL as a solution to these challenges where static voltages can be used to enable substantially linear and amplified wavelength tuning with respect to the fast tuning (MEMS) voltage. Using an InP/SOI MEMS bonded structure, we show a tuning range of 54.5 nm (gain limited) centered around 1586 nm at an actuation frequency of 2.73 MHz.

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Supplementary Material (1)

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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