PROJECT TITLE :

High-sweep-rate 1310 nm MEMS-VCSEL with 150 nm continuous tuning range

ABSTRACT :

Microelectromechanical-systems-based mostly vertical-cavity surface-emitting lasers (MEMS-VCSELs) capable of a 150 nm continuous tuning vary close to 1310 nm are demonstrated. These devices use a skinny optically pumped active region structure with massive free-spectral range, which promotes wide and continuous tuning. To achieve VCSEL emission at 1310 nm, a large-gain-bandwidth indium phosphide- based mostly multiple quantum well active region is combined with a good-bandwidth absolutely oxidised GaAs-primarily based mirror through wafer bonding, with tuning enabled by a suspended dielectric high mirror. These devices are capable of being scanned over the entire tuning range at frequencies up to 500 kHz, making them ideal for applications like swept supply optical coherence tomography and high-speed transient spectroscopy.


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