Coherence in multielement-phased vertical-cavity surface-emitting laser arrays using resonance tuning
BJ Thompson, Z Gao, STM Fryslie… - IEEE Photonics …, 2017 - ieeexplore.ieee.org
IEEE Photonics Journal, 2017•ieeexplore.ieee.org
We show that optical coupling can be achieved reproducibly and with high yield by
resonance tuning the elements of substrate-emitting and top-emitting vertical-cavity surface-
emitting laser arrays. The resonance tuning is enabled by electrical isolation of the lasing
elements in the array, which in this paper is done by post fabrication processing. Prior to
electrical isolation, the laser arrays exhibit incoherent optical properties. Using resonance
tuning, both in-phase and out-of-phase coherent modes are observed.
resonance tuning the elements of substrate-emitting and top-emitting vertical-cavity surface-
emitting laser arrays. The resonance tuning is enabled by electrical isolation of the lasing
elements in the array, which in this paper is done by post fabrication processing. Prior to
electrical isolation, the laser arrays exhibit incoherent optical properties. Using resonance
tuning, both in-phase and out-of-phase coherent modes are observed.
We show that optical coupling can be achieved reproducibly and with high yield by resonance tuning the elements of substrate-emitting and top-emitting vertical-cavity surface-emitting laser arrays. The resonance tuning is enabled by electrical isolation of the lasing elements in the array, which in this paper is done by post fabrication processing. Prior to electrical isolation, the laser arrays exhibit incoherent optical properties. Using resonance tuning, both in-phase and out-of-phase coherent modes are observed.
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