Evaluation of Laguerre-Gaussian beam generated with integrable phase-modulating surface-emitting lasers

Yu Takiguchi; Kazuyoshi Hirose; Takahiro Sugiyama; So Uenoyama; Yoshiro Nomoto; Yoshitaka Kurosaka

doi:10.1117/12.2316413

24 April 2018 Evaluation of Laguerre-Gaussian beam generated with integrable phase-modulating surface-emitting lasers

Yu Takiguchi, Kazuyoshi Hirose, Takahiro Sugiyama, So Uenoyama, Yoshiro Nomoto, Yoshitaka Kurosaka

Proceedings Volume 10712, Optical Manipulation Conference; 107120P (2018) https://doi.org/10.1117/12.2316413
Event: SPIE Structured Light, 2018, Yokohama, Japan

Abstract

We demonstrated direct surface-emitting of Laguerre–Gaussian beams with wavefront modulated lasers. This integrable phase-modulating surface-emitting lasers has potential to emit arbitrarily configured beam patterns without requiring any optical elements or scanning devices. The fabricated devices are on-chip-sized, making them suitable for integration. We introduce a phase-modulating resonator in a semiconductor laser, which analogically behaves as phaseonly holograms, kinoform, to allow the concurrent realization of lasing and phase modulation. Particularly, this is promising in the use for free-space optical communications due to the fact that coaxial propagation of orbital angular momentum (OAM) properties with different OAM mode states are mutually orthogonal.

Citation Download Citation

Yu Takiguchi, Kazuyoshi Hirose, Takahiro Sugiyama, So Uenoyama, Yoshiro Nomoto, and Yoshitaka Kurosaka "Evaluation of Laguerre-Gaussian beam generated with integrable phase-modulating surface-emitting lasers", Proc. SPIE 10712, Optical Manipulation Conference, 107120P (24 April 2018); https://doi.org/10.1117/12.2316413

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