Optimum-Transmission Free-Space Optical Communications
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866911623176781824 |
|---|---|
| author | Dhara, Prajit Saif, Babak N. Shapiro, Jeffrey H. Guha, Saikat |
| author_facet | Dhara, Prajit Saif, Babak N. Shapiro, Jeffrey H. Guha, Saikat |
| contents | Slepian developed the Prolate Spheroidal Wavefunction (PSW) spatial-mode basis, which forms the normal modes of the Fresnel-propagation kernel of a free-space optical communications channel bookended by hard-circular apertures. The zero-th order PSW mode has the highest power-transfer eigenvalue, exciting which on the transmitter side therefore maximizes the transmissivity for single-spatial-mode communications. We show that the transmissivity performance of this fundamental PSW mode can be obtained by an aperture-truncated Gaussian beam of an optimized beam waist, despite the two mode shapes deviating from one another in the near-field regime. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_23417 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Optimum-Transmission Free-Space Optical Communications Dhara, Prajit Saif, Babak N. Shapiro, Jeffrey H. Guha, Saikat Optics Quantum Physics Slepian developed the Prolate Spheroidal Wavefunction (PSW) spatial-mode basis, which forms the normal modes of the Fresnel-propagation kernel of a free-space optical communications channel bookended by hard-circular apertures. The zero-th order PSW mode has the highest power-transfer eigenvalue, exciting which on the transmitter side therefore maximizes the transmissivity for single-spatial-mode communications. We show that the transmissivity performance of this fundamental PSW mode can be obtained by an aperture-truncated Gaussian beam of an optimized beam waist, despite the two mode shapes deviating from one another in the near-field regime. |
| title | Optimum-Transmission Free-Space Optical Communications |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2604.23417 |