Fabrication of semi-cylindrical channels for one-dimensional fiber array edge couplers
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866908302847246336 |
|---|---|
| author | Amirtharaj, Sakthi Priya Peesapati, Saandeep Ram, Sirshi S Krishnan, Sivarama Prabhakar, Anil |
| author_facet | Amirtharaj, Sakthi Priya Peesapati, Saandeep Ram, Sirshi S Krishnan, Sivarama Prabhakar, Anil |
| contents | Photonic Integrated Circuits (PICs) are essential for high-speed and compact optoelectronic applications, yet efficient optical coupling to PIC remains a critical challenge, where minimizing insertion losses is crucial for high-performance applications. Fiber arrays are commonly used as edge couplers for PICs. In this work, we demonstrate the fabrication of semi-cylindrical channels on glass substrates using femtosecond laser micromachining for fiber arrays edge couplers. This method enables the formation of narrow, well-defined grooves in glass substrates with submicron accuracy, facilitating reliable fiber positioning for improved coupling efficiency. Experimental results demonstrate the feasibility of this approach for dense fiber arrays, with a narrow separation of \sim 3 μm. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_04157 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fabrication of semi-cylindrical channels for one-dimensional fiber array edge couplers Amirtharaj, Sakthi Priya Peesapati, Saandeep Ram, Sirshi S Krishnan, Sivarama Prabhakar, Anil Optics Applied Physics Photonic Integrated Circuits (PICs) are essential for high-speed and compact optoelectronic applications, yet efficient optical coupling to PIC remains a critical challenge, where minimizing insertion losses is crucial for high-performance applications. Fiber arrays are commonly used as edge couplers for PICs. In this work, we demonstrate the fabrication of semi-cylindrical channels on glass substrates using femtosecond laser micromachining for fiber arrays edge couplers. This method enables the formation of narrow, well-defined grooves in glass substrates with submicron accuracy, facilitating reliable fiber positioning for improved coupling efficiency. Experimental results demonstrate the feasibility of this approach for dense fiber arrays, with a narrow separation of \sim 3 μm. |
| title | Fabrication of semi-cylindrical channels for one-dimensional fiber array edge couplers |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2504.04157 |