Dear Colleagues,

It is our pleasure to invite you to contribute to the upcoming Special Issue on “Photonic Integration in Applied Sciences”. Relevant submissions presenting exciting results (experimental or theoretical) either as short letters or full-length papers are welcome. We will also be soliciting thorough reviews of important results already published.

The idea of manipulating photons on a chip-scale device was proposed more than 50 years ago, however recent advances such as ultra-low loss waveguides, heterogeneous integration, on-chip frequency combs and novel modulators has brought photonic integrated circuits closer to widespread commercial deployment. The field of photonic integration is rapidly evolving due to the development of new on-chip functionalities for a wide range of applications, newly emerging material platforms for active and passive devices, and new concepts for photon manipulation for example through the plasmonic effect or the Brillouin scattering effect.

This issue aims to capture the major breakthroughs in the areas of (but not limited to):

• Electronically and optically-reconfigurable photonic devices
• Novel on-chip modulators
• 2D and 3D photonic integration, including heterogeneous integration and laser written waveguides
• Electronics-photonics co-integration
• Design of novel integrated optical circuits
• Applications of integrated photonics including integrated microwave photonics, on-chip optical signal processing, quantum optics, mid-IR, sensing
• On-chip lasers including semiconductor lasers and rare-earth and transition-metal doped solid-state lasers
• Silicon-based photonics and plasmonics
• Integrated nonlinear optics
• On-chip frequency combs and supercontinuum sources

SI Best paper award (300 CHF, a certificate and a free publication opportunity for next submission to Applied Sciences) will be selected from this special issue by an evaluation panel consisting of the editors and leading-experts in the field.

Dr. Amol Choudhary
Dr. David Marpaung
Dr. Maurizio Burla
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

1. integrated optics
2. on-chip lasers
3. integrated microwave photonics
4. plasmonics
5. heterogeneous integration
6. optical frequency combs
7. silicon photonics
8. nonlinear optics
9. optical signal processing
10. low-loss waveguides