| Autor: |
Kevin A. Williams, Jos J. G. M. van der Tol, Sander Reniers, Rui Ma, Yuya Shoji, Tetsuya Mizumoto, Yuqing Jiao |
| Přispěvatelé: |
Photonic Integration, Eindhoven Hendrik Casimir institute |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Optica, 8(12), 1654-1661. OSA Publishing |
| ISSN: |
2334-2536 |
| Popis: |
In photonic integrated circuits (PICs), optical isolators and circulators are essential to prevent lasers from backreflections and to reroute the light flow. In this paper, an integrated polarization-independent device that can be operated as an optical isolator or an optical circulator, based on an InP membrane on silicon platform, is demonstrated. A cerium-doped yttrium iron garnet die is adhesively bonded on a Mach–Zehnder interferometer, in combination with four polarization converters. The device shows maximum optical isolations of 27.0 dB for transverse-electric (TE)-mode input and 34.0 dB for transverse-magnetic TM-mode input. The device also works as a four-port optical circulator. Optical isolations of at least 18.6 dB and 16.4 dB are measured between each circulator port pair for TE- and TM-mode input, respectively. This work could remove the optical interfaces between laser and isolator for robust production. It also provides a step forward toward a multifunctional and high-density PIC. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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