Fast Wavelength Locking of a Microring Resonator
| Autor: | Shu Yang, Xiaoliang Zhu, Michal Lipson, Lian-Wee Luo, Keren Bergman, Kishore Padmaraju, Raj Dutt, Madeleine Glick |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
business.industry Bandwidth (signal processing) Physics::Optics Initialization Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Periodic function Resonator Wavelength Optics Thermal Optoelectronics Dither Electrical and Electronic Engineering business Order of magnitude |
| Zdroj: | IEEE Photonics Technology Letters. 26:2365-2368 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/lpt.2014.2355720 |
| Popis: | Microring resonator devices require thermal initialization to match their intended operating wavelengths in a process called wavelength locking. We use the dither technique, where we apply a small periodic signal to the microring's integrated heater, to demonstrate reliable wavelength locking of a microring resonator filter to an operating wavelength at a wavelength shift rate of 0.012 nm/μs, an order of magnitude faster than previous demonstrations. We also identify and characterize fundamental speed limits of the wavelength locking process, showing that the integrated-heater bandwidth is the limiting factor. |
| Databáze: | OpenAIRE |
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