Interleaved Silicon Nitride AWG Spectrometers

Autor: Christopher Richard Doerr, B. Imran Akca
Přispěvatelé: Biophotonics and Medical Imaging, LaserLaB - Biophotonics and Microscopy
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Akca, B I & Doerr, C R 2019, ' Interleaved Silicon Nitride AWG Spectrometers ', IEEE Photonics Technology Letters, vol. 31, no. 1, 8554299, pp. 90-93 . https://doi.org/10.1109/LPT.2018.2884244
IEEE Photonics Technology Letters, 31(1):8554299, 90-93. Institute of Electrical and Electronics Engineers Inc.
ISSN: 1041-1135
DOI: 10.1109/LPT.2018.2884244
Popis: Interleaved arrayed waveguide gratings (AWGs) have a great potential in providing large channel counts and narrower channel spacings for many applications, including optical communication, spectroscopy, and imaging. Here, a 75-channel silicon nitride based interleaved AWG was experimentally demonstrated. The design is comprised of a 3-channel primary AWG with 1 nm of resolution and three 25-channel secondary AWGs each with 3 nm of resolution. The final device has a spectral resolution of 1 nm over 75 nm bandwidth centered at 1550 nm. Its performance is compared with a conventional AWG spectrometer with 75 nm of bandwidth and 1 nm of resolution. The interleaved AWG demultiplexer showed lower crosstalk and better uniformity in addition to being two times smaller than the conventional design.
Databáze: OpenAIRE