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Design of a flat-field arrayed waveguide grating
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering. KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.ORCID iD: 0000-0002-3401-1125
2005 (English)In: Optoelectronic Devices and Integration, 2005, Vol. 5644, 500-507 p.Conference paper, Published paper (Refereed)
Abstract [en]

A curved image plane is usually used in a conventional Rowland-type AWG For some applications (e.g., sensing), a straight image plane is desirable so that the output field at the image plane can be received directly with a detector-array. If one simply chooses a flat output plane (instead of a circular output curve) without optimization for a conventional AWG of Rowland circle type, some considerable aberrations will be introduced, which degrade the performances of the AWG The aberrations are calculated and analyzed with an optical path function. A three-stigmatic-point method is used to optimize the design of an AWG with a straight image plane and minimize the aberrations. In this design, the aberrations at three special wavelengths are removed. The first order aberrations at all wavelengths are also eliminated. An 80-channel flat-field AWG is designed as an example. The results show that the aberrations are reduced greatly and a good spectral response with tolerated side-lodes is obtained.

Place, publisher, year, edition, pages
2005. Vol. 5644, 500-507 p.
Series
Proceedings of SPIE, ISSN 0277-786X ; 5644
Keyword [en]
flat-field, arrayed waveguide grating, stigmatic points, aberration, sensor
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-36721DOI: 10.1117/12.566869ISI: 000227634300062OAI: oai:DiVA.org:kth-36721DiVA: diva2:430990
Conference
Conference on Optoelectronic Devices and Integration Beijing, PEOPLES R CHINA, NOV 08-11, 2004
Note

QC 20110714

Available from: 2011-07-14 Created: 2011-07-13 Last updated: 2017-03-29Bibliographically approved

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He, Sailing

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Shi, YaochengDai, DaoxinZhou, QincunHe, Sailing
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