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Design of wavelength division demultiplexers based on holographic gratings with a low polarization dependent loss
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.
2006 (English)In: Guangzi Xuebao/Acta Photonica Sinica, ISSN 1004-4213, Vol. 35, no 11, 1667-1671 p.Article in journal (Refereed) Published
Abstract [en]

An optimizing method of main structure parameters (e. g. , the thickness of the crystal) and writing conditions (e. g., the incident angle) is presented for a holographic grating wavelength division demultiplexer based on photorefractive LiNbO3 crystals. The key performance parameters of the demultiplexer, such as the loss and the polarization dependent loss (PDL), are optimized by selecting favourite structure parameters using a rigorous coupled wave analysis method. Numerical results show that a low loss and a low PDL can be achieved by using the optimal crystal thickness and incident angle. The designed demultiplexer obtains the favourite synthetical performance for an actual application. The experimental method of the grating recorded is also introduced in the present paper. The experimental results accorded with theoretical computation commendably by testing the three different specimens.

Place, publisher, year, edition, pages
2006. Vol. 35, no 11, 1667-1671 p.
Keyword [en]
Information optics, Polarization dependent loss, Rigorous coupled wave analysis, Wavelength division multiplexing
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-155972Scopus ID: 2-s2.0-33846352236OAI: oai:DiVA.org:kth-155972DiVA: diva2:766102
Note

QC 20141126

Available from: 2014-11-26 Created: 2014-11-17 Last updated: 2016-12-20Bibliographically approved

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Cheng, LihuaSong, JunWang, Jian
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