Reduction of Crosstalk in a Colourless, Multicasting LCOS Based Wavelength Selective Switch by the Application of Wavefront Encoding

被引：9

作者：

Robertson, Brian ^{[1
]}

Zhang, Zichen ^{[1
]}

Yang, Haining ^{[1
]}

Redmond, Maura M. ^{[1
]}

Collings, Neil ^{[1
]}

Liu, Jinsong ^{[1
]}

Lin, Ruisheng ^{[1
]}

Jeziorska-Chapman, Anna M. ^{[1
]}

Moore, John R. ^{[1
]}

Crossland, William A. ^{[1
]}

Chu, D. P. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Photon & Sensors Grp, Cambridge CB3 0FA, England

来源：

NEXT-GENERATION OPTICAL COMMUNICATION: COMPONENTS, SUB-SYSTEMS, AND SYSTEMS | 2012年 / 8284卷

基金：

英国工程与自然科学研究理事会;

关键词：

Optical switch; wavelength selective switch; wavefront encoding; crosstalk; phase holography;

D O I：

10.1117/12.907281

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To optimise the design of a wavelength selective switch based on a phase-only liquid crystal on silicon spatial light modulator and mitigate crosstalk, we propose using a technique referred to as wavefront encoding that involves purposefully building a wavefront error into the optical system. Experimental results taken at 674nm are presented that show wavefront encoding based on defocus can reduce the worst case crosstalk by >10dB compared to a standard Fourier transform set-up. In the case of the WSS we propose using wavefront encoding based on astigmatism.

引用

页数：8

共 5 条

[1]

Baxter G., 2006, OPT FIB COMM C

[2] Hologram optimisation using liquid crystal modelling [J].

Georgiou, AG ;

Komarcevic, M ;

Wilkinson, TD ;

Crossland, WA .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2005, 434 :511-526

[3]

Robertson B., 2011, APPL OPTICS UNPUB

[4] An integrated reconfigurable optical add-drop multiplexer based on using an opto-VLSI processor and a 4-f imaging system [J].

Shen, Mingya ;

Alameh, Kamal ;

Lee, Yong Tak .

OPTICAL AND QUANTUM ELECTRONICS, 2009, 41 (10) :711-718

[5] Dynamic holography for optical interconnections. II. Routing holograms with predictable location and intensity of each diffraction order [J].

Tan, KL ;

Warr, ST ;

Manolis, IG ;

Wilkinson, TD ;

Redmond, MM ;

Crossland, WA ;

Mears, RJ ;

Robertson, B .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2001, 18 (01) :205-215

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