Mode analysis with a spatial light modulator as a correlation filter

被引：152

作者：

Flamm, Daniel ^{[1
]}

Naidoo, Darryl ^{[2
]}

Schulze, Christian ^{[1
]}

Forbes, Andrew ^{[2
,3
]}

Duparre, Michael ^{[1
]}

机构：

[1] Univ Jena, Inst Appl Opt, D-07743 Jena, Germany

[2] Natl Laser Ctr, Council Sci & Ind Res, ZA-0001 Pretoria, South Africa

[3] Univ KwaZulu Natal, Sch Phys, ZA-4000 Durban, South Africa

来源：

OPTICS LETTERS | 2012年 / 37卷 / 13期

关键词：

ANGULAR-MOMENTUM DENSITY; DECOMPOSITION;

D O I：

10.1364/OL.37.002478

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A procedure for the real-time analysis of laser modes using a phase-only spatial light modulator is outlined. The procedure involves encoding into digital holograms by complex amplitude modulation a set of orthonormal basis functions into which the initial field is decomposed. This approach allows any function to be encoded and refreshed in real time (60 Hz). We implement a decomposition of guided modes propagating in optical fibers and show that we can successfully reconstruct the observed field with very high fidelity. (C) 2012 Optical Society of America

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收藏

页码：2478 / 2480

页数：3

相关论文

共 14 条

[1] Novel approach for polarization-sensitive measurements of transverse modes in few-mode optical fibers [J].

Andermahr, N. ;

Theeg, T. ;

Fallnich, C. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2008, 91 (02) :353-357

[2] Pixelated phase computer holograms for the accurate encoding of scalar complex fields [J].

Arrizon, Victor ;

Ruiz, Ulises ;

Carrada, Rosibel ;

Gonzalez, Luis A. .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2007, 24 (11) :3500-3507

[3] Quantitative measurement of the orbital angular momentum density of light [J].

Dudley, Angela ;

Litvin, Igor A. ;

Forbes, Andrew .

APPLIED OPTICS, 2012, 51 (07) :823-833

[4] Fast M2 measurement for fiber beams based on modal analysis [J].

Flamm, Daniel ;

Schulze, Christian ;

Bruening, Robert ;

Schmidt, Oliver A. ;

Kaiser, Thomas ;

Schroeter, Siegmund ;

Duparre, Michael .

APPLIED OPTICS, 2012, 51 (07) :987-993

[5] Measuring the spatial polarization distribution of multimode beams emerging from passive step-index large-mode-area fibers [J].

Flamm, Daniel ;

Schmidt, Oliver A. ;

Schulze, Christian ;

Borchardt, Julia ;

Kaiser, Thomas ;

Schroeter, Siegmund ;

Duparre, Michael .

OPTICS LETTERS, 2010, 35 (20) :3429-3431

[6] WEAKLY GUIDING FIBERS [J].

GLOGE, D .

APPLIED OPTICS, 1971, 10 (10) :2252-&

[7] Complete modal decomposition for optical fibers using CGH-based correlation filters [J].

Kaiser, Thomas ;

Flamm, Daniel ;

Schroeter, Siegmund ;

Duparre, Michael .

OPTICS EXPRESS, 2009, 17 (11) :9347-9356

[8] PHASE-ONLY COMPLEX-VALUED SPATIAL FILTER [J].

KIRK, JP ;

JONES, AL .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1971, 61 (08) :1023-&

[9] Poynting vector and orbital angular momentum density of superpositions of Bessel beams [J].

Litvin, Igor A. ;

Dudley, Angela ;

Forbes, Andrew .

OPTICS EXPRESS, 2011, 19 (18) :16760-16771

[10] Spatially and spectrally resolved imaging of modal content in large-mode-area fibers [J].

Nicholson, J. W. ;

Yablon, A. D. ;

Ramachandran, S. ;

Ghalmi, S. .

OPTICS EXPRESS, 2008, 16 (10) :7233-7243