Aberration Correction for Free Space Optical Communications Using Rectangular Zernike Modal Wavefront Sensing

被引：35

作者：

Feng, Feng ^{[1
]}

White, Ian H. ^{[1
]}

Wilkinson, Timothy D. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Div Elect, Cambridge CB3 0FA, England

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2014年 / 32卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

Adaptive optics; beam steering; free-space optical communications; spatial light modulators (SLMs); Q-ARY PPM; TAPERED LASER-DIODE; MIMO TRANSMISSION; ATMOSPHERIC-TURBULENCE; POLYNOMIALS; SYSTEMS; CHANNEL; SENSOR;

D O I：

10.1109/JLT.2014.2301634

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：

A time multiplexed rectangular Zernike modal wave-front sensor based on a nematic phase-only liquid crystal spatial light modulator and specially designed for a high power two-electrode tapered laser diode which is a compact and novel free space optical communication source is used in an adaptive beam steering free space optical communication system, enabling the system to have 1.25 GHz modulation bandwidth, 4.6 degrees angular coverage and the capability of sensing aberrations within the system and caused by atmosphere turbulence up to absolute value of 0.15 waves amplitude and correcting them in one correction cycle. Closed-loop aberration correction algorithm can be implemented to provide convergence for larger and time varying aberrations. Improvement of the system signal-to-noise-ratio performance is achieved by aberration correction. To our knowledge, it is first time to use rectangular orthonormal Zernike polynomials to represent balanced aberrations for high power rectangular laser beam in practice.

引用

页码：1239 / 1245

页数：7

共 18 条

[1] Direct measurement of Zernike aberration modes with a modal wavefront sensor [J].

Booth, MJ .

ADVANCED WAVEFRONT CONTROL: METHODS, DEVICES, AND APPLICATIONS, 2003, 5162 :79-90

[2] Receiver optimization in turbulent free-space optical MIMO channels with APDs and Q-ary PPM [J].

Cvijetic, Neda ;

Wilson, Stephen G. ;

Brandt-Pearce, Maite .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2007, 19 (2-4) :103-105

[3] Multilevel coding in free-space optical MIMO transmission with Q-ary PPM over the atmospheric turbulence channel [J].

Djordjevic, Ivan B. ;

Vasic, Bane ;

Neifeld, Mark A. .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2006, 18 (13-16) :1491-1493

[4] Free Space Communications With Beam Steering a Two-Electrode Tapered Laser Diode Using Liquid-Crystal SLM [J].

Feng, Feng ;

White, Ian H. ;

Wilkinson, Timothy D. .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2013, 31 (12) :2001-2007

[5] Free space optical wireless communications using directly modulated two-electrode high brightness tapered laser diode [J].

Feng, Feng ;

Page, H. ;

Penty, R. V. ;

White, I. H. ;

Wilkinson, T. D. ;

Michel, N. ;

Calligaro, M. ;

Robert, Y. ;

Parillaud, O. ;

Krakowski, M. .

ELECTRONICS LETTERS, 2012, 48 (05) :281-U1582

[6] Aberration correction in an adaptive free-space optical interconnect with an error diffusion algorithm [J].

Gil-Leyva, Diego ;

Robertson, Brian ;

Wilkinson, Timothy D. ;

Henderson, Charley J. .

APPLIED OPTICS, 2006, 45 (16) :3782-3792

[7] Link reliability improvement for optical wireless communication systems with temporal-domain diversity reception [J].

Kwok, C. H. ;

Penty, Richard V. ;

White, Ian H. .

IEEE PHOTONICS TECHNOLOGY LETTERS, 2008, 20 (9-12) :700-702

[8] A Study on LCoS-Based Remote Nodes for 60 GHz Fiber-Wireless Links [J].

Lim, Christina ;

Pulikkaseril, Cibby ;

Lee, Ka-Lun .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2012, 30 (19) :3110-3117

[9] Orthonormal polynomials in wavefront analysis: analytical solution [J].

Mahajan, Virendra N. ;

Dai, Guang-ming .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2007, 24 (09) :2994-3016

[10] ZERNIKE CIRCLE POLYNOMIALS AND OPTICAL ABERRATIONS OF SYSTEMS WITH CIRCULAR PUPILS [J].

MAHAJAN, VN .

APPLIED OPTICS, 1994, 33 (34) :8121-8124

← 1 2 →