Variable optical attenuator and dynamic mode group equalizer for few mode fibers

被引：13

作者：

Blau, Miri ^{[1
]}

Weiss, Israel ^{[1
]}

Gerufi, Jonathan ^{[1
]}

Sinefeld, David ^{[1
]}

Bin-Nun, Moran ^{[1
]}

Lingle, Robert ^{[2
]}

Gruner-Nielsen, Lars ^{[3
]}

Marom, Dan M. ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Dept Appl Phys, Jerusalem, Israel

[2] OFS, Norcross, GA 30071 USA

[3] OFS, DK-2605 Brondby, Denmark

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 25期

关键词：

DIVISION MULTIPLEXED TRANSMISSION; PHOTONIC LANTERNS; AMPLIFIER;

D O I：

10.1364/OE.22.030520

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Variable optical attenuation (VOA) for three-mode fiber is experimentally presented, utilizing an amplitude spatial light modulator (SLM), achieving up to -28dB uniform attenuation for all modes. Using the ability to spatially vary the attenuation distribution with the SLM, we also achieve up to 10dB differential attenuation between the fiber's two supported mode group (LP01 and LP11). The spatially selective attenuation serves as the basis of a dynamic mode-group equalizer (DME), potentially gain-balancing mode dependent optical amplification. We extend the experimental three mode DME functionality with a performance analysis of a fiber supporting 6 spatial modes in four mode groups. The spatial modes' distribution and overlap limit the available dynamic range and performance of the DME in the higher mode count case. (C)2014 Optical Society of America

引用

页码：30520 / 30527

页数：8

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