The diffractive characteristics at communication wavelengths of volume holographic gratings with the orthogonal readout scheme

ZHENG Xiao-dan; LIU Dong; TAO Shi-quan; WANG Da-yong

In order to obtain good quality and high-dense wavelength division multiplexing (DWDM) devices,the diffraction property of volume holographic gratings, produced in an iron and indium co-doped LiNbO3 crystal by means of the transmission writing and orthogonal readout (TWOR) scheme,was analyzed theoretically and verified experimentally.The volume holographic grating with a grating size ratio of 1:1 was recorded at the laser wavelength of 532nm, and was successfully read out by using a tunable laser at the central wavelength around 1550nm.Correspondingly, the wavelength selectivity of 0.5nm was achieved, which was measured as the 3dB bandwidth of the diffraction efficiency curve.Meanwhile, the relationship of diffraction efficiency versus reading wavelength for such a volume holographic grating was obtained with the corrected solution to the 2-D coupled-wave equation in closed mathematical form.The experimental results agreed with the theoretical prediction well,and they show that the presented method is helpful for making a practical holographic grating DWDM device.

Corresponding author: WANG Da-yong, wdyong@bjut.edu.cn

1. College of Applied Sciences, Beijing University of Technology, Beijing 100024, China

Received Date: 2008-01-11

Available Online: 2009-04-25

Abstract: In order to obtain good quality and high-dense wavelength division multiplexing (DWDM) devices,the diffraction property of volume holographic gratings, produced in an iron and indium co-doped LiNbO3 crystal by means of the transmission writing and orthogonal readout (TWOR) scheme,was analyzed theoretically and verified experimentally.The volume holographic grating with a grating size ratio of 1:1 was recorded at the laser wavelength of 532nm, and was successfully read out by using a tunable laser at the central wavelength around 1550nm.Correspondingly, the wavelength selectivity of 0.5nm was achieved, which was measured as the 3dB bandwidth of the diffraction efficiency curve.Meanwhile, the relationship of diffraction efficiency versus reading wavelength for such a volume holographic grating was obtained with the corrected solution to the 2-D coupled-wave equation in closed mathematical form.The experimental results agreed with the theoretical prediction well,and they show that the presented method is helpful for making a practical holographic grating DWDM device.

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Reference (12)

[1]	BOFFI P,UBALDI M C,PICCININ D,et al.1550nm volume holography for optical communication devices[J].IEEE Photonics Technology Letters,2000,12(10):1355-1357.
[2]	AN J W,KIM N,LEE K W.Volume holographic wavelength demultiplexer based on rotation multiplexer in the 90° geometry[J].Opt Commun,2001,197(4/6):247-254.
[3]	NEE I,BEYER O,MULLER M,et al.Multichannel wavelength-division multiplexing with thermally fixed Bragg gratings in photorefractive lithium niobate crystal[J].J O S A,2003,B20(8):1593-1602.
[4]	SATO A,SCEPANOVIC M,KOSTUK R K.Holographic edge-illuminated polymer Bragg gratings for dense wavelength division optical filters at 1550nm[J].Appl Opt,2003,42(5):778-784.
[5]	YE H,WANG H,MAO H,et al.Exposure characteristics of photopolymer holographic gratings[J].Laser Technology,2007,31(2):175-178(in Chinese).
[6]	BREER S,BUSE K.Wavelength demultiplexing with volume phase holograms in photorefractive lithium niobate[J].Appl Phys,1998,B66(3):339-345.
[7]	AN J W,KIM N,LEE K W.50GHz-spaced 42-channel demultiplexer based on the photopolymer volume grating[J].Japan J A P,2002,41(6):L665-L666.
[8]	ZHONG L Y,YANG Q M,ZHANG W B.The noise and diffraction efficiency of display hologram[J].Laser Technology,2001,25(4):283-286(in Chinese).
[9]	CHEN Sh F,WU Ch Sh,SUN Ch Ch.Design for a high dense wavelength division multiplexer based on volume holographic gratings[J].Opt Engng,2004,43(9):2028-2033.
[10]	CAO L C,MA X S,HE Q Sh,et al.Imaging spectral device based on multiple volume holographic gratings[J].Opt Engng,2004,43(9):2009-2016.
[11]	TAO Sh Q,WANG B,WANG D Y.TWOR scheme for holographic wavelength filters[J].Proc SPIE,2006,6351:63512W1-63512W8.
[12]	WANG B,TAO Sh Q,CHEN J B.Re-investigation on the solution to two-dimensional coupled wave equations for volume holographic gratings[J].Chinese Journal of Laser,2005,32(1):21-25(in Chinese).

The diffractive characteristics at communication wavelengths of volume holographic gratings with the orthogonal readout scheme

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通讯作者: 陈斌, bchen63@163.com

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