Expansion of channel number in optical demultiplexer using cascaded photopolymer volume gratings

An, Jun Won; Dung, Duc; Kim, Nam; Lee, Kwon Yeon

doi:10.1109/lpt.2006.871698

Cited by 11 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The technologies used are: thin-film filters, arrayed waveguide gratings, fiber Bragg gratings, free-space diffraction gratings and the integrated holographic Bragg reflector [10]. Among the technologies mentioned above, free-space diffraction gratings have shown great potential due to their compactness, high performance and low cost [11,12]. In this same context, multichannel information processing techniques also are being widely implemented by using AOMs [4].…”

Section: Introductionmentioning

confidence: 99%

An experimental distribution of analog and digital information in a hybrid wireless visible light communication system based on acousto-optic modulation and sinusoidal gratings

Colin

García-Juárez

Zaldívar-Huerta

et al. 2016

J. Opt.

View full text Add to dashboard Cite

In this paper we propose a photonic architecture as an alternative tool to distribute point to multipoint analog and digital information over a hybrid wireless visible optical communication system. The experimental set-up is composed of a red laser pointer, an acousto-optic modulator, a sinusoidal grating and a photo-detector array. By using a simple and variable interferometric system, diffraction gratings with different spatial frequencies are generated and recorded on a photoemulsion which is composed of vanilla with dichromate gelatin. Analog video and digital information are first transmitted and recovered over a wireless communication system using a microwave carrier at 4.52 GHz which is generated by distributed feedback lasers operating in the low laser threshold current region. Separately, the recovered video information and digital data are combined with a radio frequency signal of 80 MHz, obtaining a subcarrier of information that is imposed on the optical carrier of the pointer laser using an acousto-optic modulator which is operated with an angle of incident light that satisfies the Bragg condition. The modulated optical carrier is sent to a sinusoidal grating, the diffraction pattern is photo-detected using an array of PIN photo-detectors. The use of sinusoidal gratings with acousto-optic modulators allows that number of channels to be increased when both components are placed in cascade.

show abstract

Section: Introductionmentioning

confidence: 99%

An experimental distribution of analog and digital information in a hybrid wireless visible light communication system based on acousto-optic modulation and sinusoidal gratings

Colin

García-Juárez

Zaldívar-Huerta

et al. 2016

J. Opt.

View full text Add to dashboard Cite

show abstract

“…Several technologies are used to carry out wavelength separation for demultiplexing a composite signal. Very common technologies are thin film filters, arrayed waveguide grating (AWG) [4], fiber Bragg grating (FBG), free space diffraction grating [5][6][7]. FBGs based on diffraction have been used to constitute multichannel Mux/DeMux devices, in which all discrete filters must be cascaded in a serial manner.…”

Section: Introductionmentioning

confidence: 99%

“…To investigate the possible use of DPMG, the volume grating in optical interconnect is replaced by Dynamic Phase Modulated Grating. To analyze the variation of polarization dependence loss with recording angle, Equa-tions(3) and(4) are modified in accordance with Equation(5).Polarization dependence loss for such DPMG for P and S polarization can be found as…”

mentioning

confidence: 99%

Optimization of Diffraction Efficiency and Polarization Dependence Loss in Photopolymer Grating for Use in Multichip Module

Sahu¹,

Achary²,

Tripathy³

2012

JMP

View full text Add to dashboard Cite

We in this paper propose a model to increase the diffraction efficiency of a holographic grating at 1550 nm for multiplexing application. To use such a grating, polarization dependence loss is introduced analytically and then optimized for its minimum value A configuration of holographic grating is proposed based on both maximum diffraction efficiency and minimum polarization dependence loss. The proposed grating is expected to find importance in optoelectronic multichip module

show abstract

Expansion of the channel number in spectral beam combining of fiber lasers array based on cascaded gratings

Chu¹,

Zhao²,

Shi³

et al. 2008

Optics Communications

View full text Add to dashboard Cite

Expansion of channel number in optical demultiplexer using cascaded photopolymer volume gratings

Cited by 11 publications

References 7 publications

An experimental distribution of analog and digital information in a hybrid wireless visible light communication system based on acousto-optic modulation and sinusoidal gratings

An experimental distribution of analog and digital information in a hybrid wireless visible light communication system based on acousto-optic modulation and sinusoidal gratings

Optimization of Diffraction Efficiency and Polarization Dependence Loss in Photopolymer Grating for Use in Multichip Module

Expansion of the channel number in spectral beam combining of fiber lasers array based on cascaded gratings

Contact Info

Product

Resources

About