Wavelength-encoding/temporal-spreading optical code division multiple-access system with in-fiber chirped moiré gratings.

@article{Chen1999WavelengthencodingtemporalspreadingOC,
  title={Wavelength-encoding/temporal-spreading optical code division multiple-access system with in-fiber chirped moir{\'e} gratings.},
  author={L R Chen and P. W. E. Smith and C. M. de Sterke},
  journal={Applied optics},
  year={1999},
  volume={38 21},
  pages={
          4500-8
        }
}
We propose an optical code division multiple-access (OCDMA) system that uses in-fiber chirped moiré gratings (CMG's) for encoding and decoding of broadband pulses. In reflection the wavelength-selective and dispersive nature of CMG's can be used to implement wavelength-encoding/temporal-spreading OCDMA. We give examples of codes designed around the constraints imposed by the encoding devices and present numerical simulations that demonstrate the proposed concept. 
View on PubMed
ece.jhu.edu
16 Citations
Highly Influential Citations
1
Background Citations
1
Methods Citations
1

Figures and Tables from this paper

16 Citations

Citation Type

Citation Type

Demonstration of incoherent wavelength-encoding/time-spreading optical CDMA using chirped moire gratings
TLDR
A wavelength-encoding/time-spreading optical code-division multiple-access system that uses in-fiber chirped moire gratings for encoding/decoding and the rejection of multiuser interference is demonstrated.
Integrated holographic encoder for wavelength-hopping/time-spreading optical CDMA
We report on the application of an integrated holographic device to the generation of two-dimensional (time-frequency) optical codes for use in optical code-division multiplexing based on wavelength…
Phase encoding and decoding of short pulses at 10 Gb/s using superstructured fiber Bragg gratings
TLDR
A 7-chip, 160-Gchip/s phase-shift keyed code is assigned to short pulses after reflection from a superstructured fiber Bragg grating to encode/decode code required in code-division multiple-access systems and packet-switched networks.
Superimposed fiber Bragg grating simulation by the method of single expression for optical CDMA systems
Superimposed fiber Bragg gratings are very attractive as multiwavelength filters for many applications. Particularly, their spectral parameters can be specially tailored to have different passband…
1.25 Gbit/s transmission of optical FFH-OCDMA signals over 80 km with 16 users
Encoding/decoding of FFH-OCDMA signals from 16 users is performed with Bragg grating arrays. Transmission of the multiplexed signals is demonstrated over 80 km of standard fiber at data rate…
Synthesis of temporal optical waveforms by fiber Bragg gratings: a new approach based on space-to-frequency-to-time mapping
We propose and analyze a new technique for optical pulse shaping that uses fiber Bragg gratings, which overcomes the depletion effects associated with long uniform gratings operating in the…
A 10 Gbit/s, 160 Gchip/s OCDMA coding:decoding system based on superstructured fiber gratings
The area of Optical Code Division Multiple Access (OCDMA) systems has received steadily growing interest in recent years. OCDMA offers a number of attractive features for future local area networks…
Code-division multiple access: novel multiplexing strategy in optical fiber networks
  • D. Meghavoryan, H. Baghdasaryan
  • Business, Physics
    Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)
  • 2001
An analytical review of different fiber-optic code division multiplexing (OCDMA) systems are performed. The progress in fiber-optic CDMA algorithms and future trends in the development of lightwave…
Novel Multicode-Processing Platform for Wavelength-Hopping Time-Spreading Optical CDMA: A Path to Device Miniaturization and Enhanced Network Functionality
TLDR
Several applications are presented where multicode-processing capability can result in significant simplification of node and system architectures and, thus, provide feasible implementation of schemes to obtain enhanced network performance such as security and scalability.
A novel spectral coding technique based on the special chirped fiber Bragg gratings for fiber optic CDMA
  • H. Ku, Sang In Kim, +4 authors S. Song
  • Physics
    Technical Digest. CLEO/Pacific Rim 2001. 4th Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.01TH8557)
  • 2001
A novel spectral coding technique and the algebraic algorithm based on special chirped fiber Bragg grating for fiber optic CDMA application are proposed and demonstrated experimentally for the first…
...
1
2
...

References

SHOWING 1-10 OF 21 REFERENCES
Applications of ultrashort pulse propagation in Bragg gratings for wavelength-division multiplexing and code-division multiple access
We discuss theoretical and experimental studies on the propagation of ultrashort pulses through fiber Bragg gratings. We also consider several applications in optical communications to be found by…
Ultrashort pulse propagation in multiple-grating fiber structures.
TLDR
A multiple-grating fiber structure that decomposes an ultrashort broadband optical pulse simultaneously in both wavelength and time is proposed and can be used to generate a multiwavelength train of pulses for use in wavelength-division-multiplexed systems or to implement frequency-domain encoding of coherent pulses for optical code-division multiple access.
Chirped moire fiber gratings operating on two-wavelength channels for use as dual-channel dispersion compensators
Long continuously chirped moire fiber gratings are demonstrated. Clean, dual-channel operation with dispersion equivalent to 100 and 200 km of standard fiber is shown from gratings of lengths 35.1 cm…
Passive optical fast frequency-hop CDMA communications system
TLDR
It is shown that an optical FFH-CDMA system requires new design criteria for code families, as optical device technology differs significantly from that of radio frequency communications.
Femtosecond encoder-decoders and ultrafast nonlinear thresholders and their integration in a femtosecond code division multiple access communication system test-bed
This paper reports comprehensive experimental results on a femtosecond code-division multiple-access (CDMA) communication system test bed operating over optical fiber in the 1.5 /spl mu/m…
Photonic code-division multiple-access communications
Abstract Photonic code-division multiple access schemes have been proposed since the 1970s. Although there are many published proposals for new coding schemes, there are many less experimental…
Optical Fiber Code Division Multiple Access Networks: A Review
TLDR
A comparative analysis is performed illustrating the issues which still have to be addressed before CDMA becomes a viable technique for optical fiber multiple access networks.
Wavelength hopping/time spreading code division multiple access systems
An incoherent optical code division multiple access (CDMA) concept using a combination of wavelength hopping and time spreading is introduced employing prime-hop sequences, which feature an…
Investigation of fiber grating-based performance limits in pulse stretching and recompression schemes using bidirectional reflection from a linearly chirped fiber grating
We demonstrate the controlled stretching and recompression of ultrashort optical pulses using bidirectional reflection from both ends of a single linearly chirped fiber grating. We identify operating…
Demonstration of a simple CDMA transmitter and receiver using sampled fibre gratings
TLDR
This work provides a simple encoding/decoding solution, applicable to optical CDMA networks, using a short pulse reflected off a single sampled fibre grating as a transmitter and a second sampled fibregrating with a photodiode as a receiver.
...
1
2
3
...