Journal ArticleDOI
Photonics in future telecommunications
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TLDR
In this article, the authors examined the extent to which optical signal processing can be brought into use instead of present-day electronic signal processing in such switching elements and several experiments involving OFDM technologies are described which are intended to underline the significance of those technologies for future telecommunication networks.Abstract:
In future telecommunication systems, efforts will be made to exhaust the almost unlimited transmission capacity of optical fibers by applying optical frequency-division-multiplexing (OFDM) techniques. The switching elements of such networks must be able to process OFDM signals as well as time-division-multiplexing (TDM) signals. The extent to which optical signal processing can be brought into use instead of present-day electronic signal processing in such switching elements is examined. Several experiments involving OFDM technologies are described which are intended to underline the significance of those technologies for future telecommunication networks. Various techniques for and experiments on the optical switching of signals in the frequency, space, and time domain are described. Experiments dealing with optical signal regeneration are described. >read more
Citations
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Journal ArticleDOI
Performance evaluation of an optical multi-carrier network using wavelength converters based on FWM in semiconductor optical amplifiers
E. Iannone,Roberto Sabella +1 more
TL;DR: In this article, an analysis of the transmission performance of optical multi-carrier network layer employing wavelength converters based on four wave mixing in semiconductor travelling wave amplifiers is presented.
Journal ArticleDOI
Rearrangeable nonblocking polymer waveguide thermo-optic 4×4 switching matrix with low power consumption at 1.55 µm
TL;DR: In this paper, a rearrangeable nonblocking polymer waveguide thermo-optic 4*4 directional-coupler-type switching matrix with low power consumption operating at 1.55 mu m is demonstrated.
Book ChapterDOI
Optical Fiber Communication Technology And System Overview
TL;DR: Networking applications of optical amplifiers and wavelength division multiplexing are considered, and future directions discussed, and laser relative-intensity-noise and nonlinearities are shown to limit the performance of analog systems.
Journal ArticleDOI
An optical cross-connect system as a high-speed switching core and its performance analysis
Yongdong Jin,Mohsen Kavehrad +1 more
TL;DR: In this paper, the performance of an optical cross-connect based on a proposed architecture as an ultra-high-speed switching core in a switching system is analyzed, through which the factors degrading the performance are identified.
References
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Journal ArticleDOI
The quantum well self-electrooptic effect device: Optoelectronic bistability and oscillation, and self-linearized modulation
David A. B. Miller,Daniel S. Chemla,T. C. Damen,Thomas H. Wood,C. A. Burrus,Arthur C. Gossard,W. Wiegmann +6 more
TL;DR: In this article, the quantum well self-electrooptic effect devices with a CW laser diode as the light source were shown to have bistability at room temperature with 18 nW of incident power, or with 30 ns switching time at 1.6 mW with a reciprocal relation between switching power and speed.
Journal ArticleDOI
140 Mbit/s DPSK transmission using an all-optical frequency convertor with a 4000 GHz conversion range
TL;DR: In this article, a new method of optical frequency conversion was described and demonstrated by a 140 Mbit/s DPSK optical transmission experiment with a fibre-to-fibre efficiency of −10dB.
Journal ArticleDOI
Nonlinear effects in coherent multichannel transmission through optical fibers
TL;DR: In this article, it is shown that for long-haul transmission systems with fiber lengths exceeding 100 km, typical channel separation of 10 GHz, and few channels, the maximum allowed input power per channel, P/sub max/, is limited by SBS (stimulated Brillouin scattering) to about 5 dBm.
Journal ArticleDOI
Decision gate for all-optical data retiming using a semiconductor laser amplifier in a loop mirror configuration
TL;DR: In this article, a decision gate for all-optical data retiming is reported, operating at 1 Gbit/s, the gate is polarisation independent and enables simultaneous wavelength conversion up to 60 nm.
Journal ArticleDOI
Current versus Light-Output Characteristics with No Definite Threshold in pnpn Vertical to Surface Transmission Electro-Photonic Devices with a Vertical Cavity
TL;DR: In this article, surface-emitting laser operation in pnpn structure vertical-to-surface transmission electro-photonic devices (VSTEPs) with a vertical cavity was demonstrated.