نتایج جستجو برای: optical wavelength conversion

تعداد نتایج: 417016  

Journal: :Optics express 2009
P Martelli P Boffi M Ferrario L Marazzi P Parolari R Siano V Pusino P Minzioni I Cristiani C Langrock M M Fejer M Martinelli V Degiorgio

We present the results of an in-depth experimental investigation about all-optical wavelength conversion of a 100-Gb/s polarization-multiplexed (POLMUX) signal. Each polarization channel is modulated at 25 Gbaud by differential quadrature phase-shift keying (DQPSK). The conversion is realized exploiting the high nonlinear chi((2)) coefficient of a periodically poled lithium niobate waveguide, i...

1999
Hiroaki Harai Masayuki Murata Hideo Miyahara

It is true that in all-optical networks, network performance can be improved by wavelength conversion. However, the switching node with wavelength conversion capability is still costly, and the number of such nodes should be limited in the network. In this paper, a performance optimization problem is treated in all-optical networks. We propose a heuristic algorithm to minimize an overall blocki...

Journal: :Optics express 2011
Lin Xu Noam Ophir Michael Menard Ryan Kin Wah Lau Amy C Turner-Foster Mark A Foster Michal Lipson Alexander L Gaeta Keren Bergman

We experimentally demonstrate four-wave-mixing (FWM)-based continuous wavelength conversion of optical differential-phase-shift-keyed (DPSK) signals with large wavelength conversion ranges as well as simultaneous wavelength conversion of dual-wavelength channels with mixed modulation formats in 1.1-cm-long dispersion-engineered silicon waveguides. We first validate up to 100-nm wavelength conve...

Journal: :Optics express 2006
J J Vegas Olmos N Chi G Zervas D Simeonidou S Yu I Tafur Monroy A M J Koonen

We experimentally demonstrate an optical node with time-space-and- wavelength domain contention resolution, deflection and dropping capability. The node is composed of an optical buffer based on an optical crossconnect and a wavelength converter. Although the experimental results are shown at 10 Gbit/s the bitrate can be increased substantially. Bit-error rate measurements are shown, sustaining...

2004
Tushar Tripathi

Absfrcrcf-In this paper, we propose a method to calculate the average blocking probability in all-optical networks using limited-rmge wavelength conversion. Previous works have shown that there is a remarkable improvement in blocking probability while using limited-range wavelength conversion [2], [3] but these analytical models were either for a path [2] or for a mesh-torus network [3]. Using ...

1998
S. Ramamurthy Biswanath Mukherjee

-Consider an optical network which employs wavelength-routing crossconnects that enable the establishment of wavelength-division-multiplexed (WDM) connections between node pairs. In such a network, when there is no wavelength conversion, a connection is constrained to be on the same wavelength channel along its route. Alternate routing can improve the blocking performance of such a network by p...

2017
Minhao Pu Hao Hu Christophe Peucheret Hua Ji Michael Galili Leif K. Oxenløwe Palle Jeppesen Jørn M. Hvam Kresten Yvind

We experimentally demonstrate polarization-insensitive all optical wavelength conversion of a 10-Gb/s DPSK data signal based on four-wave mixing in a silicon waveguide with an angled-pump scheme. Dispersion engineering is applied to the silicon waveguide to obtain similar four-wave mixing conversion performances for both the TE and TM modes. Bit-error rate measurements are performed and error-f...

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