Two-fiber optical channel shared protection ring with 4×4 thermal-optic switches

2002 ◽  
Author(s):  
M.J. Li ◽  
D.J. Tebben ◽  
M.J. Soulliere ◽  
S. Hilbert ◽  
M. Zhao ◽  
...  
Keyword(s):  
Optical Channel ◽  
Shared Protection ◽  
Fiber Optical ◽  
Thermal Optic

scholarly journals Accuracy Assessment of Nondispersive Optical Perturbative Models through Capacity Analysis

Entropy ◽  
2019 ◽  
Vol 21 (8) ◽  
pp. 760 ◽  
Author(s):  
Kamran Keykhosravi ◽  
Giuseppe Durisi ◽  
Erik Agrell
Keyword(s):  
Data Transmission ◽  
Continuous Time ◽  
Single Channel ◽  
Accuracy Assessment ◽  
Optical Channel ◽  
Capacity Analysis ◽  
Physical Channel ◽  
Fiber Optical ◽  
Simplifying Assumptions ◽  
Discrete Time Models

A number of simplified models, based on perturbation theory, have been proposed for the fiber-optical channel and have been extensively used in the literature. Although these models are mainly developed for the low-power regime, they are used at moderate or high powers as well. It remains unclear to what extent the capacity of these models is affected by the simplifying assumptions under which they are derived. In this paper, we consider single-channel data transmission based on three continuous-time optical models: (i) a regular perturbative channel, (ii) a logarithmic perturbative channel, and (iii) the stochastic nonlinear Schrödinger (NLS) channel. To obtain analytically tractable discrete-time models, we consider zero-dispersion fibers and a sampling receiver. We investigate the per-sample capacity of these models. Specifically, (i) we establish tight bounds on the capacity of the regular perturbative channel; (ii) we obtain the capacity of the logarithmic perturbative channel; and (iii) we present a novel upper bound on the capacity of the zero-dispersion NLS channel. Our results illustrate that the capacity of these models departs from each other at high powers because these models yield different capacity pre-logs. Since all three models are based on the same physical channel, our results highlight that care must be exercised in using simplified channel models in the high-power regime.

Parasitic element influence on laser driver performances for 1.3 μm fiber optical communication

1993 ◽  
Vol 3 (9) ◽  
pp. 1751-1759 ◽  
Author(s):  
N. Hassaine ◽  
K. Sauv ◽  
A. Konczykowska ◽  
R. Lefevre
Keyword(s):  
Optical Communication ◽  
Parasitic Element ◽  
Laser Driver ◽  
Fiber Optical ◽  
Fiber Optical Communication

Modelling Light Transmission in a Fiber-Optical Reflection System

2004 ◽  
Vol 9 (1) ◽  
pp. 55-63
Author(s):  
V. Kleiza
Keyword(s):  
Optical Sensors ◽  
Light Transmission ◽  
External Cavity ◽  
Linear Displacement ◽  
Fiber System ◽  
Light Emitting ◽  
Optical Media ◽  
Reflected Light ◽  
Fiber Optical ◽  
Fiber Optical Sensors

Light transmission in the reflection fiber system, located in external optical media, has been investigated for application as sensors. The system was simulated by different models, including external cavity parameters such as the distance between light emitting and receiving fibers and mirror positioning distance. The sensitivity to a linear displacement of the sensors was studied as a function of the distance between the tips of the light emitting fiber and the center of the pair reflected light collecting fibers, by positioning a mirror. Physical fundamentals and operating principles of the advanced fiber optical sensors were revealed.

A Markov-Based Satellite-to-Ground Optical Channel Model and Its Effective Coding Scheme

2012 ◽  
Vol E95-B (1) ◽  
pp. 254-262
Author(s):  
Yoshitoshi YAMASHITA ◽  
Eiji OKAMOTO ◽  
Yasunori IWANAMI ◽  
Yozo SHOJI ◽  
Morio TOYOSHIMA ◽  
...  
Keyword(s):  
Channel Model ◽  
Optical Channel ◽  
Coding Scheme
Sign in / Sign up

Export Citation Format

Share Document