Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Wuhan University Journal of Natural Sciences

Digital optical signal amplifier using an Er-doped fiber optical bistable device

Yuancheng Zhang, Jixing Li, Qian Song

Published Mar 1, 1997• 2 citations
Publisher

Abstract

The principle and charecteristics of verious digital optical signal amplifiers using Er-doped fiber optical bistability devices have been discussed. Optical signal gain and its variation with the parameters of the devices with constant or pulse optical bias have been calculated, and the design principle of those devices has been given.
DOI
10.1007/bf02834912

Related papers

Optical Switching and Digital Optical Signal Amplification Using a Fiber Grating OBD

D Cenler

It is proposed that an Er doped fiber bistability device with fiber gratings may be used as an all optical switch or a digital signal amplifier of low power and high speed. And, the device is one dimensionally integratable along the fiber. The operation, characteristics, and parameters of these devices are analysed and calculated to give a design principle.

Chinese Journal of Lasers•Jan 1, 1998•1 citation

Nonlinear optical fiber resonator: Optical fiber bistability

Yuancheng Zhang, Qian Song

The linear and nonlinear charecteristics of verious optical fiber loop resonators have been processed uniformly using transmission matrix method. It is pointed that in nonlinear operation condition each of those optical fiber loop resonators may be used to make an all-optical fiber bistability device. The configuration, charecterictics and threshold of verious Er-doped fiber loop bistability devices have been calculated, analysised and compared, and the design principle of those devices has been given.

Wuhan University Journal of Natural Sciences•Jun 1, 1996•6 citations

Optical switching and digital signal amplification using an optical fiber grating OBD

Qian Song, Yuancheng Zhang

It is proposed that an optical fiber grating bistability device may be used for an all-optical switching or an all-optical digital signal amplifier with low power and high speed. The principle, characteristic and parameter are analysed, and some design ideas are given.

Wuhan University Journal of Natural Sciences•Dec 1, 1997•0 citations

Optical fiber grating bistability

Yuancheng Zhang, Qian Song

It is proposed that a segment of Er-doped fiber with a couple of fiber gratings on the ends may be used as a novel optical bistability device with low power and high speed. Operation and bistability threshold of device are analysed in accordance with the distributed feedback couple-mode theory and the nonlinear characteristic of Er-doped fiber. It is shown that a nanoseconds microwatts bistable operation of a centimeter device is realizable under nowaday technological condition.

Wuhan University Journal of Natural Sciences•Dec 1, 1997•1 citation

Fiber-ring laser with tunable optical bistability

Jiafeng Shao, Qin Shen, Z. J. Wu +3 more

The structure of combining two segments of erbium-doped fiber (EDF) together—one EDF acting as an amplifier and the other as an absorber—has a special gain characteristic curve which has a maximum gain with an increase in the input signal power. This special gain characteristic curve can lead to an optical bistability (OB) phenomenon in a fiber-ring laser employing an EDF of this structure. By adjusting the pump light power injected into the second segment of the EDF, we can change the behavior of the absorber and can, therefore, control the range of the bistability region. A method is proposed to calculate the tunable optical bistability, and the calculation result is in accordance with our experiment.

Laser Physics•Sep 1, 2008•1 citation

Digital Optical Signal Amplifier Using an Er-doped Fiber Optical Bistable Device

Zhang, Yuancheng, Li - +3 more

Wuhan University Journal of Natural Sciences•Jan 1, 1997•1 citation
The linear and nonlinear charecteristics of verious optical fiber loop resonators have been processed uniformly using transmission matrix method. It is pointed that in nonlinear operation condition each of those optical fiber loop resonators may be used to make an all-optical fiber bistability device. The configuration, charecterictics and threshold of verious Er-doped fiber loop bistability devices have been calculated, analysised and compared, and the design principle of those devices has been given.
The structure of combining two segments of erbium-doped fiber (EDF) together—one EDF acting as an amplifier and the other as an absorber—has a special gain characteristic curve which has a maximum gain with an increase in the input signal power. This special gain characteristic curve can lead to an optical bistability (OB) phenomenon in a fiber-ring laser employing an EDF of this structure. By adjusting the pump light power injected into the second segment of the EDF, we can change the behavior of the absorber and can, therefore, control the range of the bistability region. A method is proposed to calculate the tunable optical bistability, and the calculation result is in accordance with our experiment.