Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: May 12, 2026

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Published on: June 2, 2017

Optical fiber amplifiers based on PbS/CdS QDs modified by polymers.

Xiaolan Sun¹, Libin Xie, Wei Zhou

¹The Key Lab of Specialty Fiber Optics and Optical Access Networks, Shanghai University, 200072, Shanghai. xiaolansun@shu.edu.cn

|April 11, 2013

Summary

Optical fiber amplifiers using lead sulfide/cadmium sulfide (PbS/CdS) semiconductor quantum dots (QDs) achieved 8 dB signal gain. These QD-doped amplifiers offer improved thermal stability compared to previous PbS QD versions.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Glass 3D printed Er<sup>3+</sup>/Yb<sup>3+</sup> co-doped microsphere laser for high-temperature applications.

Optics express·2026

Same author

Improved PGC-Arctan-LHP hybrid demodulation algorithm for high-precision weak magnetic sensing.

Optics express·2026

Same author

Multi-plane light conversion-based pump-signal combiner for ring-core fiber amplifiers.

Optics express·2026

Same author

Secure coherent optical communication via QKD-based parallel SHA-256 stream cipher with dual-randomized affine construction.

Optics express·2026

Same author

Whole-body vs. selective head cooling and target temperature strategies for neonatal HIE: a meta-analysis of long-term outcomes.

Frontiers in pediatrics·2026

Same author

Modal decomposition in helical side-core fibers through controlled excitation.

Optics express·2026

Area of Science:

Materials Science
Optoelectronics
Nanotechnology

Background:

Semiconductor quantum dots (QDs) offer tunable optical properties for advanced photonic devices.
Optical fiber amplifiers are crucial components in telecommunications and sensing.
Previous QD-based amplifiers faced challenges with stability and uniform incorporation.

Purpose of the Study:

To develop and demonstrate optical fiber amplifiers utilizing PbS/CdS semiconductor quantum dots.
To investigate the signal gain and thermal stability of these novel QD-doped amplifiers.
To establish a method for uniform and reproducible incorporation of QDs into optical fibers.

Main Methods:

Preparation of well-defined PbS/CdS QDs and an amphiphilic copolymer.
Dispersion of QDs in silica sol using the copolymer for uniform fiber coating via dip-coating.

More Related Videos

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

Related Experiment Videos

Last Updated: May 12, 2026

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Published on: June 2, 2017

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

Simultaneous injection of a 1550 nm signal source and a 980 nm pump source into the fiber coupler.

Evanescent wave excitation for signal amplification.

Main Results:

Achieved a signal gain of up to 8 dB in the 1450-1650 nm wavelength range.
Demonstrated enhanced thermal stability of PbS/CdS QD amplifiers compared to PbS QD amplifiers.
Successfully incorporated QDs uniformly and reproducibly into the silica coating of optical fibers.

Conclusions:

PbS/CdS semiconductor quantum dots are effective gain media for optical fiber amplifiers.
The developed QD-doped fiber amplifiers exhibit significant signal gain and improved thermal performance.
This work presents a viable method for fabricating robust and efficient QD-based optical fiber devices.