Related Experiment Video
Updated: Jul 6, 2025
09:39
In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
Published on: May 27, 2013
12.4K
High bismuth-doped germanosilicate fiber for efficient E + S-band amplification
Optics Letters
|January 9, 2024
Summary
This study presents a novel bismuth-doped germanosilicate fiber (BGSF) amplifier, achieving record high gain. The new fiber enables efficient E+S-band amplification for advanced optical systems.
Area of Science:
- Optical Engineering
- Materials Science
- Telecommunications
Background:
- Bismuth-doped germanosilicate fiber (BGSF) is crucial for fiber amplifiers.
- High bismuth concentration is key for enhanced performance.
- E+S-band amplification is vital for modern optical networks.
Purpose of the Study:
- To develop a high-concentration BGSF for efficient E+S-band amplification.
- To characterize the optical properties of the novel BGSF.
- To demonstrate a record-breaking fiber amplifier using the developed BGSF.
Main Methods:
- Modified Chemical Vapor Deposition (MCVD) process for BGSF fabrication.
- High bismuth concentration of 0.075 wt. % achieved.
- Characterization of small signal absorption (SSA) and unsaturated loss (UL) at 1310 nm.
Main Results:
- Achieved high-efficiency E+S-band amplification.
- SSA of 1.32 dB/m and UL of 0.11 dB/m at 1310 nm.
- Demonstrated a 45 m BGSF amplifier with a maximum gain of 39.24 dB and noise figure (NF) of 6.2 dB at 1430 nm.
Conclusions:
- The developed BGSF offers superior performance for fiber amplifiers.
- The novel BGSF enables record-breaking amplification efficiency.
- This advancement is significant for telecommunications and optical sensing applications.
