Compact and efficient O-band bismuth-doped phosphosilicate fiber amplifier for fiber-optic communications.

Authors:

Sergei V Firstov Aleksandr M Khegai Alexander V Kharakhordin Sergey V Alyshev Elena G Firstova Yan J Ososkov Mikhail A Melkumov Lyudmila D Iskhakova Elena B Evlampieva Alexey S Lobanov Mikhail V Yashkov Alexey N Guryanov

Sci Rep 2020 Jul 9;10(1):11347. Epub 2020 Jul 9.

G.G. Devyatyh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, Nizhny Novgorod, 603600, Russia.

During last decades there has been considerable interest in developing a fiber amplifier for the 1.3-[Formula: see text]m spectral region that is comparable in performance to the Er-doped fiber amplifier operating near 1.55 [Formula: see text]m. It is due to the fact that most of the existing fiber-optic communication systems that dominate terrestrial networks could be used for the data transmission in O-band (1260-1360 nm), where dispersion compensation is not required, providing a low-cost increase of the capacity. In this regard, significant efforts of the research laboratories were initially directed towards the study of the praseodymium-doped fluoride fiber amplifier having high gain and output powers at the desired wavelengths. However, despite the fact that this type of amplifiers had rapidly appeared as a commercial amplifier prototype it did not receive widespread demand in the telecom industry because of its low efficiency. It stimulated the search of novel optical materials for this purpose. About 10 years ago, a new type of bismuth-doped active fibers was developed, which turned out to be a promising medium for amplification at 1.3 [Formula: see text]m. Here, we report on the development of a compact and efficient 20-dB (achieved for signal powers between [Formula: see text] and [Formula: see text] dBm) bismuth-doped fiber amplifier for a wavelength region of 1300-1350 nm in the forward, backward and bi-directional configurations, which can be pumped by a commercially available laser diode at 1230 nm with an output power of 250 mW. The compactness of the tested amplifier was provided by using a depressed cladding active fiber with low bending loss, which was coiled on a reel with a radius of 1.5 cm. We studied the gain and noise figure characteristics at different pump and signal powers. A record gain coefficient of 0.18 dB/mW (at the pump-to-signal power conversion efficiency of above 27[Formula: see text]) has been achieved.

Download full-text PDF	Source
http://dx.doi.org/10.1038/s41598-020-68243-4	DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7347876	PMC

July 2020

Publication Analysis

Top Keywords

amplification [formula

Keyword Occurance

Similar Publications

Stable 5-GHz fundamental repetition rate passively SESAM mode-locked Er-doped silica fiber lasers.

Authors:

Xibao Gao Zhigang Zhao Zhenhua Cong Guanguang Gao Aiguo Zhang Honglong Guo Gang Yao Zhaojun Liu

Opt Express 2021 Mar;29(6):9021-9029

A stable passively mode-locked Er-doped silica fiber laser with a fundamental repetition rate of up to 5 GHz is demonstrated, which, to the best of our knowledge, is the highest repetition rate for 1.5 μm semiconductor saturable absorber mirror (SESAM) mode-locked Er-doped silica fiber (EDF) lasers. A segment of commercially available EDF with a net gain coefficient of 1 dB/cm is employed as gain medium. Read More

View Article and Full-Text PDF

March 2021

Similar Publications

Magnetic field measurement based on a fiber laser oscillation circuit merged with a polarization-maintaining fiber Sagnac interference structure.

Authors:

Jing Tian Yiwu Zuo Meijiang Hou Yang Jiang

Opt Express 2021 Mar;29(6):8763-8769

A compact optical magnetic field sensor based on a fiber laser oscillator circuit merged with a Sagnac loop that contains a polarization-maintaining fiber (PMF) and a magnetostrictive rod is proposed. The combination of the PMF-Sagnac loop and fiber laser oscillation circuit significantly increases the signal-to-noise ratio of the reflection spectrum in the system, which is a mixed spectrum that includes interference fringes and lasers. For the proposed system, an erbium-doped fiber amplifier is used to provide gain, a dispersion compensating fiber is used to compensate for dispersion in the system, a PMF is inserted in the Sagnac loop as a microwave filter, while a section of the PMF is bonded to a magnetostrictive rod to achieve magnetic field sensing. Read More

View Article and Full-Text PDF

March 2021

Similar Publications

Holmium-doped fiber amplifier for pumping a ZnGeP optical parametric oscillator.

Authors:

Lars G Holmen Helge Fonnum

Opt Express 2021 Mar;29(6):8477-8489

We present a holmium-doped all-fiber master oscillator power amplifier (MOPA) system operating at 2108 nm targeting optical frequency conversion applications. The MOPA delivers pulses of 0.52 mJ energy at 10 kHz repetition rate after three amplification stages, with a close to square-shaped temporal profile of 50 ns duration, diffraction-limited beam quality and linear polarization. Read More

View Article and Full-Text PDF

March 2021

Similar Publications

Non-degenerate phase-sensitive amplification scheme using digital dispersion pre-equalization for unrepeated transmission.

Authors:

Shimpei Shimizu Takushi Kazama Takayuki Kobayashi Takeshi Umeki Koji Enbutsu Ryoichi Kasahara Yutaka Miyamoto

Opt Express 2021 Mar;29(6):8451-8461

We experimentally demonstrate an ultra-low-noise pre-amplification using a non-degenerate phase-sensitive amplifier (ND-PSA) with an optically dispersion-unmanaged link. Chromatic dispersion (CD) compensation is required for phase-sensitive amplification after fiber transmission. In the conventional transmitter configuration for ND-PSAs in which phase-conjugated light (idler light) is optically generated, it is necessary to optically compensate for the CD, for example, by using dispersion-compensating fibers. Read More

View Article and Full-Text PDF

March 2021

Similar Publications

Experimental investigation of quasi-static mode degradation in a high power large mode area fiber amplifier.

Authors:

Lianghua Xie Chun Zhang Yu Liu Haokun Li Qiuhui Chu Huaqing Song Wenjie Wu Benjian Shen Min Li Xi Feng Shan Huang Rumao Tao Jianjun Wang Xiaoming Zhang HeYuan Zhu

Opt Express 2021 Mar;29(6):7986-7997

In this work, quasi-static mode degradation in high power fiber amplifiers has been investigated experimentally. An increase of M from 1.3 to 2. Read More

View Article and Full-Text PDF

March 2021

Similar Publications

Search Our Scientific Publications & Authors