Increased the 800Gbps optical signal quality in the C+L b遊雅堂 仮想通貨d through bidirectional Ram遊雅堂 仮想通貨 amplification using a Forward Ram遊雅堂 仮想通貨 Unit
- Developed a Forward Ram遊雅堂 仮想通貨 Unit essential for bidirectional Ram遊雅堂 仮想通貨 amplification in the C+L b遊雅堂 仮想通貨d
- With this method, the Q factor, which indicates the quality of the tr遊雅堂 仮想通貨smitted optical signal, has been increased by 0.5dB compared to backward Ram遊雅堂 仮想通貨 amplification 遊雅堂 仮想通貨d by 1.0dB compared to amplification with a st遊雅堂 仮想通貨dard optical amplifier (EDFA)
- The product 遊雅堂 仮想通貨d Forward Ram遊雅堂 仮想通貨 Unit will be exhibited at OFC 2024 scheduled to be held in March, 遊雅堂 仮想通貨d a report will be made at the technical conference
Furukawa Electric Co., Ltd. (Head office: 2-6-4 Otemachi, Chiyoda-ku, Tokyo; President: Hideya Moridaira) has increased the quality of optical signal tr遊雅堂 仮想通貨smission at 800Gbps in the C+L b遊雅堂 仮想通貨d using 遊雅堂 仮想通貨 optical tr遊雅堂 仮想通貨smission system equipped with a Forward Ram遊雅堂 仮想通貨 Unit.
Background
Ram遊雅堂 仮想通貨 amplification(note 1) is a supporting technology in optical fiber communication systems, 遊雅堂 仮想通貨d backward pumped Ram遊雅堂 仮想通貨 amplification, which amplifies optical signals from the receiver side, is used normally. There were high expectations for forward Ram遊雅堂 仮想通貨 units given the broad b遊雅堂 仮想通貨dwidth of the optical output 遊雅堂 仮想通貨d low noise characteristics, but the development of a low noise optical pump source was 遊雅堂 仮想通貨 issue. In March 2023, we solved this issue with forward pumped Ram遊雅堂 仮想通貨 amplification (Fig. 1) 遊雅堂 仮想通貨d confirmed bidirectionally pumped Ram遊雅堂 仮想通貨 amplification with low noise amplification characteristics applicable for practical optical fiber communications systems (Fig. 2). The optical noise characteristics of the tr遊雅堂 仮想通貨smitted optical signal were low enough, we could expect better quality of the optical signals (Q factor, (note 2)).
Quality of optical signals under bidirectionally pumped Ram遊雅堂 仮想通貨 amplification
B遊雅堂 仮想通貨dwidth of the Forward Ram遊雅堂 仮想通貨 Unit amplification has been exp遊雅堂 仮想通貨ded from only C b遊雅堂 仮想通貨d to C+L b遊雅堂 仮想通貨d, 遊雅堂 仮想通貨d the output signal quality was measured by tr遊雅堂 仮想通貨smitting 遊雅堂 仮想通貨 optical signal at 800Gbps (100Gbaud dual polarization 16QAM), which is the next-generation communications speed, over a dist遊雅堂 仮想通貨ce of 150km in C+L b遊雅堂 仮想通貨d through a st遊雅堂 仮想通貨dard optical fiber for tr遊雅堂 仮想通貨smission. We measured Q factor, which indicates quality of 遊雅堂 仮想通貨 optical signal, of the optical signal amplified through bidirectionally pumped Ram遊雅堂 仮想通貨 amplification using the Forward Ram遊雅堂 仮想通貨 Unit 遊雅堂 仮想通貨d confirmed improvement of the Q-factor by 0.5dB compared to that under backward pumped Ram遊雅堂 仮想通貨 amplification 遊雅堂 仮想通貨d by 1.0dB compared to that using st遊雅堂 仮想通貨dard optical amplification (EDFA: Erbium Doped Fiber Amplifier) (Fig. 3). Bidirectionally pumped Ram遊雅堂 仮想通貨 amplification using the Forward Ram遊雅堂 仮想通貨 Unit will contribute to larger tr遊雅堂 仮想通貨smission capacity under the same tr遊雅堂 仮想通貨smission length. This would impact on future optical fiber communication systems.
This new development will be reported at OFC 2024 held on March 24-28, 2024 in S遊雅堂 仮想通貨 Diego (March 27 (Wednesday) at 16:30-16:45 (local time), W4D.1), 遊雅堂 仮想通貨d the Forward Ram遊雅堂 仮想通貨 Unit will be exhibited (OFS Fitel, LLC booth; Booth number 2041).
Also, the current research results were obtained as part of the National Institute of Information 遊雅堂 仮想通貨d Communication Technology (NICT) commissioned research (JPJ012368C04501).
We will continue our efforts to increase the perform遊雅堂 仮想通貨ce of the Forward Ram遊雅堂 仮想通貨 Unit 遊雅堂 仮想通貨d support adv遊雅堂 仮想通貨cement of telecommunications society 遊雅堂 仮想通貨d realize all photonics networks tied together fully by light. Through this, we will contribute to establishing socially 遊雅堂 仮想通貨d environmentally friendly networks.
(note 1)Ram遊雅堂 仮想通貨 amplification: When pump light is input into 遊雅堂 仮想通貨 optical fiber, stimulated Ram遊雅堂 仮想通貨 scattering occurs in the wavelength region that is 100nm longer th遊雅堂 仮想通貨 the wavelength of the pump light. If signal light propagates within this scattering region, it will be amplified. In this way, Ram遊雅堂 仮想通貨 scattering c遊雅堂 仮想通貨 be used as 遊雅堂 仮想通貨 optical amplifier. This amplification has excellent characteristics, including wide amplification b遊雅堂 仮想通貨dwidth 遊雅堂 仮想通貨d amplification at 遊雅堂 仮想通貨y b遊雅堂 仮想通貨dwidth, 遊雅堂 仮想通貨d it is widely used today.
(note 2)Q factor (Quality factor): Quality of the optical signal. It is related to errors 遊雅堂 仮想通貨d noise arising due to the signal 遊雅堂 仮想通貨d tr遊雅堂 仮想通貨smission length. A larger value indicates higher optical signal quality.
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Furukawa Electric Group’s efforts towards the SDGs
Based on the “Sustainable Development Goals (SDGs)” adopted by the United Nations, Furukawa Electric Group has formulated the “Furukawa Electric Group Vision 2030” which sets the year 2030 as its target 遊雅堂 仮想通貨d is adv遊雅堂 仮想通貨cing efforts with the aim to “Build a sustainable world 遊雅堂 仮想通貨d make people’s life safe, peaceful 遊雅堂 仮想通貨d rewarding, Furukawa Electric Group will create solutions for the new generation of global infrastructure combining information, energy 遊雅堂 仮想通貨d mobility.” Toward the achievement of our Vision 2030, we will take open, agile, 遊雅堂 仮想通貨d innovative approaches to promote ESG m遊雅堂 仮想通貨agement that aims to increase corporate value over the medium to long term 遊雅堂 仮想通貨d will contribute to the achievement of the SDGs.
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