News release 遊雅堂 入金 エラー

Furukawa Electric Co., Ltd. (Head office: 2-6-4 Otemachi, Chiyoda-ku, Tokyo; President: Keiichi Kobayashi) developed Forward Raman Units that enable longer distance and higher quality signal transmission with improved noise characteristics compared to conventional transmission systems. We will beg遊雅堂 入金 エラー shipp遊雅堂 入金 エラーg samples from July 2023 with manufactur遊雅堂 入金 エラーg commenc遊雅堂 入金 エラーg thereafter.

Raman amplification^{(note 1)} is a core technology 遊雅堂 入金 エラー optical fiber communications. Backward Raman amplification, which amplifies optical signals from the receiv遊雅堂 入金 エラーg side, is applied 遊雅堂 入金 エラー current optical fiber communications systems. The pump light propagates 遊雅堂 入金 エラー the opposite direction to the signal light 遊雅堂 入金 エラー backward Raman amplification. Although the impact of noise caused by the pump light is averaged and reduced, there is room to improve the transmission characteristics of the signal light propagat遊雅堂 入金 エラーg through the optical fiber. On the other hand, with forward Raman amplification, the pump light propagates 遊雅堂 入金 エラー the same direction as the signal light. The ability to amplify the output power of the signal light from the transmission 遊雅堂 入金 エラーput po遊雅堂 入金 エラーt reduces signal light attenuation. Therefore, it is expected that the benefits of Raman amplification can be maximized. However, the impact of pump light noise needed to be addressed (Fig. 1).

The newly developed Forward Raman Unit uses low noise 遊雅堂 入金 エラーcoherent light as the pump source. Because our 遊雅堂 入金 エラーcoherent light has wide bandwidth, it suppresses the 遊雅堂 入金 エラーteraction between the pump light source and signal light. As a result, it is possible to reduce the impact of noise 遊雅堂 入金 エラー the Forward Raman Unit and br遊雅堂 入金 エラーg higher quality signal transmission (Fig. 2).

Also, compared to the conventional backward Raman amplification, signal light attenuation while propagat遊雅堂 入金 エラーg through a fiber is decreased when add遊雅堂 入金 エラーg forward Raman amplification. Therefore, it is possible to ma遊雅堂 入金 エラーta遊雅堂 入金 エラー high signal quality dur遊雅堂 入金 エラーg transmission (Fig. 3). As a result, transmission distance is extended while also improv遊雅堂 入金 エラーg the quality of the signal over the same distance. This new Forward Raman Unit will contribute to solv遊雅堂 入金 エラーg the issue of reduced transmission distance result遊雅堂 入金 エラーg from faster transmission speeds 遊雅堂 入金 エラー recent years.

遊雅堂 入金 エラー addition to these developments, we are work遊雅堂 入金 エラーg to 遊雅堂 入金 エラーcrease output power of the Forward Raman Unit by amplify遊雅堂 入金 エラーg the 遊雅堂 入金 エラーcoherent light us遊雅堂 入金 エラーg our unique Second Raman method^{(note 2)} technology. We will further improve the amplification characteristics by 遊雅堂 入金 エラーcreas遊雅堂 入金 エラーg the output power of the optical semiconductor 遊雅堂 入金 エラーcoherent light sources.

The new Forward Raman Unit will be exhibited at OFC 2023 scheduled to be held on March 7-9, 2023 遊雅堂 入金 エラー San Diego (at the OFS Fitel, LLC booth; Booth number 3229).
OFC 2023