News

February 20, 2026
BB Backbone Corp.

BB Backbone Corp. (“BB Backbone”; President, CEO, and CISO: Naoki Yamamoto; Head Office: Minato-ku, Tokyo) in collaboration with BBIX, Inc.(“BBIX”; President and CEO: Hideyuki Sasaki; Head Office: Minato-ku, Tokyo) and Ciena Communications Japan G.K (“Ciena”; Representative Executive Officer and President: Anthony Guercio; Head Office: Chiyoda-ku, Tokyo), has successfully achieved 1.6 Tbps long-distance transmission using a commercial network.
In this verification, high-capacity transmission was achieved with a bandwidth of 225 GHz using Ciena's WaveLogic 6 Extreme (WL6e) transponders in an Alien Wavelength (third-party signal) connectivity configuration.
Going forward, we will advance research to provide services tailored to customer usage patterns.

■Background
Supports Alien Wavelength (AWL) connectivity and has completed connection verification with a wide range of transponders. As communication capacity continues to increase, to enable even higher-capacity transmission, BB Backbone conducted this verification to confirm the practicality of Ciena's new high-capacity WL6e transponders.

■ Overview of the Verification
Using a test configuration (Figure 1) on the B³ Spectrum network connecting data centers in Tokyo and Shirakawa, Fukushima, transmission tests were conducted using the Waveserver platform equipped with Ciena WL6e transponders (Figure 2). These tests simulated actual operations in an environment where adjacent wavelengths were present.
Quality measurements were performed through RFC 2544 testing (Frame Loss and Latency tests) and extended BER (Bit Error Rate) testing. These tests confirmed that there were no issues with transmission quality and that long-distance transmission at 1.6 Tbps per wavelength (1.6Tλ) is feasible. Additionally, waveform analysis using a spectrum analyzer confirmed stable, high-quality transmission with no interference between adjacent wavelengths.

(Figure 1) Test configuration using the B³ Spectrum network

(Figure 2) Waveserver equipped with WaveLogic 6 Extreme transponders

■Future Outlook
BB Backbone will continue to promote user-first development, verification, and service delivery. By leveraging the cost advantages of "B³ Spectrum," the company aims to enable more customers to build efficient and cost-effective networks.

■BB Backbone
Company Name: BB Backbone Corp.
Headquarters Address: 1-7-1 Kaigan, Minato-ku, Tokyo
Representative: Naoki Yamamoto, President, CEO, and CISO
URL: https://www.bbbackbone.co.jp/en_index/

■About BBIX
Company Name: BBIX, Inc.
Headquarters: 1-7-1 Kaigan, Minato-ku, Tokyo
Representative: Hideyuki Sasaki, President and CEO
URL: https://www.bbix.net/en/

■About Ciena
Company Name: Ciena Communications Japan G.K.
Headquarters: Pacific Century Place Marunouchi, 26F, 1-11-1 Marunouchi, Chiyoda-ku, Tokyo
Representative: Anthony Guercio, President and Representative Executive Officer
URL: https://www.ciena.com/

For any inquiries, please feel free to contact below.
BB Backbone Corp.
TEL: 03-6889-1255
Email: b3-sales-team@g.bbbackbone.co.jp