Achieved a 19 dBm High Output of the Ultra-small, Narrow Linewidth Tunable Light Source for Optical Digital Coherent Communications.

By increasing optical output power 和 reducing linewidth, we realized progress toward early implementation of the next-generation st和ard 800ZR

古川电机株式会社.有限公司. (总部:大手町2-6-4, Chiyoda-ku, Tokyo; President: Hideya Moridaira) has achieved a 19dBm (approx. 80mW) optical output power from the ultra-small, narrow linewidth tunable light source, a laser product used as a light source in optical digital coherent communications (无花果. 1).

• Increased optical output power by 27% to 19dBm by optimizing the drive conditions 和 increasing the laser chip efficiency
• Along with increasing the optical output power, 实现了150kHz的线宽, which is important for digital coherent communications

The new product will be displayed at OFC 2024, scheduled to be held in the United States, 和 plan to begin shipping samples in June 2024.

Background

Following the recent appearance of generative AI (Artificial Intelligence) 和 machine learning, data traffic at data centers 和 other locations has exploded globally, 和 it is expected to grow further in the future. 为了应对这种情况, progress is being made toward the introduction of 800G ultra-high speed transmission systems using optical digital coherent communications. The next-generation telecommunications st和ard 800ZR (Note 1), there are expectations for increased optical output power from the narrow linewidth tunable light source 和 other developments.

Details

By optimizing the waveguide design with our crystal growth, precision optical semiconductor processing, 和 other laser manufacturing technology accumulated over the past 20 years, we succeeded in increasing the optical output power from the narrow linewidth tunable light source. Compared to the existing product’s optical output power of 18dBm (approx. 63mW), it was possible to increase the optical output power by 27% to 19dBm (approx. 80 mw)(无花果. 2) by optimizing the drive conditions 和 increasing the laser chip efficiency. Along with increasing the optical output power, we 实现了150kHz的线宽, which is important for digital coherent communications (Table 1). Increasing the optical output power 和 reducing the linewidth will contribute to progress toward the early implementation of 800ZR, as well as increased performance through the use of products designed under the existing 400ZR st和ard.

We will exhibit this new product at OFC 2024 scheduled to be held on March 26-28, 2024, 在圣地亚哥(OFS展位#2041), 和 plan to begin shipping samples in June 2024.

离岸金融中心2024: http://www.ofcconference.org/en-us/home/

展望未来, we will continue to achieve further advances in optical lasers 和 contribute to the establishment of socially 和 environmentally friendly networks that support the progress of the telecommunications society.

Table 1 Comparison with the existing product

(Note 1) The st和ard set forth by the industry association OIF (The Optical Internetworking. Forum) for transmission distance exceeding 80km 和 data transmission speed of 800 Gb/s. 目前的标准是400ZR.

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FEC公关联系人
Murakoshi, Public Relations Department
古川电机株式会社.有限公司.
选举委员会.pub@古河道electric.com