Achieves 800mW output with a pump laser for C-band Raman amplifiers

Achieves 800mW output with a pump laser for C-band Raman amplifiers

– Beginning of sample deliveries of the FRL1441 series pump laser with 700 mW optical output –

*Achieves 800mW output with low power consumption of around 16W with pump laser for C-band Raman amplifiers

*Started sample shipments of a pump laser for Raman amplifiers that applies this technology to achieve a peak optical output of 700mW

*By increasing the efficiency of the pump laser, a key device for Raman amplifiers, contributes to the development of high-capacity communication networks with a transmission speed exceeding 800 Gbps and even reaching 1.6 Tbps

Furukawa Electric Co., Ltd. (Headquarters: 2-6-4 Otemachi, Chiyoda-ku, Tokyo; President: Keiichi Kobayashi) has achieved an output of 800 mW with a low power consumption of about 16 W with a pump laser for C-band Raman amplifiers. By applying this technology, we have developed the FRL1441 series pump laser (Fig. 1 ) for Raman amplifiers which has a peak optical output of 700 mW. We started sample shipments of this pump laser in August of this year.

Background

Aiming to increase the capacity of medium and long distance optical communication networks, which is essential for the practical implementation of 5G, the technological development is progressing towards an increase in the transmission speed from the current 100-400 Gbs to 800 Gbs. Gbps and even 1.6 Tbps in the future. These faster transmission speeds require high performance Raman amplifiers to supplement OSNR (optical signal to noise ratio, note 1) degradation on the receive side of the signal.

In 1989, NTT announced the world’s first optical amplifier using a solid-state light source (light source optical output was 40 mW, note 2). Since, for more than 20 years, Electric Furukawa contributed to advances in optical communication as a leading manufacturer of pump lasers, a key component of Raman amplifiers. To date, we have delivered a pump laser for C-band with a peak optical output of 600mW, and we have continued to work towards achieving higher output performance.

Details

Using InP (Indium Phosphide, note 3) semiconductor chip technology and optical module assembly technology accumulated over the years, we have achieved 800mW peak output with pump laser for amplifiers Raman (Fig. 2). In this new development, we have increased the efficiency by optimizing the cavity length of the semiconductor laser chip and the structure of the active layer and also achieved high optical coupling efficiency to the optical fiber, which is an important technology in laser pump assembly. Using this technology, we have developed the FRL1441 series pump laser for Raman amplifiers which has a peak optical output of 700mW and started sample shipments of this pump laser in August this year.

This new development is expected to improve OSNR in long distance transmission following further increases in baud rate and data volume, as well as lead to smaller Raman amplifiers and higher pump laser power consumption. low (by 37% compared to existing systems). Electric Furukawa pump lasers) by reducing the number of pump lasers used in current systems (for example, reducing the number of pump lasers for the same wavelength from 2 to 1). In the future, we will continue development aimed at achieving increased performance and work towards the commercialization of a pump laser with an optical output greater than 800 mW.

Current development results will be announced on October 18 at ISLC (International Conference on Semiconductor Lasers) in City of MatsueShimane Prefecture.

As a leading laser company,Electric Furukawa will continue to research, develop and market high performance solid-state laser light sources and contribute to the realization of a truly prosperous and sustainable society through advances in optical communication.

Main Features Model Series FRL1441 Optical Output (mW) 800 700 600 500 Power Consumption (W) Typ.16 Max.14 Max.10 Max.6 Drive Conditions Ts=35°C?Tc=70°C(EOL) Band bandwidth C- band

(note 1)OSNR (Optical Signal to Noise Ratio): Parameter that indicates the signal to noise ratio

(note 2)Appl. Phys. Lett. 54, 295 (1989), 295 Efficient Er3+-optical fiber amplifier pumped by a 1.48 um InGaAsP laser diode, IEICE PIONEERS WEBINAR series no.1, EDFA “A Long Adventuresome Trip” by Masataka Nakazawa and others

(note 3)InP (Indium Phosphide): a III-V compound semiconductor used in the manufacture of laser diode chips and high-speed transistors

Furukawa Electric Group efforts towards the SDGs

Based on “Sustainable Development Goals (SDGs)” adopted by the The United Nations, Furukawa Electric Group formulated the “Furukawa Electric Group Vision 2030” which sets the year 2030 as the goal and advances efforts to “Build a sustainable world and make people’s lives safe, peaceful and fulfilling, Furukawa Electric Group will create solutions for the next generation of global infrastructure combining information, energy and mobility. » Towards the achievement of our 2030 Vision, we will adopt open, agile and innovative approaches to promote ESG management that aims to increase the value of the company in the medium and long term. in the long term and will contribute to the achievement of the SDGs.

Furukawa Electric Group efforts towards the SDGs Back to the list of press releases

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