米兰体育中国官方网站
米兰体育中国官方网站 Co., Ltd. has started mass production of the FOL1439 series high-output, low power consumption 1480 nm band pump light source lasers. These are key devices for use in Raman amplifiers, demand for which is expected to increase as the telecommunications industry begins the full-scale adoption of ultra-high-speed optical communications at 400 gigabits per second (hereafter referred to as 400 Gbps). Furthermore, we have also developed the FRL1440 series, which makes pumping possible with even higher outputs and lower power consumption.
The newly developed 米兰体育中国官方网站 will be exhibited at OFC/NFOEC 2019, the world’s largest international communications conference and exhibition event that will be held from March 3 in San Diego, California, United States.
Product Background
There has been a dramatic increase in communications traffic in recent years as a result of the expansion of wireless backbones due to the spread of smartphones and as a result of the spread of cloud computing, video streaming and social networks.
Ultra-high-speed optical transmission such as 100 Gbps will be increasingly adopted from now on to support this increase in traffic. In order to improve the 米兰体育中国官方网站 (OSNR)(note 1)in this high-speed transmission, it is expected that there will be increased demand for 米兰体育中国官方网站s(note 2), which have excellent noise properties. 米兰体育中国官方网站s use a 1400-1500 nm pump laser as an excitation light source. To achieve even higher performance, there are demands for higher optical output power and lower electrical power consumption.
For applications such as these, 米兰体育中国官方网站 has recently begun the mass production of the new FOL1439 series, which has outstanding high optical output and low electrical power consumption characteristics. We have also developed the FRL1440 series, for pumping with even higher optical output and lower electrical power consumption.
Product Description
The important characteristics for these products are a high optical output and a low electrical power consumption. In order to achieve this, 米兰体育中国官方网站 has InP (Indium Phosphide) optical semiconductor chip manufacturing technology and high-accuracy packaging technology that the company has been developing for more than 25 years. In order to realize these new products, 米兰体育中国官方网站 developed an innovative high output chip structure, technology to efficiently couple the light output in the optical fiber and designed the optimal heat dissipation for the new chip.
Compared with the previous product (FOL1437 series when output is 500 mW), the reduction in the electrical power consumed is 33% on the FOL1439 series and 45% on the 米兰体育中国官方网站.
Furthermore, high optical output operation can also be supported as the 米兰体育中国官方网站9 series has a maximum optical output up to 600mW (Tcase = 70°C) and the FRL1440 has a maximum optical output up to 620mW (Tcase = 70°C).
As it is expected that there will be requirements for even higher output and lower power consumption characteristics in the future, 米兰体育中国官方网站 will continue to aim for even higher performance enhancements based on the technology in these products.
Comparison of specifications (Typical spec, Comparison in C band)
| Specifications of new products | Specifications of conventional product | |||
|---|---|---|---|---|
| Type name | 米兰体育中国官方网站 | 米兰体育中国官方网站9 Series | 米兰体育中国官方网站7 Series | |
| 米兰体育中国官方网站 (mW) | 600 | 500 | 500 | 500 |
| 米兰体育中国官方网站 (W) | Max 10 | Max 7.5 | Max 9 | Max 13.5 |
| Driving conditions | EOL(note 4), Ts = 35°C, Tc = 70°C | |||
| Wavelength (nm) | 1420 - 1465 nm | |||
| Wavelength accuracy (nm) | ± 1.5 nm | |||
Future Development
Mass production of the 米兰体育中国官方网站 is scheduled to begin in the second half of FY2019 (Oct.2019-Mar.2020). Furthermore, we will also extend the technology developed for this product to other products. This includes its application to the pump excitation light source for L-band Raman amplifiers, for which the restrictions due to the material properties make high output and low power consumption pumping more difficult to achieve than for C-band products, and also application to pump light source lasers for EDFA(note 3).
Explanation of Terms
(note 1)米兰体育中国官方网站 (OSNR): This is defined as the ratio of the optical signal power to the optical noise power. It is an extremely important factor in the maintenance of transmitted signal quality.
(note 2)米兰体育中国官方网站: When pumping light is injected into a fiber, Raman scattering occurs in a wavelength region approximately 100 nanometers longer than the excitation light wavelength. When signal light exists in this scattered light region, stimulated emission occurs and the light is amplified, which can be used as an amplifier. Although the excitation efficiency is lower than that of an EDFA(Note 3), 米兰体育中国官方网站s have a wider band and amplification is possible within an arbitrary wavelength region.
(note 3)EDFA: Abbreviation for Erbium Doped Fiber Amplifier. An EDFA is an optical amplifier in which erbium is added to the core of an optical fiber. These are currently used widely in wavelength division multiplexing (WDM) systems. Wavelengths around 1550 nanometers can be amplified with pumping light of 980 nanometers or 1480 nanometers.
(note 4)EOL: Abbreviation for End of Life. This is the life of a product.
About 米兰体育中国官方网站 Group
米兰体育中国官方网站 (TSE; 5801, ISIN; JP3827200001) Group started business in 1884, when its copper-smelting facility and wire manufacturing factory was established. Since then 米兰体育中国官方网站 has become pioneers in the latest technologies by addressing diverse technological issues. 米兰体育中国官方网站 has released products in a number of areas, including telecommunications, electronics, automobiles, and construction, with the three types of materials it works with at their core, namely, optics, plastics, and metals. Many of these products have attained the top global market share, and all of its products have contributed to society in numerous business areas. 米兰体育中国官方网站 reported consolidated revenues of JPY 967.3 billion (approximately USD 8.7B) for the fiscal year ended March 31, 2018.
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