Kyocera develops industry's first crystal etalon filter

KYOTO, JAPAN: Kyocera Corp. has developed a crystal etalon filter, a component in optical telecommunications systems for large-volume data transmission, that prevents dense wavelengths of light from interfering with each other by sensing deviations between multiple wavelengths.

This is the industry's first crystal etalon filter that allows users to select a wavelength temperature coefficient within the range of 5.4 to 15.7pm/ C*1. From October 1, Kyocera will offer samples of this product in two temperature coefficient types (5.4pm/ C and 15.7pm/ C).

With the Internet's rapid expansion in recent years and the drastic increase in volume of information transfer from the exchange of large-volume data such as movies, optical telecom now face demand for handling a greater volume at a higher speed.

The WDM*2 transmission system, with its capacity to send more optical signals (information) per single optical fiber, is becoming the mainstream method of meeting such demands. Tunable laser modules are developed in a range of configurations to further increase optical signals, leading to the need for crystal etalon filters, which possess wavelength temperature coefficient ranging from low to high and are optimal for any configuration.

The new product was created by Kyocera Kinseki — a wholly-owned subsidiary of Kyocera engaged in the development and manufacturing of crystal devices — with the company's advanced technology for analyzing at sub-pm levels (1×10-12 meters or smaller), data on optical characteristics accumulated over years of research, and its technology for developing high-definition, high-quality synthetic crystals.

With the development of this new product, for the first time in this industry, a crystal etalon filter is able to assign arbitrary figures as a wavelength temperature coefficient ranging from 5.4 to 15.7pm/ C.

This development enables more flexibility in designing tunable laser modules capable of increasing optical signals emitted, while contributing to higher precision, and better wavelength stability and reliability.

KYOCERA establishes new sales company in India

KYOTO, JAPAN: Kyocera Corp. announced the establishment of KYOCERA Asia Pacific India Private Ltd (KAPI) — a new Kyocera Group sales company that has been positioned to cohesively strengthen components sales in the continually expanding Indian market.

KAPI, which is to start operations on August 1, is a wholly-owned subsidiary of KYOCERA Asia Pacific Private Ltd (KAP) — a Kyocera subsidiary dedicated to sales in the Asia-Pacific region.

In recent years, even amongst the BRIC countries, India has been accomplishing strikingly high economic growth — with a GDP growth rate second only to China. With development of the IT industry, and following the rapid expansion of the automotive and digital consumer electronics industries, many Japanese and foreign-based manufacturers have been setting up and relocating sales offices and manufacturing sites in the country.

Up until now, Kyocera sales activities to India had mainly been conducted from the KAP headquarters in Singapore. In 2005, KAP set up a representative office in Bangalore, India to help support the cutting tool sales of local distributors, and since then has also started actively marketing Kyocera’s line of products including electronic, semiconductor, fine ceramic and thin film components as well as solar panels.
Recognizing the importance of the rapidly growing Indian market, the establishment of KAPI will allow the Kyocera Group to better respond to customer needs and product demand.

As one of the markets in Asia on which Kyocera has placed strategic importance, KAPI will be able to aggressively develop its sales activities in India. The new company will begin with sales of cutting tools, and subsequently progress with further sales of other Kyocera components.

Kyocera develops industry’s first SAW filter with high selectivity to prevent radio wave interference

JAPAN: Kyocera Corp. has successfully developed two types of compact Surface Acoustic Wave (SAW) filters — for reception and transmission — that dramatically improve the prevention of radio wave interference in next-generation high-speed wireless communication networks such as WiMAX.

This development creates the first SAW filters in the industry in the high-frequency range of 2.6 GHz to feature high selectivity and low loss characteristics. Samples of the new SAW filters are currently available.

SAW filters are used to separate desired signals in high-frequency bands. The 2.6 GHz range, which is used by diverse communications networks, is a particularly highly congested frequency.

Consequently, these new compact SAW filters were developed to improve usability in order to assure stable communications through the prevention of radio wave interference with other systems in adjacent signals during data transmissions and data communications in next-generation high-speed wireless networks.

Using circuit design, simulation, and microfabrication technologies that have been developed through years of research, Kyocera has achieved a 30 dB typ. attenuation of signals adjacent to 5 MHz-wide bands in the 2.6 GHz range, boasting an insertion loss of only 2.5 dB typ.

This is an industry-first in the development of compact, revolutionary SAW filters for the prevention of radio wave interference.

As high-speed mobile wireless communication networks including WiMAX, Wi-Fi and XG-PHS are expected to show further growth, the demand for SAW filters is also expected to expand due to their effective application in high-speed mobile wireless communication networks and related devices, and wireless measuring instruments such as testers for wireless communications devices.