Location History:
- Älvsjö, SE (2003 - 2005)
- Älvsiö, SE (2005)
Company Filing History:
Years Active: 2003-2005
Title: Sven Wingstrand: Innovator in Optical Communication Systems
Introduction
Sven Wingstrand is a notable inventor based in Älvsjö, Sweden. He has made significant contributions to the field of optical communication, holding a total of 5 patents. His work focuses on enhancing the performance and stability of optical amplifiers, which are crucial for modern communication systems.
Latest Patents
Sven's latest patents include a WDM optical communication system. This invention involves a method and apparatus for controlling the signal output power of an optical amplifier. The target output power is monitored by summing the desired signal output power and an estimation of the amplified spontaneous emission (ASE) generated at this power. The ASE estimation is based on a predetermined relationship between the amplifier's gain and the generated ASE. In a simplified implementation, this relationship is approximated as linear, determined by measuring the ASE at two different gains. The target output power can then be used to stabilize the amplifier output.
Another significant patent by Sven is related to gain control in optical amplifiers. This optical amplifier arrangement includes elements for measuring the gain applied to the total input power and a control unit that determines the gain tilt based on total gain measurements. This relationship is established during production through measurements of the amplifier or a batch of amplifiers. By providing a precise figure for gain tilt, this invention can either eliminate gain tilt or monitor it if system requirements allow for limited variations.
Career Highlights
Sven Wingstrand is currently employed at Telefonaktiebolaget LM Ericsson (publ), a leading telecommunications company. His work at Ericsson has allowed him to develop innovative solutions that enhance optical communication technologies. His contributions have been instrumental in advancing the capabilities of optical amplifiers, which are essential for high-speed data transmission.
Collaborations
Sven has collaborated with notable colleagues such as Johan Sandell and Edgard Goobar. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies in the field of optical communication.
Conclusion
Sven Wingstrand's contributions to optical communication systems through his patents and work at Ericsson highlight his role as a key innovator in the industry. His inventions not only improve the performance of optical amplifiers but also pave the way for advancements in communication technology.