Location History:
- Stockholm, SE (2006)
- Enskede, SE (2001 - 2009)
Company Filing History:
4 out of 25,736 
2 out of 20,382 
1 out of 2 Years Active: 2001-2009
Title: The Innovations of Dag Bonnedal
Introduction
Dag Bonnedal is a notable inventor based in Enskede, Sweden. He has made significant contributions to the field of optical networks, holding a total of 7 patents. His work primarily focuses on enhancing the efficiency and functionality of wavelength division multiplexing (WDM) networks.
Latest Patents
One of his latest patents involves optical channel power control in WDM networks. This innovation addresses how information about optical amplifier amplified spontaneous emission (ASE) power is propagated down a link. Each amplifier along the link can learn about the ASE power at its input and adjust its own per-channel output power accordingly. Additionally, amplifiers can pass along an indicator representing their output ASE power, which takes into account both input ASE power and their own generated ASE power. Intermediate optical add/drop multiplexers (OADMs) play a crucial role in adjusting the ASE power indicator to account for losses and the spectral characteristics of each filter. Another significant patent pertains to the connection of an add/drop node in an optical WDM network. This design features two fiber paths for light of multiple channels propagating in opposite directions, with each channel having two identically constructed add/drop modules.
Career Highlights
Dag Bonnedal has worked with prominent companies in the telecommunications industry, including Telefonaktiebolaget LM Ericsson and Cisco Technology, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical technology.
Collaborations
Throughout his career, Dag has collaborated with esteemed colleagues such as Bengt Johansson and Gunnar S. Forsberg. These partnerships have contributed to the advancement of his inventions and the overall progress in the field.
Conclusion
Dag Bonnedal's contributions to optical network technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in telecommunications.