Capella Intelligent Subsystems makes optical switches for traffic management in optical networks. Their switches have the ability to be wavelength-selective, allowing higher level monitoring and routing capabilities.

The company has been around for some time, having been started in 2000 and funded with $44 million. We reported last year that it had jump-started its sputtering operations with a fresh $20 million infusion.

Lucas Venture Group led the latest investment of $15 million, while previous investors Levensohn Venture Partners, Rustic Canyon Partners and Formative Ventures also participated. The San Jose, Calif. company has taken a total of $79 million so far.

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