Xtera Raises $52 Million

Xtera Communications, an Allen, Texas-based optical networking and services company, has raised $52 million in seventh-round funding. The Wellcome Trust led the deal with an investment of approximately $26 million, and was joined by return backers New Enterprise Associates and Arch Venture Partners. Xtera has now raised over $218 million in total VC funding since 1998. www.xtera.com