Cyan Optics, a secretive Petaluma, Calif. telecom equipment startup launched last year by Mike Hatfield, the founder of Cerent and Calix Networks, has raised $8.75 million in a first round of funding (Light Reading).

The round was led by venture capital firms Azure Capital Partners and Norwest Venture Partners, according to Thomson Financial and SEC filings.

Norwest had been an investor in Cerent, which Cisco acquired for nearly $7 billion in stock back in 1999. Azure, in turn, backed backed Calix Networks, still private.