Israeli optical communications start-up BroadLight Inc, which also has offices in Mountain View, Calif., has raised $12 million in its fifth round of financing.

Benchmark Capital led the round. Existing shareholders include Motorola Ventures, Azure Capital Partners, Delta Ventures, Israel Seed Partners, Star Ventures, Cipio Partners, Broadcom Corporation and Tellabs Inc.

BroadLight has raised $50 million since 2000.