Covert Fiber-coupled Eye-safe Laser Rangefinder for Photonic Masts Navy SBIR FY2016.1 Sol No.: Navy SBIR FY2016.1 Topic No.: N161-033 Topic Title: Covert Fiber-coupled Eye-safe Laser Rangefinder for Photonic Masts Proposal No.: N161-033-0804 Firm: Voxtel Inc. 15985 NW Schendel Avenue Suite 200 Beaverton, Oregon 97006 Contact: George Williams Phone: (971) 223-5646 Web Site: http://www.voxtel-inc.com Abstract: A compact fiber-based low-power miniature laser rangefinder (LRF) will be developed and shown to provide superior ranging performance within the demanding size, weight, and power (SWAP) requirements of existing and planned photonics masts, such as found on Virginia- and SSGN-class submarines. The LRF includes a 6-ns pulsed 1-mJ miniature laser, a temperature-compensated avalanche photodiode (APD) photoreceiver with about 10 photons noise equivalent input (NEI), and a time-to-digital converter (TDC) with sub-20-ps time accuracy. The transmit and receive optics will be fiber-coupled, with consideration for the laser-pulse energy, and demonstrated to range to beyond 10 km, with 0.1 m resolution, working remotely from the optical system. Benefits: The innovation has widespread applications in construction, mapping, sporting optics, scanned laser detection and ranging (LADAR systems), automotive driver assistance systems (ADAS), autonomous navigation systems, etc. Return