Avo Photonics Selected by Vescent Photonics for Optoelectronic Laser Scanner
Design and Production
Avo provided packaging services for Vescent’s 2D EO laser scanners.
July 31, 2012
Horsham, Pennsylvania (July 31, 2012) – Avo Photonics, industry expert in rugged micro-optic design
and manufacturing, has been contracted by Vescent Photonics to provide custom development and
ongoing packaging services for its 2-dimensional electro-optic laser scanners.
Rather than controlling beam direction through mechanical manipulation of lenses or mirrors, Vescent’s
novel scanning technology uses changes in voltage through a silicon-mounted liquid crystal waveguide to
steer optical output, resulting in the ability to maneuver a beam up to 270 degrees in-plane. The absence
of moving mechanical components allows for a faster, lighter weight, more robust scanner with no
induced angular momentum, ideal for such applications as laser range finding, topographical mapping and
line-of-site communication between high-speed vehicles.
Vescent’s initial program required Avo to design and produce packaged scanners with an input coupled
polarization-maintaining optical fiber and scanned free-space emission over ±20 degrees horizontally and
±5 degrees vertically. Given the critical optical alignments inherent to the components, as well as the
challenging thermal and mechanical vibration real-world environmental operating conditions, significant
diligence and care were required.
The project used Avo’s advanced capabilities in tight-tolerance optical and mechanical design, precision
micro-optical alignment, and ruggedized packaging. Avo was able to achieve and maintain stable lowloss
fiber coupling to the single mode scanner and enable consistent device performance in diverse
operating environments. The critical 0.02 degree (350 urad) input angle coupled fiber efficiently launched
the 1550 nm laser light into the waveguide’s 10 um diameter, 0.1 NA mode field. To ensure that this
alignment angle remains stable through the expected temperature variations and other environmental
uncertainties, Avo performed a number of design analyses and physical tests, including temperature
cycling, vibration, mechanical shock/drop and mounting stress.
“Vescent’s ability to raster a beam, in 2 dimensions, at high speed with no moving parts and in such an
elegant, simple package is really exciting technology,” said Avo’s Chief Technology Officer, Dr. Thomas
Haslett. “We are looking forward to the large-scale production of these scanners to support Vescent’s
“Avo uniquely was able to satisfy all the challenging requirements they were given without any negativity
or surprises,” said Scott Rommel, Chief Operating Officer of Vescent Photonics. “We were glad to see
that they kept their processes completely transparent to us, so collaboration was easy and seamless.”
Avo Photonics provides exclusive, private label optoelectronic design, prototyping and production
services for military, aerospace, medical, industrial and communications applications. Through its pureservice
business model, Avo produces confidential, client-owned products and systems that launch its
customers to the forefront of their markets. To find out more about Avo Photonics and its unique service
process that enables it to work with companies at any stage of their idea lifecycle, visit
Vescent Photonics develops and manufactures innovative electro-optic, waveguide, and laser
technologies. From voltage control over optical phase to frequency stabilized diode laser systems and
precision electronics, Vescent scientists and engineers are continuously developing new solutions to
technical challenges. To find out more about Vescent Photonics, visit