- Vescent to show non-mechanical optical communication link at Photonics West
Golden, CO (14 Feb, 2016) Vescent Photonics will unveil a free-space optical communication (FSO) demonstration based on its unique liquid crystal waveguide technology. A completely non-mechanical, live optical link with multiplexed data transmission will be on display. The engine for establishing & maintaining the communication link is the SEEOR (Steerable Electro-Evanescent Optical Refractor), the 2015 Prism Award-nominated non-mechanical beam steering device.
Dr. Scott Davis, VP of Technology at Vescent explains, “The SEEOR takes advantage of the extraordinarily large electro-optic effect of liquid crystals to create a tunable Snell’s Law prism which controllably refracts a laser beam over a large Field of View.” The SEEOR is truly analog, allowing for raster scanning, tracking, zooming, and point & hold – all essential for the FSO link to function. Davis continues, “We expect the FSO to be deployed in the secure and satellite communications fields while the SEEOR itself will prove to be a key enabler to non-mechanical LIDAR and will address high-volume commercial markets such as automated driving, inspection & handling robotics, and gaming.”
About Vescent Photonics: Vescent Photonics, Inc., a privately held company, was founded in 2002 to develop and manufacture technologies in waveguide, electro-optics, tunable lasers, and electronics for precision laser control. Staff experience as researchers at the University of Colorado (JILA), NIST, the Colorado School of Mines, and the University of California at Berkeley has allowed us to become a leader in liquid crystal waveguide technology. The company is wholly owned by the original founders.
- Gravitational Wave Detection Confirmed
Confirming a prediction of Albert Einstein’s from a hundred years ago, scientist from LIGO (Laser Interferometer Gravitational-wave Observatory) have confirmed the existence of gravitational waves.
Two multi-kilometer interferometers in Washington and Louisiana states made coincident measurements confirming the detection of the gravitational wave on 14 September 2015. An abundance of caution led the scientist to delay official announcement of the discovery until a press conference on 11 February 2016.
Quoting from the Caltech website – a leading institution coordinating LIGO: In an “event about 3 times the mass of the sun was converted into gravitational waves in a fraction of a second — with a peak power output about 50 times that of the whole visible universe.”
And on the MIT website, Rainer Weiss, a professor emeritus of physics at MIT, the other leading institution behind LIGO, says, “It’s a spectacular signal. It’s a signal many of us have wanted to observe since the time LIGO was proposed.” Prof. Weiss continued, “Einstein is right in a regime where his theory has never been tested before.”
The paper discussing the observation has been accepted by the Physical Review Letters.
Congratulations to the entire LIGO team! LIGO is an NSF-funded program.
- Vescent is 2015 Prism Award Finalist
Vescent Photonics is proud to announce that we have been selected as a finalist for the 2015 Prism Awards for Photonics Innovation. The Prism Awards, sponsored by SPIE, honor the best new photonics products on the market. We have been nominated to the Optics and Components category for our SEEOR laser scanner.
The SEEOR (Steerable Electro-Evanescent Optical Refractor) is a completely non-mechanical beam steering device which features low SWaP and will allow the laser to interrogate a 35×8° field of regard. Unlike resonant MEMS scanners, the SEEOR will allow you to not only rapidly scan a field, but will also allow zooming to specific portions of the field, point and hold capability, and tracking. With no moving parts, it is not subject to inertial effects and the liquid crystal-based technology does not require the high power consumption of ao modulators.
See you in San Francisco!
- Vescent Staff Scientist Profiled by Denver Philharmonic
That’s Vescent’s very own Senior Scientist Ben Luey being profiled on the Denver Philharmonic’s web page, the Buzz. Ben has been with Vescent Photonics for 9 years and he has been playing the viola for the Denver Philharmonic all this time. We are proud that Ben has found time to lead our Electrical and Optical Engineering teams through many successful product launches and SBIR grants as well as to enhance the Denver cultural environment. Thanks, Ben.
- Vescent Photonics Has Moved
Vescent Photonics is proud to announce that we have moved our operations into a newer, larger facility. After bursting at the seams for a number of years, we have increased our square footage by roughly a factor of 3 to over 10,000 ft2. Our new building has freshly updated workspaces, including an abundance of power, light, and connectivity. It also boasts of expanded labs and production floor space, a stock room, and a 2,000 ft2 class 10,000 clean room.
Our new home office is located at:
14998 W. 6th Ave.
Golden, CO 80401
We’d be pleased to host a visit if you’d like to see the new building.
We did not change any of our phone lines or internet connectivity.
- Vescent Introduces Q&A Forum
- Laser Fusion Achieved at NIF
Scientists at the National Ignition Facility (NIF) in Livermore, CA report that for the first time a laser-initiated plasma has produced more energy than was put into it. Although the total amount of energy in the laser pulse was greater than that released, this is considered to be a significant step as greater than unity gain was achieved for the light that actually struck the target. The group published their findings in Nature, the International Weekly Journal of Science. News outlets, including NPR, have reported the story.
- JILA Atomic Clock Hits New Level of Accuracy… and Mainstream Media
A JILA team at Boulder, CO headed by Jun Ye has published their results on a new Strontium-based atomic clock demonstrating accuracy on the order of 1 second for the lifetime of the earth. The clock, as reported in Nature1, has an accuracy of 6.4×10-18 and is based on a lattice of Strontium atoms. The clock surpasses the accuracy of the previous record holders, clocks based on single ions2,3,4.
Though the results were only released as an advanced online publication on 22 January (three days ago at the publication of this post), the clock has already been reported on in the mainstream media, including NPR, Nature World News, and the Daily Mail, demonstrating a widespread interest in atomic physics.
Congratulations to the group for their efforts and results.
1Bloom, B.J., Nicholson, T.L., Williams, J.R., Campbell, S.L., Bishof, M., Zhang, X., Zhang, W., Bromely, S.L., Ye, J. An optical lattice clock with accuracy and stability at the 10-18 level. Nature online.
2Chou, C. W., Hume, D. B., Koelemeij, J. C. J., Wineland, D. J. & Rosenband, T. Frequency comparison of two high-accuracy Al+ optical clocks. Phys. Rev. Lett. 104, 070802 (2010)
3Huntemann, N. et al. High-accuracy optical clock based on the octupole transition in 171Yb+.Phys. Rev. Lett. 108, 090801 (2012)
4Madej, A. A., Dubé, P., Zhou, Z., Bernard, J. E. & Gertsvolf, M. 88Sr+ 445-THz single-ion reference at the 10−17 level via control and cancellation of systematic uncertainties and its measurement against the SI second. Phys. Rev. Lett. 109, 203002 (2012)
- 2013 Nobel Prize in Physics Awarded to François Englert and Peter W. Higgs
The 2013 Nobel Prize in Physics was awarded jointly to François Englert and Peter W. Higgs “for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particles, and which recently was confirmed through the discovery of the predicted fundamental particle, by the ATLAS and CMS experiments at CERN’s Large Hadron Collider.”
Congratulations Drs. Englert and Higgs!
- Ana Maria Rey Wins MacArthur Fellowship for Cold Atom Theory Work
JILA Fellow Dr. Ana Maria Rey has been awarded a 2013 MacArthur Fellowship, also known as a “Genius Grant.” Dr. Rey has been developing the theory of cold atom physics including the theoretical underpinnings of ultra-cold optical lattices and the large-scale entanglement between atoms.
We are proud that the MacArthur Foundation has recognized a member of the Atomic, Molecular, and Optical Physics Community for this prestigious award.
Congratulations Dr. Rey!
Each year, the John D. and Catherine T. MacArthur Foundation identifies 20 to 30 exceptionally creative individuals with the potential for important work and provides them with financial support, freeing them to pursue their most innovative ideas. The MacArthur Fellows Program awards unrestricted fellowships to talented individuals who have shown extraordinary originality and dedication in their creative pursuits and a marked capacity for self-direction.
Vescent Photonics is excited to again be participating in the SPIE Defense and Commercial Sensing Conference in Baltimore, 17-21 April, 2016. Come see us at Booth 241. We are pleased to be presenting two papers. Our paper No. 9828-7, titled “Laser-based satellite communication systems stabilized by non-mechanical electro-optic scanners,” will be in the Airborne Intelligence, Surveillance, Reconnaissance (ISR) […]Read more
Golden, CO (14 Feb, 2016) Vescent Photonics will unveil a free-space optical communication (FSO) demonstration based on its unique liquid crystal waveguide technology. A completely non-mechanical, live optical link with multiplexed data transmission will be on display. The engine for establishing & maintaining the communication link is the SEEOR (Steerable Electro-Evanescent Optical Refractor), the 2015 […]Read more
Confirming a prediction of Albert Einstein’s from a hundred years ago, scientist from LIGO (Laser Interferometer Gravitational-wave Observatory) have confirmed the existence of gravitational waves. Two multi-kilometer interferometers in Washington and Louisiana states made coincident measurements confirming the detection of the gravitational wave on 14 September 2015. An abundance of caution led the scientist to delay official […]Read more
Scott R. Davis,* Seth T. Johnson, Scott D. Rommel, and Michael H. Anderson (Vescent Photonics) Jimmy Chen and Tien-Hsin Chao (Jet Propulsion Laboratory) In this paper we present new electro-optic beam steering technology and propose to combine it with optical telecommunication technology, thereby enabling low cost, compact, and rugged free space optical (FSO) communication modules […]Read more
Microresonator Frequency Comb Stabilization with the Vescent Photonics D2-125 Reconfigurable Servo The comb tooth spacing and its control are important parameters for building an effective frequency comb. Senior Research Scientist Dr. Shu-wei Huang at UCLA has used the Vescent Photonics D2-125 Reconfigurable Servo to stabilize the comb tooth spacing of a microresonator frequency comb and shares […]Read more
Vescent Photonics will be attending Photonics West at Moscone Center in San Francisco from 13 to 18 February, 2016. We invite you to visit us at booth 4159 and see the latest developments in non-mechanical beam steering as well as lasers, electronics, and electro-optics for the AMO community. If you just can’t wait for your […]Read more
We are pleased to provide an application note on the use of the D2-135 Offset Phase Lock Servo to acquire phase locks with frequency offsets to 43 GHz and potentially higher. Sideband Locking Application Note Normally the D2-135 OPLS is used to obtain a phase lock between slave and master lasers with a user-selected frequency offset […]Read more
The 2015 Nobel Prize in Physics was shared by Takaaki Kajita of the University of Tokyo and Arthur B. McDonald of Queen’s University (Kingston, Canada) for their “discovery of neutrino oscillations, which shows that neutrinos have mass.” Congratulations!Read more
The Vescent Photonics SEEOR (Steerable Electro-Evanescent Optical Refractor) will non-mechanically steer an infrared laser over a 30ºx5º Field of View in a truly analog fashion allowing for raster scans, tracking, and random beam scans. Two new videos show the capabilities of the SEEOR, including its performance in a closed-loop tracking situation. [/row] Contact Vescent for […]Read more