Fast-light phenomena can enhance the sensitivity of an optical gyroscope of a given size by several orders of magnitude, and could be applied to other optical sensors as well. MagiQ Technologies has been developing a compact fiber-based fast light Inertial Measurement Unit (IMU) using Stimulated Brillouin Scattering in optical fibers with commercially mature technologies. We will report on our findings, including repeatable fast-light effects in the lab, numerical analysis of noise and stability given realistic optical specs, and methods for optimizing efficiency, size, and reliability with current technologies. The technology could benefit inertial navigation units, gyrocompasses, and stabilization techniques, and could allow high grade IMUs in spacecraft, unmanned aerial vehicles or sensors, where the current size and weight of precision gyros are prohibitive. By using photonic integrated circuits and telecom-grade components along with specialty fibers, we also believe that our design is appropriate for development without further advances in the state of the art of components.
It has been proposed that fast-light optical phenomena can increase the sensitivity of an optical gyroscope of a given size
by several orders of magnitude. MagiQ Technologies is developing a compact fiber-based fast light Inertial
Measurement Unit (IMU) using Stimulated Brillouin Scattering (SBS) in optical fibers with commercially mature
technologies. We have demonstrated repeatable fast-light effects in the lab using off-the shelf optical components.
Numerical analysis has revealed the requirements for stable, sensitive operation of gyroscopes, accelerometers or other
sensors, as well as identified methods for optimizing efficiency, size, and reliability with known optical technologies. By
using photonic integrated circuits and telecom-grade components along with specialty fibers, our design would be
appropriate for mass production. We have eliminated all free-space optical elements or wavelength dependent elements
such as atomic vapor cells in order to enable a compact, high sensitivity IMU stable against environmental disturbances.
Results of this effort will have benefits in existing applications of IMUs (such as inertial navigation units,
gyrocompasses, and stabilization techniques), and will allow wider use of RLGs in spacecraft, unmanned aerial vehicles
or sensors, where the current size and weight of optical IMUs are prohibitive.
It has been proposed that fast-light optical phenomena can increase the sensitivity of a Ring Laser Gyroscope (RLG) of a given size by several orders of magnitude. MagiQ is developing a compact fully-fibered fast light RLG using Stimulated Brillouin Scattering (SBS) in commercial optical fiber. We will discuss our experimental results on SBS pumped lasing in commercial fibers and analyze their implications to the fast light generation. Based on these results, we envision a fast light enhanced Ring Laser Gyroscope (RLG) that will use only a few meters of fiber and require moderate pump power (only a few 100’s of mW). We will present the design that is based on proven, commercially available technologies. By using photonic integrated circuits and telecom-grade fiber components, we created a design that is appropriate for mass production in the near term. We eliminated all free-space optical elements (such as atomic vapor cells), in order to enable a compact, high sensitivity RLG stable against environmental disturbances. Results of this effort will have benefits in existing applications of RLGs (such as inertial navigation units, gyrocompasses, and stabilization techniques), and will allow wider use of RLGs in spacecraft, unmanned aerial vehicles or sensors, where the current size and weight of optical gyros are prohibitive.
The efficiency of spontaneous parametric down conversion is calculated and measured for several nonlinear
crystals and waveguides in single spatial mode regime. Efficiency of waveguide sources is found to
be far superior compared to the bulk crystal sources.
We describe a robust heralded single photon source based on parametric down conversion
of CW 532-nm light in a periodically polled KTP waveguide. Low required pump power (sub-mW),
reasonable operational temperature (43oC), high heralding efficiency (60%), and narrow spectral
width of the heralded photons (sub-nm) make it an ideal light source for long-distance quantum
communications.
KEYWORDS: Interferometers, Quantum key distribution, Single photon, Signal attenuation, Quantum cryptography, Sensors, Polarization, Information security, Visibility, Signal detection
We report our recent results in development of the secure fiber-optics communication system based upon quantum key
distribution (QKD). Emphasize is made on the limitation imposed by the state-of-the-art components crucial for the
system performance. We discuss the problem of the interferometer design and highlight the possible security loopholes
known. Together with single photon counting performance it places the main restriction on the distance range and the
secure key rate of the QKD system based upon the weak coherent pulses. Finally we describe the result of the first test
of the system using single photons produced by non-degenerate parametric down-conversion as a source.
The first demonstration of a flashlamp pumped zig-zag liquid dye laser is presented. Repetitively pulsed measurements with liquid Pyrromethene-567 demonstrated 230 mJ per pulse at 1 Hz. This design will be used to test solid state plastic host dyes.
Studies of the energy scaling and beam quality improvement of a long pulse laser pumped solid state dye laser are presented. These measurements establish the state of the art for beam quality and single pulse energy of a solid state plastic dye laser.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.