Agency: Department of Defense | Branch: Army | Program: STTR | Phase: Phase I | Award Amount: 99.97K | Year: 2013
SRICO proposes to combine metamaterial narrowband absorbers and SRICO-proprietary thin film lithium tantalate (TFLT) pyroelectric thermal detectors to produce ultra low cost, size, weight and power (SWaP) room temperature stand-off chemical sensors. Metamaterial narrowband absorber elements will be integrated into the TFLT pyroelectric detector process to provide conversion of radiation to heat, which is then sensed by the pyroelectric detector. Radiation outside a narrow absorption band is reflected by the metamaterial element. In addition, the metamaterial device can be engineered to reflect radiation that falls outside a narrow field of view or acceptance cone angle to mitigate self-radiance effects. This spectrally and aperture selective absorption suppresses blackbody radiation and enables the sensor to achieve shot limited performance. An array of TFLT metamaterial absorber elements tuned to different wavelengths can be formed on a silicon CMOS circuit to produce a highly compact and high speed room temperature long wave infrared (LWIR) spectrometer for stand-off chemical sensing. Compact, low cost and spectrally resolved stand-off chemical sensors that operate at room temperature will have broad applicability to a large number of important defense, industrial, medical, and environmental applications.
Agency: Department of Defense | Branch: Army | Program: STTR | Phase: Phase II | Award Amount: 749.98K | Year: 2014
SRICO proposes to combine metamaterial narrowband absorbers and SRICO-proprietary thin film pyroelectric thermal detectors to produce ultra low size, weight, power and cost (SWAP-C) room temperature stand-off chemical sensors. Metamaterial narrowband absorber elements are integrated into the thin film pyroelectric detector process to provide conversion of radiation to heat, which is then sensed by the pyroelectric detector. Radiation outside a narrow absorption band is reflected by the metamaterial element. In addition, the device is engineered to reflect radiation that falls outside a narrow field of view or acceptance cone angle to mitigate self-radiance effects. This spectrally and aperture selective absorption suppresses blackbody radiation and enables the room temperature pyroelectric sensor to emulate the intrinsic noise rejection of cooled semiconductor band-gap devices. An array of pyroelectric metamaterial absorber elements tuned to different wavelengths can be formed on a silicon CMOS circuit to produce a highly compact and high speed long wave infrared (LWIR) spectrometer for mobile passive stand-off chemical sensing. In Phase I, SRICO proved the concept of the proposed technology fabricating and testing single element narrowband MMPA pyroelectric elements. In Phase II, SRICO will optimize the MMPA sensor element design and demonstrate multi-element prototypes in the chemical sensing application. Compact, low cost and spectrally resolved stand-off chemical sensors that operate at room temperature will have broad applicability to a large number of important defense, industrial, medical, and environmental applications.
Agency: Department of Defense | Branch: Army | Program: SBIR | Phase: Phase I | Award Amount: 99.98K | Year: 2014
In the burgeoning field of quantum information science, the states of individual photons, or entangled photon pairs, are used for storage, processing and secure transmission of information. The single photon sources and detectors used in this field perform best in the near-infrared (750-1000 nm) wavelength range. However, for long-distance transmission over optical fiber, it is necessary to take advantage of the minimum-loss windows around 1300 nm and 1500 nm. Thus, a crucial element in a quantum optical information processing system is a quantum frequency conversion device that can convert photons between these disparate wavelength bands while preserving their quantum state. SRICO proposes to develop a plug-and-play nonlinear device for quantum frequency conversion based on periodically poled lithium niobate (PPLN) waveguide having high difference and sum conversion efficiency greater than 30% per Watt per centimeter square with at least 10 dB signal-to-noise performances. Two complimentary modules will be developed for this proposal: (1) Difference Frequency Generation (DFG) module with input wavelengths of 795 nm and 1989 nm and (2) Sum Frequency Generation (SFG) module with inputs of 1324 nm and 1989 nm. The Phase I will design robust, fully packaged SFG and DFG quantum frequency conversion modules incorporating the PPLN waveguide device, coupling optics and temperature control apparatus. The overall size of the modules will be less than 30 cubic centimeter. In the Phase I Option task, PPLN waveguide devices will be fabricated and validated in a laboratory setting to demonstrate the key characteristics of the QFC modules.
Agency: Department of Defense | Branch: Missile Defense Agency | Program: SBIR | Phase: Phase I | Award Amount: 129.76K | Year: 2015
In Phase I, SRICO will experimentally demonstrate the concept and complete the design of a compact robust, polarization insensitive integrated optic phase modulator and polarization controller module for Phase II development. SRICO proposes to develop a phase modulator and polarization controller based on new waveguide technologies to handle high optical power and novel device geometries to achieve wide bandwidth and low drive voltage. Performance, size and cost benefits may be achieved by combining phase modulation and polarization control in a single module suitable for use in high power fiber laser beam combiners. SRICOs integrated optic concept for a monolithically integrated optical polarization controller and phase modulator in a single robust package will enable a wide-band, high power spectral and coherent beam combining solution with improved optical efficiency and reduced size, weight, power, and cost (SWAP-C). Approved for Public Release 14-MDA-8047 (14 Nov 14)
Agency: Department of Energy | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 149.96K | Year: 2016
The increasing dependence on big data and cloud computing in business, science and medicine places new demands on computing and telecommunications infrastructure. Since modern high-speed networks have optical fiber transmission at their core, improved and more highly integrated photonic components are needed to enable secure, reliable transmission of massive data sets while reducing costs and power consumption. SRICO proposes to develop multi-function photonic modules that boost both capacity and efficiency of high-speed networking and secure communications where reliability is critical to operation while at the same time significantly reducing cost. The proposed modules achieve these improvements through the seamless monolithic integration of multiple optical networking functions on a single lithium niobate chip. The proposed multi-function photonic modules will constitute an enabling technology for secure Terabit/second optical networks with important applications in the US government, national infrastructure, and the commercial sector. This technology will be applied in advanced telecommunications networks to enable higher data rates at lower cost and with reduced energy consumption. It will advance the state of the art in quantum communication, thereby enhancing information security at critical US infrastructure sites including power generation and distribution stations and DOE laboratories.
Agency: Department of Defense | Branch: Defense Advanced Research Projects Agency | Program: SBIR | Phase: Phase I | Award Amount: 99.87K | Year: 2014
SRICO proposes to develop novel and practical methods to produce a flexible, robust and highly efficient, low-loss quantum frequency conversion device based on periodically poled lithium niobate (PPLN). The focus of the program will be to optimize the device design and operating parameters to achieve less than 1.5 dB end-to-end loss while maintaining nearly 100% conversion efficiency and reducing noise from spurious processes such as Raman scattering. Waveguides fabricated by diffusion of titanium transmit both TE and TM modes with low loss and support Type II nonlinear interactions Devices as long as 70mm could be fabricated due to the low losses in Ti diffused PPLN waveguides to produce a narrow spectral width of 0.2nm. Using appropriate choice of the poling period, the operating temperature of the PPLN device and the pump wavelength, the PPLN structure will be capable of converting any wavelength in the 400-800 nm range to any wavelength in the telecommunications C-band and vice-versa. In Phase I, SRICO will fabricate, test and evaluate devices, and will identify, both through preliminary experimental data as well as computer modeling, a roadmap towards optimizing the devices, in terms of raw performance as well as mass production feasibility.
Agency: Department of Defense | Branch: Missile Defense Agency | Program: STTR | Phase: Phase I | Award Amount: 149.94K | Year: 2011
Mercury Cadmium Telluride (MCT) has been described as one of the most technologically significant semiconductor materials and is the most widely used material for long wave infrared (LWIR) imaging. The current challenge is to produce MCT over large focal plane array size at low cost and high reliability without compromising sensitivity or noise performance. MCT on silicon substrates is highly attractive for cost and handling reasons and for thermal matching to silicon readout electronics. SRICO proposes to develop wafer bonding and physical layer transfer technology to form bulk quality low defect density (MCT) films on silicon substrates. In Phase I, SRICO will experimentally prove the feasibility of the proposed technology in forming low defect density MCT on silicon substrates. Electrical and optical test structures will be fabricated and tested to qualify the device quality of the material. In a Phase II effort, SRICO would build and test prototype large format focal plane imaging arrays based on the MCT layer transfer technology developed in Phase I.
Agency: Department of Defense | Branch: Missile Defense Agency | Program: STTR | Phase: Phase II | Award Amount: 999.96K | Year: 2012
The goal of this STTR project is to develop an engineered growth substrate technology that will enable low defect MCT growth on silicon that is comparable in defect density to MCT grown on lattice matched CZT substrates. The layer transfer process elements demonstrated in Phase I will be further optimized to produce low defect density MCT on silicon substrates in Phase II. SRICO will achieve this by physical layer transfer of a bulk quality CZT layer to silicon by using wafer scale methods essentially the same as those used in the highly successful"Smart-cut"silicon-on-insulator (SOI) process. The effort will leverage SRICO"s state-of-the-art ion-slicing techniques for maintaining growth surface layer quality. Process optimization and small scale demonstration of quality MCT growths on engineered growth substrates will be performed in collaboration with SRICO"s STTR partner. Phase II would focus on optimization and scaling up of the technology and on demonstration of FPA device elements formed in the grown MCT films on the engineered substrates.
Agency: Department of Defense | Branch: Defense Advanced Research Projects Agency | Program: SBIR | Phase: Phase II | Award Amount: 749.98K | Year: 2010
This Small Business Innovation Research Phase II project develops novel materials processing and device design that extract the maximum possible performance out of the lithium niobate electro-optic material. The novel modulator device incorporates reconfigurable quasi-phase matching (RQPM) to produce an arbitrary RF bandpass response. The Phase I effort has laid a firm foundation for the creation of a novel, compact, efficient programmable modulator device with tunable RF filtering capability for frequency tunable RF photonic applications. We expect that the combination of crystal thin film technology, innovative device design, and novel domain engineering techniques will develop optical modulator prototypes with electrically programmable RF band pass filter response that will significantly enhance the performance of photonic links operating at microwave frequencies. SRICO proposes significant efficiency improvements to lithium niobate electro-optic modulators that are crucial to achieve practical applications of fiber optic links for microwave transmission and signal processing functions. We propose an architecture and novel optical modulator design for the realization of high gain fiber optic that concurrently provides programmable photonic RF filtering over the 2 to 20 GHz regime. Multiple optical modulators simultaneously fed by a single RF input are proposed to create advanced RF filtering functions.
Agency: Department of Defense | Branch: Air Force | Program: SBIR | Phase: Phase I | Award Amount: 150.00K | Year: 2015
ABSTRACT: This proposal addresses advanced materials processing technologies for production of high linearity and low voltage electro-optic modulators in engineered ferroelectric lithium niobate substrate. SRICO proposes to utilize proprietary crystal ion sliced thin film lithium niobate technology to implement a device structure uniquely designed for the development of high linearity electro-optic modulators. In-house capability to produce thin film lithium niobate provides SRICO the design freedom to implement novel device structures. Reliable nanometer scale formation of optical waveguide elements will be the key to implementation of a practical integrated RF photonic modulator. The key focus of Phase I will be on design, development, modeling and simulation, testing and trade-off analyses of the techniques and the structures to determine the optimal design and processing techniques for meeting the performance requirements. Phase I work will develop processing techniques to experimentally demonstrate total optical insertion loss of less than 6 dB. Modeling, simulation, fabrication and test results will be used to identify a candidate modulator design for prototyping in Phase II that has optical insertion loss less than 6 dB, 3 dB optical bandwidth of 60 GHz for first sideband, V-pi < 2 volts, and no third-order mixing products. BENEFIT: We anticipate that the platform materials engineering technologies developed during this effort will enable SRICO to lay the foundation for a breakthrough highly linearized, high speed electro-optic modulator product that will have multiple dual-use applications, particularly in military and civilian optical communications systems. The low switching voltage modulator would be ideal for wideband optical signal processing for arbitrary waveform generation, optical filtering, A/D conversion and beam forming applications. Other key applications include phased array radar, free space optical communications, mobile communications, satellite communications, cable TV transmission, and short-reach optical networks.