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Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
In this paper, ultra-low noise hybrid lasers operating with high output power are demonstrated. These hybrid lasers provide very low relative intensity noise, below −165dB/Hz, extremely low phase noise, and Lorentzian linewidths as low as 15 Hz, enabling key RF Photonics and Optical Sensing applications.
Analog optics [1], commonly termed microwave photonics [2], is a decades-old field that offers well-cited advantages over analog and digital electronics. The two most important features in most, if not all, deployable use cases are low propagation loss in fiber and wide bandwidth. Indeed, the massive fiber telecommunications industry was born from simultaneous utilization of these two advantages over...
Satellite communications are providing higher data rates through the use of higher frequency bands and higher order modulation schemes [1]. There may be a need to distribute antennas over hundreds of meters to kilometers, for example in a goniometric system for direction finding applications [2]. Radio frequency (RF) photonics may be used as a distributed gateway to access these high frequency bands...
There is a growing need for RADAR systems to address short range sensing problems where standard electro-optic sensors are impeded. From convoy situational awareness to rotorcraft brownout, there are a growing number of military requirements to address degraded visual environments (DVE) where new solutions are needed to provide feedback to the operator in both manned and unmanned platforms. In such...
A method is presented for simultaneous detection of radio waves' frequency and angle of arrival through coherent optical processing. This technique uses fiber length dispersion paired with a distributed antenna array, providing unique CCD-captured interference patterns for computational tomographic reconstruction of the RF signal environment.
The presentation describes the progress made in the first two years of operation on technical goals, operational framework, and opportunities for the broader photonics community. The institute is providing a turn key capability to industrial customers with a primary focus on SMEs, universities and government agencies.
We provide an overview of electronic-photonic integration techniques and describe our recent work to develop monolithic and hybrid photonic components and integrated circuits (PICS) realized in several material platforms (silicon, silicon nitride, compound semiconductors) for a variety of government applications.
We demonstrate a reconfigurable Si-photonic fourth-order all-pass filter-based topology to synthesize Butterworth, Chebyshev, and elliptic filter responses. Ring resonator drop port photodetectors provide electrical monitor information to tune the location of both the poles and zeros to dynamically set the desired filter configuration.
Chipscale integration of electronics and photonics is a logical next step in the evolution of information technology; however, given issues related to the footprint of photonic devices and circuits, bandwidth of current electro-optic (EO) modulators, energy efficiency of EO devices, and optical loss budget, electronic photonic integration represents a grand challenge requiring both improvement of...
Using an optically injected semiconductor laser, we synthesize a wide range of microwave frequencies with tuning rates of 1 × 1018 Hz sec over 10 GHz bandwidth. We show that opto—e1ectronic feedback narrows the linewidth of the microwave signal from 1 MHz to < 10 Hz.
Photonic systems are being increasingly designed for multi-functional, distributed avionic platforms to satisfy the next-generation military needs [1]. This approach requires establishing high-capacity, Free-Space Optical (FSO) communication networks that connect a variety of mobile and aerial platforms in an ad-hoc fashion [2]. Traditional design methodology, that addresses a specific scenario with...
We propose a low-power-consumption pulse position modulation laser transmitter based on a gain-switched DFB laser biased below threshold and subsequent optical amplification. The gain-switched operation enables short pulse generation controlled by the driving signal with power consumption under 1 W.
We propose and demonstrate a tunable optoelectronic oscillator (TOEO) based on Stimulated Brillouin scattering (SBS). By the joint of coupled double loops (CDLs), we not only increase the side-mode suppression ratio (SMSR) of the SBS-based TOEO, but also enhance the stability of the system.
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