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For decades, progress in the field of optical (including solar) energy conversion was dominated by advances in the conventional concentrating optics and materials design. In recent years, however, conceptual and technological breakthroughs in the fields of nanophotonics and plasmonics combined with better understanding of the thermodynamics of the photon… (More)
Poezevara, "High-spectral purity RF beat note generated by a two-frequency solid-state laser in a dual thermooptic and electrooptic phase-locked loop," IEEEHighly coherent RF signal generation by heterodyne optical phase locking of external cavity semiconductor lasers,"
A carbohydrate-based biosensor was prepared by functionalization of the surface of an etched fiber Bragg grating with a glucopyranosyl-siloxane conjugate. Functionalization of the surface with the conjugate resulted in a Bragg grating shift of 24 pm. This shift in the refractive index is consistent with a theoretical shift calculated assuming monolayer… (More)
In the last two decades, experimental progress in controlling cold atoms and ions now allows us to manipulate fragile quantum systems with an unprecedented degree of precision. This has been made possible by the ability to isolate small ensembles of atoms and ions from noisy environments, creating truly closed quantum systems which decouple from dissipative… (More)
Semiconductor device and integrated circuit physics, innovative power sources, power harvesting and management systems, high power microwave effects.
In high speed-communications, it is desirable to be able to detect small signals while maintaining a low bit-error rate. Conventional receivers for high-speed fiber optic networks are Amplified Direct Detectors (ADDs) that use erbium-doped fiber amplifiers (EDFAs) before the detector to achieve a suitable sensitivity. In principle, a better method for… (More)
Since the 1960s, metal-insulator-metal (MIM) tunneling diodes have been used for detecting and mixing electromagnetic waves up to infrared frequencies. To improve the wave coupling efficiency, an antenna is usually integrated with a MIM diode, and this integrated structure is known as a " rectenna " which can rectify incident waves. Although antenna coupled… (More)
We report on the development of a 4 channel, 10 Gbps/channel WDM laser transmitter module. The module includes four DFB MQW lasers operating in the 1550 nm fiber window. The small-signal characteristics of the DFB laser were measured from 50 MHz to 18 GHz, and a small-signal bias-dependent model was implemented using Libra software. This model was used with… (More)