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Showing 1 to 14 of 14 for “"Distributed Feedback Laser"”.
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Distributed Feedback Laser Biosensor in Microplate Format
… was used to fabricate large area (~3x5 in2) distributed feedback laser biosensors (DFBLB) on flexible plastic substrates, which were subsequently incorporated into standard format 96-well microplates. A room temperature nanoreplica molding process was used to create subwavelength periodic …
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Instrumentation for a distributed feedback laser biosensor system
… biosensor system based on a vertically emitting distributed feedback laser is presented. The performance of the label-free high-resolution biomolecular detection system is optimized for use in applications that require the study of large quantities of parallel interactions that could be adversely …
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GaN-based distributed feedback laser diodes and their applications
… an increasing push to develop single frequency laser diodes (LDs) operating in the visible region of the electromagnetic spectrum, arising from the various potential applications, most notably in atomic cooling, visible light communication (VLC), medical diagnostics, and spectroscopy. This …
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Label-free biosensor based upon a vertically emitting distributed feedback laser
… for the fabrication of solid state organic distributed feedback laser (DFB) biosensors. The combined techniques enable the organic DFB laser to be uniformly fabricated over large surface areas upon a flexible plastic substrate, with an approach that is compatible with roll-based …
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Label-Free Biosensor Based Upon Replica-Molded Vertically Emitting Distributed Feedback Laser
The DFB laser sensor represents a departure from conventional passive resonant sensors insofar as the device actively generates its own narrowband high-intensity output without stringent requirements on the coupling alignments resulting in a simple, robust illumination and detection configuration. …
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Graded wavelength filter based wavelength detection for a distributed feedback laser biosensor
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2009-12-11T18:39:31Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Altaf_Kashif.docx: 2180725 bytes, checksum: 1eda169a0e92f4bceba9ba7fb757bf1c (MD5) Altaf_Kashif.pdf: 13322684 bytes, …
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Intensity noise suppression using a semiconductor optical amplifier: characterisations and applications
… low frequency noise of a highly coherent fibre distributed feedback laser are also presented.
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Tunable Optical Group Delay in Active Semiconductor Optoelectronic Devices
… demonstrated using wavelength conversion in a distributed-feedback laser. This scheme provides microwave phase shifts greater than 140° over GHz bandwidths, and is relatively insensitive to the input wavelength. Finally, future prospects for tunable delay elements based on optoelectronic …
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Integrated erbium lasers in silicon photonics
… of integrated erbium-doped aluminum oxide lasers on a silicon photonics platform. A key achievement in this work is a scalable laser design for high output power and ultra-narrow linewidth performance. Using a novel wavelength-insensitive design, a CMOS compatible waveguide structure is …
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Temperature and Spatial Hole Burning Effects in Semiconductor Lasers and Integrated Optical Devices
… are investigated in long-wavelength InP-based lasers and integrated optical devices, including Fabry-Perot (FP) lasers, distributed-feedback (DFB) lasers, and integrated electroabsorption modulator with DFB lasers (EML). First, the temperature dependence of bulk InGaAsP semiconductor laser …
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The physics of phase-noise mitigation : signal and filtering using microwave-photonic generation links
… resembles that of a regeneratively modelocked laser. Both oscillators achieve phase noise significantly lower than that of conventional free-running microwave oscillators. Our ultimate goal is the monolithic integration of the OEO onto a single chip of InP. Towards that end, we will show our …
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Switching and generation of ultrashort pulses using all-fibre devices
… are presented from a novel dual-wavelength laser configuration generating pulse trains with an ultra-low rms inter-pulse-stream timing jitter level of 630fs enabling application in ultrafast switching environments at data rates as high as 130GBits/s. In addition, the fibre NOLM is included …
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Non-linear optical properties of semiconductor nano-structures for slow light and wavelength conversion
… and at speeds up to 40 GHz. Using a pulsed laser, we also examine the signal-to-noise ratio for the converted signal with our measurements showing an excellent signal to noise ratio and no patterning effect for a 25 ps pulse. To examine the theoretical limit of four-wave mixing for short …
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Novel power scaling architectures for fibre and solid-state sources
… the output power of rare-earth ion doped fibre lasers and amplifiers, fibre amplified spontaneous emission sources, and solid state laser oscillators. Scaling output power from laser sources has been a topic of interest ever since the first laser was demonstrated. The development of new …