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Showing 1 to 14 of 14 for “"Optical Frequency Comb"”.
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Terahertz optical frequency comb generation
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Optical frequency comb generation in optical fibres
Optical frequency combs (OFC) constitute an array of phase-correlated equidistant spectral lines with nearly equal intensities over a broad spectral range. The adaptations of combs generated in mode-locked lasers proved to be highly efficient for the calibration of high-resolution (resolving power …
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Phase Noise Characterization of a Mode-Locked Quantum-Dot Coherent Optical Frequency Comb Source Laser
Modern coherent optical communication systems transmit 100 Gb/s dual-polarization quadrature phase shift keying (DP-QPSK) signals on each of the 100 channels in a dense wavelength division multiplexing (DWDM) system. Each of these channels require an individual optical carrier frequency to be …
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Wideband optical frequency comb generator using a phase velocity-matched lithium tantalate electro-optic modulator
A wideband optical frequency comb generator can be built using an electro-optic modulator that is driven at a frequency of several GHz and that is enclosed in an optical cavity. When light is circulated within the optical cavity, multiple passes through the modulator produce a spectrum centered at …
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Self-referenced 1.5 [mu]m fiber frequency combs at GHz repetition rates
Tremendous advances in recent years to the optical frequency comb, particularly frequency combs deriving from solid-state and fiber architectures, have enabled a host of important new applications to emerge - applications which include optical arbitrary waveform generation (OAWG), high-speed …
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Design, construction, and characterization of an ultra-sensitive, high-precision fast ion-beam spectrometer for the study of molecular ions
… work to use the noise immune cavity-enhanced optical heterodyne molecular spectroscopy (NICE-OHMS) technique in conjunction with a fast ion beam. Additionally, it is the first work outlining direct electronic spectroscopy in an ion beam. Direct spectroscopy of a fast molecular ion beam offers …
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New techniques for sub-Doppler spectroscopy of molecular ions
… the accuracy is typically limited by the laser frequency calibration. Two new techniques are described in this thesis: cavity enhanced velocity modulation spectroscopy (CEVMS) and ion beam spectroscopy. Each of these techniques was first implemented in the near-infrared spectral region using a …
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Monolithically integrated, high coherence frequency comb generation through on-chip gain switching
… networks are being widely considered. Optical frequency comb sources have the potential to reduce or eliminate the spectrally inefficient guard bands that are currently used to prevent cross-talk between adjacent channels. With their common laser source and fixed phase relation, …
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The NICE-OHVMS technique: realizing the full potential of precision molecular ion spectroscopy
Noise Immune Cavity Enhanced Optical Heterodyne Velocity Modulation Spectroscopy (NICE-OHVMS) is one of the most sensitive spectroscopic techniques specific to molecular ions. NICE-OHVMS relies on the combination of three separate techniques, each of which is a powerful tool. Cavity enhancement …
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Attosecond timing jitter modelocked lasers and ultralow phase noise photonic microwave oscillators
Photonic microwave oscillator based on optical frequency comb and ultrastable optical reference cavity represents the state-of-the-art solution to generate X-band microwaves of ultralow phase noise. Such high-quality microwave source enables a range of applications in which frequency stability and …
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All optical systems for terabit network era
… capacity demand drives the development of the optical fiber networks. Since optical super-channels carrying multi- Terabit/s transmissions are the next evolution of the optical links, future transmitters and receivers systems will be required to handle vast volume of information while …
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Parametric Frequency Comb Generation In Visible And Mid-Infrared Wavelengths With Integrated Silicon Nitride Ring Resonators
… we will focus on the nonlinear process of optical frequency comb generation, engineered for wavelengths outside of the standard telecom regime. In Chapter 1, we will begin with overall motivation for the field of silicon photonics. We will introduce basic theory of the origin of …
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Real-time characterization of transient dynamics in thulium-doped mode-locked fiber laser
Thulium (Tm) based high repetition rate compact optical frequency comb sources operating in the 2 µm regime with femtosecond pulse durations enable a wide range of applications such as precise micro-machining, spectroscopy and metrology. Applications such as metrology and spectroscopy rely on the …
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Fiber Bragg Grating-Based Sensors: Advanced Techniques in Coating and Interrogation for Biomedical Applications
L'abstract è presente nell'allegato / the abstract is in the attachment