BACKGROUND In recent years interest in high resolution optical spectros copy has
increased. The following exemplary patents, pub lished patent applications, and …

In part, the invention relates to an optical coherence tomography system that includes one or
more phased-locked loop circuits. In one embodiment, the phased-locked loop circuit …

BACKGROUND Various types of imaging modalities such as ultrasound, magnetic
resonance imaging, optical coherence tomography (OCT) and others require different …

An RF signal generator has an optical part for outputting optical carrier signals separated in
optical frequency, and a modulator arranged to modulate the optical carrier signals with an …

Abstract Systems and methods for precision phase noise measurements of radio frequency
(RF) oscillators are provided. An RF signal under test can be modulated on a continuous …

A repetition rate (pulse) multiplier includes one or more beam splitters and prisms forming
one or more ring cavities with different optical path lengths that delay parts of the energy of …

According to one aspect, a multi-heterodyne system is disclosed, which comprises a first
laser source for generating multi-mode radiation having a frequency spectrum characterized …

A frequency comb laser providing large comb spacing is disclosed. At least one embodiment
includes a mode locked waveguide laser system. The mode locked waveguide laser …

A method for optical and electrical signal processing of a multi-heterodyne signal generated
by a multi-mode semi-conductor laser, for a system comprising two laser sources and an …

Examples of robust self-starting passively mode locked fiber oscillators are described. In
certain implementations, the oscillators are configured as Fabry-Perot cavities containing an …