| Patent Number |
Title Of Patent |
Date Issued |
| 7593644 |
Synchronization of lasers and RF sources using timing information transfer in the optical domain |
September 22, 2009 |
| A RF-synchronization system includes a laser that creates pulse trains for synchronization. A modulation means transfers the timing information of the pulse train into an amplitude modulation of an optical or electronic system. A synchronization module changes the driving frequency of th |
| 7555023 |
Quasi-synchronously pumped lasers for self-starting pulse generation and widely tunable systems |
June 30, 2009 |
| A laser system for generating self-starting few cycle laser pulses or widely tunable laser pulses is provided. The laser system includes a modelocked pump source that provides a pulsed pump signal. A gain medium receives the pulsed pump signal. A resonator structure includes the gain |
| 7433043 |
Two-dimensional spectral shearing interferometry for ultrafast pulse characterization |
October 7, 2008 |
| The phase spectrum of an ultrashort pulse is measured based on two-dimensional spectral shearing interferometry with zero delay. The measurement is performed utilizing an optical source pulse from which is extracted a short pulse and from which a chirped component is generated. The c |
| 7405868 |
Cavity-enhanced optical parametric amplification |
July 29, 2008 |
| A simple and low-cost apparatus amplifies short optical pulses (e.g., in the femtosecond domain) to high pulse energies using energy stored in an enhancement cavity. The enhancement cavity is first filled with pump light from a pump laser; and a signal laser then directs a signal pulse |
| 7397567 |
Balanced optical-radiofrequency phase detector |
July 8, 2008 |
| A balanced optical-RF phase detector for the extraction of low-jitter radiofrequency (RF) signals from optical pulse trains is demonstrated. The extraction of the low-jitter radiofrequency signals is based on the precise phase detection by use of a differentially biased Sagnac-loop i |
| 7391850 |
Compact, high-flux, short-pulse x-ray source |
June 24, 2008 |
| An x-ray source that can produce high-brilliance x-rays at a low cost and from a small footprint includes a radiofrequency (RF) photoinjector, an accelerator module (such as a linear superconducting accelerator moducle), a high-power optical laser apparatus, and a passive enhancement |
| 7369714 |
High-speed electronic carrier-injection modulator based on high-index-contrast Si-waveguide |
May 6, 2008 |
| An opto-electronic modulator includes a Mach-Zehnder structure that comprises p.sup.+in.sup.+-diodes in both arms of the Mach-Zehnder structure. The Mach-Zehnder structure is formed by waveguides so as to confine an optical mode in the opto-electronic modulator. |
| 7256940 |
Multi-layer thin-film broadband beam splitter with matched group delay dispersion |
August 14, 2007 |
| A beam splitter includes a substrate. A thin film layer stack is formed on the substrate to achieve the same group delay dispersion (GDD) for both reflection and transmission from any input port and output port of said beam splitter. |
| 7190524 |
Process for fabrication of high reflectors by reversal of layer sequence and application thereof |
March 13, 2007 |
| An optical reflector includes an optical reflective element that comprises alternating layers of high and low index layers. A new substrate is bonded on the optical reflective element. The sequence of layers in the reflective element is reversed in order such that the layers grown first |
| 6904187 |
Method of efficient carrier generation in silicon waveguide systems for switching/modulating pur |
June 7, 2005 |
| An optical switch/modulating device includes a pump waveguide that provides a pump light to the switch/modulating device. A waveguide element is positioned parallel to the pump waveguide and receives the pump light that causes the waveguide element to switch or modulate a signal light ru |
