Agilent Technologies

About: Agilent Technologies is a company organization based out in Santa Clara, California, United States. It is known for research contribution in the topics: Signal & Mass spectrometry. The organization has 7398 authors who have published 11518 publications receiving 262410 citations. The organization is also known as: Agilent Technologies, Inc..

Coherent optical spectrum analyzer

Abstract: In this letter, we demonstrate coherent optical spectrum analysis with /spl sim/70-dB dynamic range based on a swept-tuned optical local oscillator and a coherent receiver operating in the 1.5-/spl mu/m wavelength hand. Measurement principles are presented along with high-resolution measurements of distributed feedback laser spectra.

Imaging device employing optical motion sensor as gyroscope

Abstract: A motion sensor configured to control compensation for movement of an imaging device receiving light representative of a selected scene on an image plane. The motion sensor includes and array of photoelements and a controller. The array of photoelements is configured to acquire successive images of features of an environment within a field of view of the motion sensor; including a first image of features and a second image of features acquired at a time interval after the first image, the first and second images including common features. The controller is configured to receive and correlate the first and second images to detect movement of the imaging device about a first and a second axis during the time interval by detecting differences in locations of the common features relative to the array of photoelements, and to provide first and second compensation signals based on the correlation to control opto-mechanical adjustments to counter detected movement of the imaging device about the first and second axes so as to maintain a substantially fixed relationship between the selected scene and the imaging plane.

De-embedment of optical component characteristics and calibration of optical receivers using rayleigh backscatter

Abstract: Method and system are disclosed for de-embedding optical component characteristics from optical device measurements. In particular, the invention uses frequency domain averaging of the RBS on both sides of an optical component to determine one or more of its optical characteristics. Where the RBS has a slope (e.g., as in the case of a lossy fiber), a frequency domain least square fit can be used to determine the optical component characteristics. In addition, the invention uses a reference DUT to correct for variations in the frequency response of the photoreceiver. A reference interferometer is used in the invention to correct for sweep non-linearity of the TLS. The optical component characteristics are then de-embedded from optical device measurements to provide a more precise analysis of the optical device.

A Shape-Persistent Quadruply Interlocked Giant Cage Catenane with Two Distinct Pores in the Solid State

Abstract: Discrete interlocked three-dimensional structures are synthetic targets that are sometimes difficult to obtain with "classical" synthetic approaches, and dynamic covalent chemistry has been shown to be a useful method to form such interlocked structures as thermodynamically stable prod- ucts. Although interlocked and defined hollow structures are found in nature, for example, in some viruses, similar structures have rarely been synthesized on a molecular level. Shape- persistent interlocked organic cage compounds with dimen- sions in the nanometer regime are now accessible in high yields during crystallization through the formation of 96 covalent bonds. The interlocked molecules form an unprecedented porous material with intrinsic and extrinsic pores both in the micropore and mesopore regime. The synthesis of mechanically interlocked molecules has evolved from being a scientific curiosity to a renowned subtopic in supramolecular chemistry. (1) Interlocked mole- cules, such as catenanes, rotaxanes, or trefoil knots, are "molecules" by definition because at least one covalent bond has to be broken to decompose two or more molecular parts, which are mechanically interlocked and interact only through noncovalent interactions. (1) After catenanes had been pre- dicted theoretically, their first statistical syntheses suffered from low yields. (2) Later on, Sauvage and co-workers intro- duced a remarkable synthetic improvement by using metal templates to significantly increase the yields. (3) The groups of Hunter, Vcgtle, Leigh as well as Stoddart developed methods that are based on weak supramolecular interactions, for example, hydrogen bonding or p-p stacking, to construct catenanes. (4, 5) Even multiple interlocked rings, including

Method and apparatus for linear characterization of multiterminal single-ended or balanced devices

Abstract: One embodiment of the invention comprises a multiport test set 'MTS' that characterizes a multiterminal DUT (128). The multiport test set comprises a plurality of ports 'N-ports', a signal generator (100) that provides a test signal over a frequency range, a reference receiver (102) coupled (101) to the signal generator that measures the test signal to determine a reference value, and at least one test channel receiver that measures the test signal at each port of the multiport test set. the multiport test set further comprises a switching device (103), coupled between the signal generator, the plurality of ports of the multiport test set and the at least one test channel receiver, that couples the test signal to any port of the multiport test set and to the at least one test channel receiver. The multiport test set further comprises a device for determining S-parameters [S] of the DUT from the test signal measurements at each port of the multiport test set and the reference value, and for converting the S-parameters to a time domain representation.