Patents

Patents listed here reflect only technologies patented from FY 2018-present. To view all of NIST's patented technologies, visit the NIST pages on the Federal Laboratory Consortium website.

Displaying 1 - 4 of 4

Serrodyne Frequency Shift Spectrometer and Serrodyne Frequency Shifting

NIST Inventors

Sean Bresler , John R. Lawall and Benjamin Reschovsky

Serrodyne modulation (i.e., using a sawtooth waveform to produce a linear phase chirp) is performed using an electro-optic phase modulator to provide the needed frequency shift.

Sound Pressure Metrology Instrument And Determining Sound Pressure From Index Of Refraction

NIST Inventors

Richard A. Allen , Randall P Wagner , Benjamin Reschovsky and Akobuije Chijioke

A sound pressure metrology instrument determines sound pressure from index of refraction and includes: a light source that produces source light; the optical cavity that: receives an acoustic field from the sound source; receives the source light from the light source; produces acoustic-modified

Typical radiofrequency combs generated by a direct digital synthesizer (left two panels) and an arbitrary waveform generator (right two panels). The far more expensive arbitrary waveform generator produces combs that are only marginally flatter than the direct digital synthesizer. After normalization, both combs result in similar spectroscopic signal-to-noise ratios.

Direct Digital Chirp Synthesizer And Generating A Chirped Optical Frequency Comb

NIST Inventors

Benjamin Reschovsky

A new approach for electro-optic frequency comb generation, which overcomes the high cost, size, and power consumption of arbitrary waveform generators while offering higher frequency agility.

Calibration Apparatus And Calibrating A Laser Doppler Vibrometer

NIST Inventors

Michael Gaitan , Benjamin Reschovsky and Akobuije Chijioke

A new approach to characterize the performance of a laser Doppler vibrometer (LDV). The method uses two acousto-optic modulators to frequency shift the light from an LDV by a known quantity to create a synthetic velocity shift that is traceable to a frequency reference. Results are presented for

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