Media.Player

Stable Monolithic Interferometer for High Precision Calibration

IP Title

Stable Monolithic Interferometer For Wavelength Calibration

Detailed Technology Description

None

Supplementary Information

Inventor: Wan, Xiaoke | Ge, Jian
Priority Number: US8570524B2
IPC Current: G01B000902 | G01J000345
US Class: 356451
Assignee Applicant: University of Florida Research Foundation Inc.inesville
Title: Stable monolithic interferometer for wavelenghth calibration
Usefulness: Stable monolithic interferometer for wavelenghth calibration
Novelty: Wavelength calibration method of spectral instrument involves adjusting spectral instrument based on comparison of test data and reference data

Industry

Optics

Sub Category

Optical Element

Application Date

Aug 3, 2010

Application No.

8,570,524

Others

*Abstract

Invention

The University of Florida is seeking companies interested in commercializing a low-cost, high-quality wavelength calibration standard using a precise and efficient Michelson interferometer. Other systems currently in use are attractive because of their simplicity and minimal expense, but now it has been realized that utilizing a stable Michelson interferometer as a calibration source produces an unparalleled advantage in wavelength and special multiplexing. Also, thanks to the technical breakthroughs in design and fabrication of monolithic Michelson interferometers, the overall stability has been improved, and the manufacturing expense has been significantly reduced. Researchers at the University of Florida have developed this novel system that demonstrates significant advantages in precision, ease in utility, compatibility, multiplexing capacity, stability and bandwidth.

Application

Michelson interferometer used as a wavelength calibration reference for spectrometers, tunable lasers or other spectral instruments and as a stable wavelength reference for laser wavelength stabilization or characterization

Advantages

• Able to achieve an optimal sensitivity limit, making it more compatible to various spectral instruments in high precision calibration
• Innovative design and fabrication, improving stability and reducing manufacturing expenses
• Higher throughput because of filed compensation advantage, making it highly effective in weak light applications
• Expanded wavelength coverage, increasing the advantage in wavelength and special multiplexing capacity

Technology

This system encompasses two new breakthroughs for using a stable Michelson interferometer in wavelength calibration; as a reference for spectrometers, tunable lasers or other spectral instruments and as a stable wavelength reference for laser wavelength stabilization or characterization. A stable Michelson interferometer can reach the optimal sensitivity needed for calibration. Because of the simple sinusoid frequency response of a Michelson interferometer, the phase interpretation is very convenient and the accuracy is often determined by the sensitivity limit. Current systems only operate at either too high or too low of a sensitivity level to be very effective, making them more complicated. Using the Michelson interferometer, it is more compatible to various spectral instruments in high precision calibration. Using the new inventions in interferometer design and fabrication, Michelson interferometer becomes competitive in cost as well. This stable monolithic Michelson interferometer is ultimately more attractive and has numerous applications.

*IP Issue Date

Oct 29, 2013

*IP Publication Date

Feb 10, 2011

*Principal Investigator

Name: Xiaoke Wan

Department:

Name: Jian Ge

Department:

Country/Region

USA