An Ultra-Narrow Tunable Optical Bandpass Filter

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,980.00
Award Year:
2004
Program:
SBIR
Phase:
Phase II
Contract:
NNL04AA13C
Agency Tracking Number:
022418
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
MetroLaser, Inc.
2572 White Road, Irvine, CA, 92614
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
188465819
Principal Investigator:
Vladimir Markov
Principal Investigator
(949) 553-0688
vmarkov@metrolaserinc.com
Business Contact:
Christina Arnold
Business Official
(949) 553-0688
carnold@metrolaserinc.com
Research Institution:
n/a
Abstract
Ultra-narrow bandpass tunable filters in the visible and infrared spectral regions are needed for the remote sensing industry and NASA in particular. Such filters are applicable in high-resolution spectroscopy, tunable lasers, and multi-spectral and hyperspectral imaging. During Phase I, we performed a feasibility study of an innovative ultra-narrow bandpass filter based on unique features of a photonic crystal interferometer (PCI), and did a meticulous and extensive analysis and modeling of its characteristics. We then assembled and tested a PCI breadboard and demonstrated its tunability over a 1 nm spectral range with a bandpass close to 0.02 nm and an acceptance angle close to 1o. The acquired data demonstrated conclusively that an approach based on the PCI concept provides an optimal solution for designing and constructing an ultra-narrow tunable optical bandpass filter. During Phase II we will design, build, deliver to NASA, and perform field testing of a compact and robust prototype module of a 1? diameter PCI filter with a tunability range of 1 nm and a bandpass range of 0.01 nm at 50% transmittance range. The Phase II design should allow for retrofitting the PCI to existing instruments and provide a stable performance in harsh operating environments.

* information listed above is at the time of submission.

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