Modeling of pulse propagation in a four level atomic medium for gyroscopic measurements

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,954.00
Award Year:
2011
Program:
STTR
Phase:
Phase I
Contract:
N68335-11-C-0415
Award Id:
n/a
Agency Tracking Number:
N11A-005-0102
Solicitation Year:
2011
Solicitation Topic Code:
N11A-T005
Solicitation Number:
2011.A
Small Business Information
UA Science and Technology Park, 9030 S. Rita Road, Suite #120, Tucson, AZ, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
014750785
Principal Investigator:
DanNguyen
Optical Modeling Engineer
(520) 799-7419
ntdan@npphotonics.com
Business Contact:
JamesFountain
Director, Contract Admini
(520) 799-7424
fountain@npphotonics.com
Research Institute:
University of Arizona
Sherry L Esham
PO BOX 3308
888 N. Euclid Ave., Ste 510
Tucson, AZ, 85722-3308
(520) 626-6000

Abstract
We propose to develop numerical methodologies that can be used as alternatives to standard finite-difference time-domain algorithms, and that will offer substantial reductions in numerical complexity (notably CPU-time requirements) without the need to trade-off flexibility for overall robustness. In the initial phase, we propose a two-pronged approach, in which we evaluate two alternatives: (i) a time-dependent transfer matrix (TDTM) approach; and (ii) a slowly-varying envelope function (SVE) approach. In Phase I, we will develop both methodologies, assess their performance characteristics, and choose the best for continued development. Comparative evaluations will be done by numerically solving the relevant equations and comparing performance with currently existing Navy codes. Both proposed methods (TDTM and SVE) are suitable for dealing with co- and counter-propagating beams, and for including the full nonlinear interaction between light fields and four-level N-scheme atomic systems. Hence, both schemes are suitable for simulating ring-resonator gyroscopes with Sagnac phase enhancements due to EIT-like quantum coherences. In Phase II, we would develop a full-scale numerical model, and, if requested, fabricate a prototype fiber-optic gyroscope based on NP Photonics"specialty fiber, and fiber laser capabilities.

* information listed above is at the time of submission.

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