USA flag logo/image

An Official Website of the United States Government

Monolithic Rare Earth Doped PTR Glass Laser

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2010 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
OptiGrate Corporation
FL Orlando, FL 32826-3230
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2010
Title: Monolithic Rare Earth Doped PTR Glass Laser
Agency: NASA
Contract: NNX10CD50P
Award Amount: $99,991.00


Development of airborne and spaceborne laser systems dictates a number of extremely challenging requirements for such fine optical devices. These requirements include minimizing weight and volume, increasing of power and brightness, high tolerance to mechanical and acoustic vibrations and ionizing radiation. Solid state lasers provide the best parameters which are necessary for free space optical communications, remote sensing, etc. However, all such lasers require fine alignment and, therefore, are very sensitive to vibrations, thermal gradients, etc. The ideal situation would be if all elements of a laser would be incorporated in the volume of a gain medium. We propose a completely new approach to the problem. Researchers at CREOL have demonstrated that it is possible to produce co-doping of a photo-thermo-refractive (PTR) glass with Nd. It was found that absorption and luminescence properties of Nd in PTR glass are the same as for all silicate glasses. It is important that this type of silicate glass can be successfully doped with all rare earth ions, e.g. with Nd, Yb, Er, Tm, etc. At the same time, it was shown that PTR glass keeps it photosensitivity. This means that it is possible to record volume holograms in this material. A combination of good lasing properties and phase photosensitivity enables a new approach to all-solid-state laser. It became possible to record volume Bragg gratings in the volume of laser glass. In this case, all alignment will be done in the process of recording and no misalignment is possible in any conditions of exploitation. Thus, the proposed approach enables creation of a monolithic solid state laser. We expect to study luminescence properties and develop a technology of recording Bragg mirrors in the volume of gain medium and demonstrate diode pumped lasing in Phase I project. In the case of success, we expect to study semiconductor crystals precipitation in PTR glass and demonstrate a monolithic pulsed laser in Phase II project.

Principal Investigator:

Vadim Smirnov
Principal Investigator

Business Contact:

Igor Ciapurin
Business Official
Small Business Information at Submission:

OptiGrate Corporation
3267 Progress Drive Orlando, FL 32826

EIN/Tax ID: 522197299
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No