Frequency-Agile Monolithic Micro-Laser with Ultra-Narrow Linewidth

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F29601-02-C-0058
Agency Tracking Number: 021NM-1655
Amount: $99,491.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
910 Technology Blvd, Suite K, Bozeman, MT, 59718
DUNS: 062674630
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Gregg Switzer
 Laser Physicist
 (406) 522-0388
 switzer@advr-inc.com
Business Contact
 Michael Kehoe
Title: Comptroller
Phone: (406) 522-0388
Email: kehoe@advr-inc.com
Research Institution
N/A
Abstract
"A method for generating a high power, continuous wave (cw) monolithic micro-laser with rapidly tunable, narrow linewidth output is proposed. The concept employs a semiconductor laser coupled to an electro-optically controlled Bragg waveguide in PotassiumTitanyl Phosphate (KTP) providing single frequency output. Frequency tuning is achieved by applying a voltage across the waveguide, thereby changing its index of refraction. The targeted tuning range is 30 GHz in 1 ms by applying 18 volts across thewaveguide. The output of the laser will be amplified to 1 Watt using a commercially available Yb-doped fiber amplifier. The combined system will provide a high power, rapidly tunable, single frequency output in a robust, monolithic package ideal fortracking fast moving objects in the atmosphere.KTP is an ideal medium for this application because of its high electro-optic figure of merit (~36 pm/V), high threshold for optical damage (~1 GW/cm2), low susceptibility to photo-refractive damage, and the ability to form low loss (0.5 dB/cm) waveguidesusing standard ion exchange techniques. KTP is transparent from 350 nm to 4500 nm, so the device will work for a wide variety of wavelengths ranges. The proposed monolithic laser will provide rapid tuning over a broad frequency range at high power making it ideal for laser tracking and spectroscopy."

* Information listed above is at the time of submission. *

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