High-Power, Narrow Linewidth Laser Sources for Alkali Atoms

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W91CRB-11-C-0010
Agency Tracking Number: 08SB2-0361
Amount: $749,330.00
Phase: Phase II
Program: SBIR
Awards Year: 2010
Solitcitation Year: 2008
Solitcitation Topic Code: SB082-017
Solitcitation Number: 2008.2
Small Business Information
Vescent Photonics
4865 E. 41st Ave, Denver, CO, -
Duns: 001126971
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mike Anderson
 (303) 296-6766
Business Contact
 Scott Rommel
Title: VP
Phone: (303) 296-6766
Email: rommel@vescentphotonics.com
Research Institution
The purpose of this proposal is to produce high-power, narrow-linewidth (~1 MHz or less), robust, turnkey laser sources that will meet the requirements of emerging cold-atom sensors. The goal of this Phase II effort is to develop a frequency-agile diode laser system with an output power of 1000 mW. This single-laser source can be modulated with sidebands at up to 10 GHz for repumping operations, and can be frequency tuned in under 50 ƒÝs for various operations needed for atom trapping and cooling, readout, and BEC production. The laser diodes at the heart of the systems are a master oscillator power amplifier (MOPA) configuration with a distributed Bragg reflector (DBR) section forming the master oscillator. Another goal of the Phase II effort is to develop a liquid-crystal spatial light modulator with 65 dB of contrast in the dark state and capable of producing 100 ƒÝs pulses. Over 150 dB of total isolation is possible by exploiting the laser detuning capability and the shuttering function of the power amplifier.

* information listed above is at the time of submission.

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