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Power Laser for Eyesafe Coherent Lidar

Award Information

Department of Defense
Missile Defense Agency
Award ID:
Program Year/Program:
1995 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
135 S. Taylor Avenue, Louisville, CO 80027 0302
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 1995
Title: Power Laser for Eyesafe Coherent Lidar
Agency / Branch: DOD / MDA
Contract: N/A
Award Amount: $79,093.00


High power diode-pumped 2 micron lasers are of great interest for a variety of lidar applications, including long range hard target tracking and space-based coherent laser radar systems operating in the eye-safe region of the spectrum. Lidar modeling suggests that 0.5-1 J/pulse energies at pulse repetition frequencies of about 40 Hz will be sufficient to meet many lidar mission requirements. CTI has recently conceptualized novel approaches to the development of efficient 2 micron lasers, and propose to extend current medium energy development work to the high pulse energy/high average power regime. Our numerical models indicate that a 0.5 J/pulse laser operating at 40 Hz repetition frequency (20W average power) with an electrical-to-optical efficiency of 5-10% in a simple oscillator configuration, is feasible to build with off-the-shelf components available today. This is a significant advance over realistic estimates of conventional oscillator/amplifier configurations. Key features of the novel designs are described in the proposal. During Phase I we propose to make detailed model calculations of laser performance, and provide a conceptual design of a demonstrator system. Efficient high power lasers will find uses as transmitters in lidar systems and as freestanding units. Lidar applications (long-range/high altitude wind mapping from the ground, in-situ high-altitude turbulence measurements, flood illumination imaging, etc.) exist for reduced eye hazard, high energy, high efficiency laser sources. The proposed lasers will also be well-suited for medical applications, as well as industrial applications. The laser will also prove useful as a 2 micron pump source for optical parametric oscillators operating in the 2 to 9 micron spectral range for DIAL applications.

Principal Investigator:

Mark W. Phillips

Business Contact:

Small Business Information at Submission:

Coherent Technologies, Inc.
P.o. Box 7488 Boulder, CO 80306

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No