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Proceedings Paper

Compact sources for eyesafe illumination
Author(s): N. Baranova; R. Pu; K. Stebbins; I. Bystryak; M. Rayno; K. Ezzo; C. DePriest
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Paper Abstract

Q-Peak has demonstrated a novel, compact, pulsed eyesafe laser architecture operating with <10 mJ pulse energies at repetition rates as high as 160 Hz. The design leverages an end-pumped solid-state laser geometry to produce adequate eyesafe beam quality (M2 ~4), while also providing a path towards higher-density laser architectures for pulsed eyesafe applications. The baseline discussed in this paper has shown a unique capability for high pulse repetition rates in a compact package, and offers additional potential for power scaling based on birefringence compensation. The laser consists of an actively Q-switched oscillator cavity producing pulse-widths <30 ns, and utilizing an end-pumped Nd: YAG gain medium with a Rubidium Titanyl Phosphate (RTP) electro-optical crystal. The oscillator provides an effective front-end-seed for an optical parametric oscillator (OPO), which utilizes Potassium Titanyl Arsenate (KTA) in a linear OPO geometry. This laser efficiently operates in the eyesafe band, and has been designed to fit within a volume of 3760 cm3. We will discuss details of the optical system design, modeled thermal effects and stress-induced birefringence, as well as experimental advantages of the end-pumped laser geometry, along with proposed paths to higher eyesafe pulse energies.

Paper Details

Date Published: 17 February 2017
PDF: 6 pages
Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 1008209 (17 February 2017); doi: 10.1117/12.2252858
Show Author Affiliations
N. Baranova, Q-Peak, Inc. (United States)
R. Pu, Celera Motion (United States)
K. Stebbins, Q-Peak, Inc. (United States)
I. Bystryak, Q-Peak, Inc. (United States)
M. Rayno, Q-Peak, Inc. (United States)
K. Ezzo, Q-Peak, Inc. (United States)
C. DePriest, Q-Peak, Inc. (United States)

Published in SPIE Proceedings Vol. 10082:
Solid State Lasers XXVI: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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