Advanced Solid State Lasers for Lidar Systems

Table of Contents

Advanced Solid State Lasers for Lidar Systems

What is Q-Peak???

Credits

Outline

Properties of Compact Laser Head (CLH)

Input-Output curves for CLH are independent of pulse rate to 30 Hz

CLH Photograph

Optical Parametric Oscillators (OPOs)

KTP-family OPOs are used as eyesafe sources

KTP OPO generated a record energy in 10ns pulses

KTP OPO engineered for CLH

Picture of complete OPO-based lidar

KTA OPOs generated record powers at 100 Hz

Biological Standoff Detection System (BSDS)

Laser-pumped, high-energy Ti:sapphire laser

Ti:sapphire input-output, 727-960 nm

Harmonic generation extends Ti:sapphire wavelength coverage for DIAL

Ti:sapphire provides high energies at fundamental and harmonics

Tandem OPO provides broad IR wavelength coverage

Tuning curves for Tandem OPO design

Input-output curves for KTA OPO

Next-generation lidar sources will be cw pumped

CW-pumped lidar sources

Nd:YLF “Gain Module” uses transverse pumping

Q-Switching results for single gain module show ? W above 10-kHz PRR

MOPA #1 design generates higher power

MOPA #2 design uses a two-gain-module oscillator, generates 0.6-MW pulses at 5 kHz

Two-gain-module oscillator generates 14-ns pulses at a 5-kHz pulse rate

Harmonic conversion generates visible, UV power

Ti:sapphire laser pumped by doubled Nd:YLF laser has 44% conversion efficiency at 10 kHz PRR

OPOs provide high power at eyesafe wavelengths

KTA and PPLN OPOs provide longer-wavelength IR

Closing Comments

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Author: Peter F. Moulton

Email: moulton@qpeak.com

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