Browsing Conference Publications by Author "Jacobs, Cobus"

Now showing items 1-9 of 9

Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system

Author: Bollig, C ; Strauss, Hencharl J ; Esser, MJD ; Koen, W ; Schellhorn, M ; Preussler, D ; Nyangaza, K ; Jacobs, Cobus ; Bernhardi, EH ; Botha, LR Date: Jun 2009 Ho:YLF is an attractive laser material for 2 µm high energy sources since it has a much longer upper laser level lifetime (~14 ms) and higher emission cross section than Ho:YAG. In addition, the very weak thermal lens on the polarisation helps ... Read more
Efficient fiber-laser-pumped Ho:YLF oscillator and amplifier utilizing the transmitted pump power of the oscillator

Author: Strauss, Hencharl J ; Koen, W ; Bollig, C ; Esser, MJD ; Preussler, D ; Nyangaza, K ; Jacobs, Cobus Date: Jun 2009 In this paper, researchers have demonstrated that a Ho:YLF oscillator and amplifier system can be designed in a compact setup where the pump power from an unpolarized fibre laser utilized efficiently. The system produced more than 20 mJ energy ... Read more
Efficient Ho:YLF laser pumped by a Tm:fiber laser

Author: Koen, W ; Jacobs, Cobus ; Collett, O ; Esser, MJD Date: Oct 2013 A thulium fiber laser pumped Ho:YLF laser delivering 45.1 W in a near diffraction limited beam when pumped with 84.7 W is demonstrated. The optical-to-optical efficiency of 53 % compares favorably with similar Ho:YAG lasers. Read more
Efficient Ho:YLF laser pumped by a Tm:fiber laser

Author: Koen, W ; Jacobs, Cobus ; Collett, O Date: Jul 2013 Laser sources emitting in the 2 micron region is of particular interest for applications in medicine, remote sensing (LIDAR) and directed infra-red countermeasures. In addition, they are also desirable pump sources for efficient optical ... Read more
Mathematical model of an optically pumped molecular laser

Author: Botha, LR ; Bollig, C ; Esser, D ; Jacobs, Cobus ; Preussler, D Date: Jul 2009 A mathematical model was developed that accurately predicts the performance of an optically pumped HBr laser. Relatively high conversion efficiency was achieved. Tm pumped Ho:YLF is a viable source for pumping HBr laser, while HBr can be ... Read more
Multi-pass 1.9 um Tm:YLF slab laser pump source

Author: Strauss, Hencharl J ; Burd, SC ; Koen, W ; Esser, MJD ; Jacobs, Cobus ; Collett, OJP ; Nyangaza, K ; Preussler, D ; Bollig, C Date: Sep 2010 A novel multi-pass Tm: YLF laser was demonstrated with an improvement in efficiency, footprint and cost over a two diode stack pumped, single pass system. 100 W of output power from 261 W of incident diode pump power with a slope efficiency ... Read more
Pulse energy control through dual loop electronic feedback

Author: Jacobs, Cobus ; Kriel, S ; Bollig, C ; Jones, T Date: Jul 2006 This presentation provides the overview of what laser pulse energy control is and why we need it. The simulation, experimental setup and results are shown Read more
Rugged and compact mid-infrared solid-state laser for avionics applications

Author: Esser, MJD ; Preussler, D ; Sharma, Ameeth ; Jacobs, Cobus ; Bollig, C Date: Nov 2009 In order to demonstrate the feasibility of a helicopter-based application using advanced laser technology, the authors have developed a rugged and compact mid-infrared solid-state laser. The requirement for the laser was to simultaneously ... Read more
Simulaser, a graphical laser simulator based on Matlab Simulink

Author: Jacobs, Cobus ; Koen, Wayne S Date: Jul 2016 We present a single-element plane-wave laser rate equation model and its implementation as a graphical laser simulation library using Matlab Simulink. Simulink’s graphical interface and vector capabilities provide a unique layer of abstraction ... Read more

Now showing items 1-9 of 9

Browse

All of ResearchSpace
This Collection
- By Issue Date
- Authors
- Titles
- Subjects
- Publication Type
- Cluster
- Impact Area

Quick Links

Legislation and compliance

General Enquiries

Tel: + 27 12 841 2911
Email: callcentre@csir.co.za

Physical Address
Meiring Naudé Road
Brummeria
Pretoria
South Africa

Postal Address
PO Box 395
Pretoria 0001
South Africa

Social Connect

Resources on this site are free to download and reuse according to associated licensing provision. Please read the terms and conditions of usage of each resource.

Browsing Conference Publications by Author "Jacobs, Cobus"

Browsing Conference Publications by Author "Jacobs, Cobus"

Browse

All of ResearchSpace

This Collection

Quick Links

Legislation and compliance

General Enquiries

Social Connect