Modeling of injection seeding of a pulsed high-pressure CO2 laser

Lourens R. Botha; Erich G. Rohwer

doi:10.1117/12.414078

25 January 2001 Modeling of injection seeding of a pulsed high-pressure CO₂ laser

Lourens R. Botha, Erich G. Rohwer

Proceedings Volume 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (2001) https://doi.org/10.1117/12.414078
Event: XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, 2000, Florence, Italy

Abstract

A computer model for injection seeding of a high pressure CO2 laser is presented. A rate equation model is used to predict single longitudinal mode (SLM) operation through injection of a cw seed into the resonator cavity. The coupled non-linear differential equations are solved using a Runge-Kutta method. Predictions for the minimum injection power required to produce SLM pulses are made. Detuning off resonance and the effect of the output coupler reflectivity and small signal gain on SLM operation is also considered. Conditions for stable SLM operation through injection of a cw seed are suggested. Single mode operation, even in the detuned case, can be attained due to the homogeneous broadening of the gain, and the rapid growth of the pulse under high gain conditions.

Citation Download Citation

Lourens R. Botha and Erich G. Rohwer "Modeling of injection seeding of a pulsed high-pressure CO₂ laser", Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); https://doi.org/10.1117/12.414078

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available