Is it possible to get a Gaussain TEM00 mode in a resonator when we added an aperture with dimension less than beam waist in its position? | ResearchGate
888 nm pumping of Nd:YVO4 for high-power TEM00 lasers – Cuvillier Verlag
An Efficient TEM00 Compact Diode-Laser-Pumped Er:YAG Laser
635nm 100mW Single Mode Fiber Coupled Laser TEM00 Mode Laser