Pattern-transmitting CO2 laser using arbitrarily shaped coupling-hole mirror

Satoshi Tanaka; Heihachi Sato

doi:10.1117/12.435888

8 August 2001 Pattern-transmitting CO₂ laser using arbitrarily shaped coupling-hole mirror

Satoshi Tanaka, Heihachi Sato

Proceedings Volume 4513, Optoelectronic Information Systems and Processing; (2001) https://doi.org/10.1117/12.435888
Event: Optoelectronic Information Systems and Processing, 2000, Vladivostok, Russian Federation

Abstract

A pattern transmitting laser is proposed to extract and transmit arbitrarily shaped beams by using coupling-hole mirrors having various shaped holes. This configuration is demonstrated in a slow axial-flow CO₂ laser. As simple examples the coupling mirrors with two holes and a donut (or ring)-shaped coupling-hole are fabricated by evaporating gold film on the ZnSe substrate onto which the circular masks or ring-shaped mask for two holes or a ring shaped hole are attached. The oscillation output from the two holes or ring- shaped hole is successfully obtained and the transmission characteristics are investigated. Image transmission is also demonstrated using a lens system composed of two Fourier transform lenses.

Citation Download Citation

Satoshi Tanaka and Heihachi Sato "Pattern-transmitting CO₂ laser using arbitrarily shaped coupling-hole mirror", Proc. SPIE 4513, Optoelectronic Information Systems and Processing, (8 August 2001); https://doi.org/10.1117/12.435888

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