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HeNe Applications

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HNL020R(L), HNL050R(L) Red HeNe Laser System Chapter 2: Description

Rev B, February 27, 2012 2.1.3. HeNe Laser Overview

Figure 1 Optical Resonator Cavity

Typical HeNe Parameters Beam Diameter (D)

Cavity Length (L)

Reflectivity at High Reflector (HR) Transmission at Output Coupler (OC)

2.1.4. HeNe Linewidth

HeNe Applications

(2)

HNL020R(L), HNL050R(L) Red HeNe Laser System Chapter 2: Description

Rev B, February 27, 2012

Figure 2 HeNe Gain Curve Showing Cavity Modes

Figure 3 HeNe Energy Levels

(3)

HNL020R(L), HNL050R(L) Red HeNe Laser System Chapter 2: Description

Rev B, February 27, 2012

Figure 4 HeNe Visible Laser Lines

2.1.5. HeNe Polarization

Unpolarized (Randomly Polarized) Beam

Linear Polarized Beam

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