Output Coupler - EKSMA 031-0050
An output coupler is a partially reflecting dielectric mirror used in a laser cavity. It transmits a part of the circulating intracavity power for generating a useful output from the laser. A low transmission output coupler leads to a low laser threshold, but also possibly to poor laser efficiency if the losses due to output coupling do not dominate over other parasitic losses in the laser cavity. The output coupler transmission is often chosen to maximize the achieved output power, although its optimum value may be lower or higher if there are other design purposes (minimizing the intracavity intensities or suppressing Q-switching instabilities in a passively mode-locked laser).
- Substrate Material: BK7
- Wavelength: 1064 nm
- Average Reflection: 50 %
- Average Transmission: 50 %
- Diameter: 12.7 mm
- Thickness: 3 mm
- Surface Flatness: <= Lambda/10
- Surface Quality: 20-10 scratch-dig
- Laser cavities
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