Laser resonator_ILaser resonator_Other parts_Products

Parameters & Specifications

Key Components & Basic Architecture

Component	Function
Rear Mirror (High Reflector)	Reflects ~99.9% of light back into the cavity to maximize internal amplification.
Output Coupler	Partially reflective mirror allowing a fraction of light to exit as the usable output beam.
Cavity Length ( $L$ )	Determines the resonant frequencies (longitudinal modes) and standing wave spacing.

Advantages

Providing Positive Optical Feedback: The resonator bounces light repeatedly back and forth through the gain medium via highly reflective mirrors. This forces photons to undergo multiple amplification passes via stimulated emission rather than escaping instantly.
Selecting Specific Frequencies (Monochromaticity): By acting as a Fabry-Pérot interferometer, the resonator only supports standing waves whose wavelengths fit integer multiples into the cavity's optical path length. Unwanted wavelengths experience destructive interference, ensuring high spectral purity.
Shaping the Spatial Beam Profile: The geometric alignment and curvature of the resonator mirrors restrict how light rays bounce. This controls the transverse mode profile ( $\text{TEM}_{nm}$ ) and produces low-divergence, high-quality Gaussian beams.
Extracting the Output Beam: One end of the resonator consists of a partially transparent mirror called an Output Coupler. It retains most of the circulating energy inside the cavity to sustain lasing while leaking a precise percentage (e.g., 1–10%) to form the external laser beam.

Services

We always put our commitment to customers in the first place and enforce industry product quality standards.

Under normal circumstances, all products covered in this booklet have a shelf life of one year from the day they are delivered to the customer, and the warranty time is calculated as if the product were not opened in its packaging. After opening the package and using it, it is not covered by the warranty period, except for the laser cutting head.

We ensure the parameters of the products, if the product quality is not qualified, we will give free replacement.