A compact iodine-stabilized HeNe laser and crossover resonances at 543 nm

Abstract We have constructed a compact iodine-stabilized 543 nm HeNe laser using the third-harmonic locking technique. From the signal-to-noise ratio, the noise-limited-stability would be better than 1×10 −12 for integration time >1 s. Moreover, several crossover resonances of R(12) 26–0 line are investigated and identified. Two crossover resonances are found adjacent to the hyperfine component a 9 , the recommended wavelength standard. Instead, we suggest the hyperfine component b 10 of R(106) 28–0 line as the wavelength standard for the absence of neighboring main lines or crossover resonances.

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