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Fig. 1 | Nanoscale Research Letters

Fig. 1

From: Demonstration of High-Power and Stable Single-Mode in a Quantum Cascade Laser Using Buried Sampled Grating

Fig. 1

a The diagram of uniform grating structure; the denotations of I, II, III, and IV represent the possible four kinds of cleaved end facet positions. b The absolute values of mode loss difference for different cleaved end facet positions of I, II, III, and IV, and the abscissa is represented as a corresponding phase of cleaved facet positions of I, II, III, and IV. cf The spectra of mode losses of the possible four kinds of cleaved end facet positions of I, II, III, and IV, respectively

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