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The helium-neon (HeNe) laser with its characteristic wavelength of 633 nm is one of the most well-known and successful laser systems. Although it was already invented in 1961 [1], the HeNe laser is still the basis for many optical metrology techniques and has found many applications in the fields of manufacturing, medicine and quantum optics. However, the range of implementations for emission at this...
For silicon photonics, specifically chip-level optical interconnects, an ultrahigh-speed low-energy-consuming laser that can be integrated onto a silicon (Si) wafer is an ideal element. Here, we report on a hybrid Si-on-chip micro-cavity laser structure with a potential of providing such characteristics. As shown in Fig. 1a, the laser structure is a vertical cavity, consisting of a high contrast grating...
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