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https://www.selleckchem.com/products/ami-1.html We report a compact, scalable, and high-performance superconducting nanowire single-photon detector (SNSPD) array by using a multichannel optical fiber array-coupled configuration. For single pixels with an active area of 18 µm in diameter and illuminated at the telecom wavelength of 1550 nm, we achieved a pixel yield of 13/16 on one chip, an average system detection efficiency of 69% at a dark count rate of 160 cps, a minimum timing jitter of 74 ps, and a maximum count rate of ∼40Mcps. The optical crosstalk coefficient between adjacent channels is better than -60dB. The performance of the fiber array-coupled detectors is comparable with a standalone detector coupled to a single fiber. Our method is promising for the development of scalable, high-performance, and high-yield SNSPDs.An ideal wave-front sensor (WFS) for an adaptive optics system prioritizes three properties high sensitivity, wide dynamic range, and a linear relationship between the actual and estimated wave fronts. WFSs currently in operation can claim superiority in only two of these properties. For example, the Shack-Hartmann WFS (SHWFS) has a linear response and remains effective under large aberrations, but its sensitivity to low spatial frequencies is limited [Proc. SPIE5490, 1177 (2004)PSISDG0277-786X10.1117/12.550786]. The pyramid WFS (PyWFS) [J. Mod. Opt.43, 289 (1996)JMOPEW0950-034010.1080/09500349608232742] can also be operated in a linear control system [Opt. Express14, 11925 (2006)OPEXFF1094-408710.1364/OE.14.011925] and offers excellent sensitivity when used with an unresolved beacon but saturates quickly in the presence of large aberrations. The dynamic range can be extended by modulating the beacon about the pyramid prism tip, but at the expense of its sensitivity. This Letter describes a hybrid WFS (HyWFS) that combines the SHWFS and PyWFS, capturing the desirable features of both. The optical design of the HyWFS mimics the appearance of a

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