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Author | Miller, Aaron J.; Lita, Adriana E.; Calkins, Brice; Vayshenker, Igor; Gruber, Steven M.; Nam, Sae Woo | ||||
Title | Compact cryogenic self-aligning fiber-to-detector coupling with losses below one percent | Type | Journal Article | ||
Year | 2011 | Publication | Optics Express | Abbreviated Journal | Opt. Express |
Volume | 19 | Issue | 10 | Pages | 9102-9110 |
Keywords | TES | ||||
Abstract | We present a compact packaging technique for coupling light from a single-mode telecommunication fiber to cryogenic single-photon sensitive devices. Our single-photon detectors are superconducting transition-edge sensors (TESs) with a collection area only a factor of a few larger than the area of the fiber core which presents significant challenges to low-loss fiber-to-detector coupling. The coupling method presented here has low loss, cryogenic compatibility, easy and reproducible assembly and low component cost. The system efficiency of the packaged single-photon counting detectors is verified by the “triplet method†of power-source calibration along with the “multiple attenuator†method that produces a calibrated single-photon flux. These calibration techniques, when used in combination with through-wafer imaging and fiber back-reflection measurements, give us confidence that we have achieved coupling losses below 1 % for all devices packaged according to the self-alignment method presented in this paper. | ||||
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Call Number | RPLAB @ gujma @ | Serial ![]() |
666 | ||
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Author | Prober, D. E. | ||||
Title | Superconducting terahertz mixer using a transition-edge microbolometer | Type | Journal Article | ||
Year | 1993 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
Volume | 62 | Issue | 17 | Pages | 2119-2121 |
Keywords | HEB mixer, NbN, TES | ||||
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Notes | Recommended by Klapwijk | Approved | no | ||
Call Number | Serial ![]() |
244 | |||
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