국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Characterization of Photoreceivers for LISA
저자	Cervantes, F. Guzman;; Livas, J.;; Silverberg, R.;; Buchanan, E.;; Stebbins, R.
Keyword	BANDWIDTH;; DRAG REDUCTION;; LOW NOISE;; PHOTODIODES;; QUADRANTS;; RECEIVERS
URL	http://hdl.handle.net/2060/20110007350
보고서번호	none
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	LISA will use quadrant photo receivers as front-end devices for the phase meter measuring the motion of drag-free test masses in both angular orientation and separation. We have set up a laboratory testbed for the characterization of photo receivers. Some of the limiting noise sources have been identified and their contribution has been either measured or determined from the measured data. We have built a photo receiver with a 0.5 mm diameter quadrant photodiode with an equivalent input noise of better than 1.8 pA/(square root of)Hz below 20 MHz and a 3 dB bandwidth of 34 MHz.