Title :
Cascaded acoustooptic/fiber Fabry-Perot filter with finesse over 2000
Author :
Smith, D.A. ; Choy, M.M. ; Alessandro, A.D. ; Baran, J.E. ; Rajhel, A.W.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
A compound optical filter consisting of an integrated acoustooptic filter in series with a fiber Fabry-Perot filter possesses a very high effective finesse of over 2000 as well as the unique multichannel passband capability of the acoustooptic filter. The fine-grain element in this pair is a narrow (0.5-AA) passband Fabry-Perot filter, and the coarse-grain element is a wide tuning range (130-nm) polarization-independent integrated acoustooptic filter. The composite device has the narrow passband of the Fabry-Perot, the wide tuning range of the acoustooptic filter and the tuning speed of the faster acoustooptic filter (5 mu s).<>
Keywords :
acousto-optical devices; band-pass filters; integrated optics; optical communication equipment; optical fibres; optical filters; tuning; 5 mus; cascaded filter; coarse-grain element; compound optical filter; fiber Fabry-Perot filter; fine-grain element; integrated acoustooptic filter; multichannel passband capability; narrow passband; tuning speed; very high effective finesse; wide tuning range; Fabry-Perot; Frequency synchronization; Laser tuning; Optical fiber filters; Optical filters; Optical ring resonators; Ovens; Passband; Resonant frequency; Temperature control;
Journal_Title :
Photonics Technology Letters, IEEE
