05128798 is referenced by 29 patents and cites 30 patents.

Apparatus is described for achieving wavelength selection. Furthermore, the apparatus exhibits very high wavelength resolution, stable operation and rapid returning. A bundle of multi-wavelength light, entering the device, is acoustooptically deflected. This is done by driving two orthogonal acoustic transducrs of the deflector with two suitable frequencies fx and fy. The light so deflected passes first through a wedge etalon having a taper along the X-axis and then through a second wedge etalon having a taper along the Y-axis. The pair of wedges forms two, single-cavity etalons. Depending on the choice of fx and fy, any wavelength within the wavelength range covered by the two, single-cavity etalons can be selected rapidly and accurately.

Title
Addressable wedge etalon filter
Application Number
7/652839
Publication Number
5128798
Application Date
February 7, 1991
Publication Date
July 7, 1992
Inventor
Franklin F Tong
Stamford
CT, US
Pierre A Humblet
Cambridge
MA, US
Donald F Bowen
Stamford
CT, US
Agent
Ratner & Prestia
Assignee
International Business Machines Corporation
NY, US
IPC
G01B 9/02
G02B 26/08
G02F 1/33
G02F 1/03
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