Title:
電気的に同調可能な光学的フィルタ
Document Type and Number:
Japanese Patent JP4205856
Kind Code:
B2
Abstract:
A device for spatially separating components of frequency in a primary radiation beam comprising means for separating the primary radiation beam into a plurality of secondary radiation beams, a plurality of electrically biasable waveguides forming a waveguide array, each for transmitting a secondary radiation beam to an output, wherein each waveguide has an associated optical delay line having a corresponding optical delay time, wherein each of the optical delay times is different. The device also comprises means for applying a variable electric field across each of the waveguides such that the phase of the secondary radiation beams transmitted through each may be varied by varying the electric field. The secondary radiation beams output from each of the waveguides interfere in a propagation region with a secondary radiation beam output from at least one of the other waveguides so as to form an interference pattern comprising one or more maximum at various positions in the propagation region.
Inventors:
Boyne Colin Michael
Heaton John Michael
Wight david robert
Heaton John Michael
Wight david robert
Application Number:
JP2000518302A
Publication Date:
January 07, 2009
Filing Date:
October 21, 1998
Export Citation:
Assignee:
QINETIQ LIMITED
International Classes:
G01J3/18; G01J3/45; G02F1/01; G02B6/34; G02B6/28
Domestic Patent References:
| JP7218935A | ||||
| JP4326308A | ||||
| JP8234244A | ||||
| JP7058386A | ||||
| JP8509079A |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda