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公开(公告)号：DE60036970D1
公开(公告)日：2007-12-20
申请号：DE60036970
申请日：2000-02-09
Applicant: LUCENT TECHNOLOGIES INC
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公开(公告)号：DE60128847D1
公开(公告)日：2007-07-26
申请号：DE60128847
申请日：2001-03-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： AHUJA ASHISH , EGGLETON BENJAMIN JOHN , NIELSON TORBEN N , ROGERS JOHN A
IPC: G02B6/02 , G02F1/01 , G02B5/18 , G02B6/00 , G02B6/24 , G02B6/34 , H01S3/06 , H01S3/067 , H01S3/10 , H04B10/17 , H04B10/29
Abstract: In accordance with the invention, an optical waveguide grating with an adjustable optical spacing profile comprises a waveguide grating in thermal contact with one or more resistive film coatings. A coating extends along the length of the grating and its local resistance varies along the length of the grating. In one embodiment, a plurality of overlaping coatings are chosen so the resistance variation of each is different, thereby permitting a variety of heat generation profiles to be effected by independent control of the coatings. The different heat generation profiles, in turn, proportionately change the grating geometric spacing and local refractive index along the grating length, providing the desired adjustable optical spacing profile. Other embodiments use resistive films with abruptly changing or periodically changing heating variation.
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公开(公告)号：DE60022106T2
公开(公告)日：2006-06-22
申请号：DE60022106
申请日：2000-02-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： EGGLETON BENJAMIN JOHN , JACKMAN REBECCA JANE , ROGERS JOHN A , STRASSER THOMAS A
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公开(公告)号：DE60202433T2
公开(公告)日：2006-01-12
申请号：DE60202433
申请日：2002-07-22
Applicant: LUCENT TECHNOLOGIES INC
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