Coherent light generators – Particular beam control device – Tuning
Reexamination Certificate
2006-09-26
2010-11-09
Nguyen, Dung T (Department: 2828)
Coherent light generators
Particular beam control device
Tuning
C372S050100, C372S050110, C372S102000
Reexamination Certificate
active
07830927
ABSTRACT:
A tunable laser comprises a gain section and two or more reflectors. At least one of the reflectors is a Bragg grating comprising a reduced strength section comprising a base order periodic pattern of marks and spaces from at which at least some of the marks or spaces are missing. This enables the reflective strength of the grating to be controlled relative to the other reflector. The Bragg grating may be a phase change grating with individual sections being reduced in strength by line removal.
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Reid Douglas Charles John
Ward Andrew John
Nguyen Dung T
Oclaro Technology Limited
Renner , Otto, Boisselle & Sklar, LLP
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