Coherent light generators – Particular beam control device – Tuning
Reexamination Certificate
2007-05-15
2007-05-15
Vo, Tim (Department: 2163)
Coherent light generators
Particular beam control device
Tuning
C372S018000
Reexamination Certificate
active
11036526
ABSTRACT:
An external cavity laser apparatus and method wherein wavelength or channel selection is carried independently from adjustment of external cavity optical path length. The apparatus comprises a wavelength or channel selector tuner and an external cavity tuner, wherein the wavelength tuner is uncoupled from the external cavity tuner. The tuning mechanisms for wavelength selection and cavity optical path length are configured to operate independently or orthogonally with respect to each other. The wavelength tuner may operate according to a first, channel selection signal, while the external cavity tuner operates according to a second, external cavity adjustment signal. The wavelength tuner and external cavity tuner may operate under the control of the same, or of separate controllers. The channel selection signal may be derived from a look-up table of adjustment parameter data accessed by a controller, and the external cavity adjustment signal may be derived from an error signal from a detector configured to measure external cavity loss.
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Shtengel, G.E.
Chapman William B.
Daiber Andrew
Farinas Alejandro D.
Li Hua
Blakely , Sokoloff, Taylor & Zafman LLP
Vo Tim
Vy Hung Tran
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