Tunable external cavity laser

Details Tunable external cavity laser Tunable external cavity laser

2005-02-08

2005-02-08

Wong, Don (Department: 2828)

Coherent light generators

Particular beam control device

Tuning

C372S099000, C372S102000, C372S105000

Reexamination Certificate

active

06853654

ABSTRACT:
Apparatus and methods that utilize tunable elements to provide for selective wavelength tuning of a light beam. The apparatus comprises a first tunable wavelength selection element having a first adjustable free spectral range, a second tunable wavelength selection element having a second adjustable free spectral range, with the first and second tunable wavelength selection elements configured to define a tunable joint transmission peak. The first and second tunable wavelength selection elements respectively define first and second pluralities of tunable transmission peaks, wherein respective ones of each of the first and second plurality of transmission peaks are aligned to obtain a joint transmission peak that may be adjusted by tuning the wavelength selection elements. The free spectral ranges of the wavelength selection elements are configured to enable a Vernier tuning effect.

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