Coherent light generators – Particular beam control device – Tuning
Patent
1998-01-14
2000-07-18
Davie, James W.
Coherent light generators
Particular beam control device
Tuning
372 19, H01S 310
Patent
active
06091744&
ABSTRACT:
A broadband wavelength-selectable laser includes a gain medium, an optical transmission filter, and an optical fiber with a reflective filter such as a series of fiber Bragg gratings (FBGs). The gain medium is preferably a semiconductor laser diode that generates broadband optical energy. The gain medium is optically connected to the optical transmission filter, such as a bandpass filter, a notch filter, or a periodic filter, which converts the broadband optical energy into filtered optical energy having wavelength bands of high transmissivity and wavelength bands of low transmissivity. The optical transmission filter is optically connected to the series of FBGs that reflects different wavelength bands of optical energy. Either the optical transmission filter or the FBGs are tunable over a wavelength range that includes the desired laser wavelengths. Tuning a laser to a selected wavelength requires tuning either the optical transmission filter or the FBG that corresponds to the desired wavelength so that the selected wavelength of optical energy is reflected back toward the gain medium, thereby inducing lasing at the selected wavelength. The single wavelength laser light is suitable for wavelength division multiplexed applications.
REFERENCES:
patent: 4914665 (1990-04-01), Sorin
patent: 4995028 (1991-02-01), Alferness et al.
patent: 5581572 (1996-12-01), Delorme et al.
patent: 5715265 (1998-02-01), Epworth
patent: 5828681 (1998-10-01), Epworth
patent: 5838714 (1998-11-01), Delorme
patent: 5894492 (1999-04-01), Welch et al.
Baney Douglas M.
Sorin Wayne V.
Davie James W.
Hewlett--Packard Company
Wise Robert E.
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