Multiple output Raman fiber laser with stable and small...

Details Multiple output Raman fiber laser with stable and small... Multiple output Raman fiber laser with stable and small...

2006-11-14

2006-11-14

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Optical fiber laser

C372S003000

Reexamination Certificate

active

07136401

ABSTRACT:
Disclosed is a Raman laser device (10) having a first cavity in which lasing occurs at a first frequency, and at least one second cavity in which lasing occurs at a second frequency. Thereby respective first and second waves inside the respective cavities are generated having a first power and a second power, respectively. Further, beams propagating outside the cavities are generated by coupling out a part of the first power and a part of the second power utilizing respective output mirrors. The part of the second power that is coupled out is attenuated without attenuating the complementary part of the second power remaining in the second cavity. The Raman laser device is characterized in that the part of the second power that is coupled out is attenuated utilizing at least one Fiber Bragg Grating (46, 62).

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Brilland et al, “Slanted gratings UV-written in photosensitive cladding fibre”, Electronics Letters, IEE Stevenage, GB, vol. 35, No. 3, Feb. 4, 1999, pp. 234-235, XP006011729.

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