Tunable laser light source

Details Tunable laser light source Tunable laser light source

2006-08-29

2006-08-29

Menefee, James (Department: 2828)

Coherent light generators

Particular beam control device

Tuning

C372S100000, C372S102000

Reexamination Certificate

active

07099358

ABSTRACT:
A gain medium12and a tunable filter are provided in an optical path of laser oscillation. The tunable filter has an optical beam deflector for periodically changing an optical beam at a constant angular speed, a prism26on which deflected light is made incident, and a diffraction grating27. Appropriate selection of the apex angle α of the prism26and an angle β formed by the prism26and the diffraction grating27can provide a tunable laser light source for changing the oscillation frequency at high speed and a constant variation rate.

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Yamashita, S. et al., Widely Tunable Erblum-Doped Fiber Ring Laser Covering Both C-Band and L-Band, IEEE Journal on Selected Topics in Quantum Electronics, Jan./Feb. 2001, pp. 41-43, vol. 7, No. 1.

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