Laser oscillator

Details Laser oscillator Laser oscillator

2011-03-01

2011-03-01

Bolda, Eric (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S347000, C372S006000

Reexamination Certificate

active

07898733

ABSTRACT:
A laser oscillator includes a ring resonator. The ring resonator includes an optical circulator having first, second, third, and fourth ports and a first optical amplification fiber connected to the optical circulator. Light incident on the first port is exited from the second port, and light incident on the second port is exited from the third port. The fourth port provides an exciting light and injects the exciting light into the ring resonator through the first port. The first optical amplification fiber amplifies light exited from the third port with the exciting light provided by the fourth port. The laser oscillator also includes an optical member connected to the optical circulator. The optical member reflects at least a part of the light exited from the second port and injects the same into the second port again.

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Jhon et al., “Single-frequency and single polarization Er3+-doped fiber ring laser with less than 0.7 kHz linewidth”, The Pacific Rim Conference on Lasers and Electro-optics, vol. 1 pp. 23-24, 1999.

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