Thulium-doped fiber amplifier

Details Thulium-doped fiber amplifier Thulium-doped fiber amplifier

2006-04-11

2006-04-11

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S341400, C359S341320, C359S341330

Reexamination Certificate

active

07027218

ABSTRACT:
A thulium-doped fiber amplifier is disclosed and includes a thulium-doped fiber to amplify optical signals belonging to S-band, a first pumping unit to output amplified spontaneous emission that represents a peak value in a predetermined wavelength range belonging to C-band, to pump the thulium-doped fiber, and a second pumping unit to output pumping light belonging to the wavelength band different from the C-band to pump the thulium-doped fiber.

REFERENCES:
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patent: 1039593 (2000-09-01), None
patent: 1263097 (2002-12-01), None
Zirngibl, M., Gain Control in erbium-doped fibre amplifiers by an all-optical feedback loop, Mar. 28, 1991, Electronics Letters, vol. 27 No. 7, pp. 560-561.

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