Remotely pumping type multi-wavelength light transmission system

Details Remotely pumping type multi-wavelength light transmission system Remotely pumping type multi-wavelength light transmission system

1997-10-21

1999-05-11

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Optical fiber

359160, 359337, G02B6/28

Patent

active

059033851

ABSTRACT:
Multi-wavelength light is transmitted from a sending station to a receiving station. An erbium-doped optical fiber is installed on the transmission path that connects the sending station and the receiving station. Pump light is supplied from a light source installed in the receiving station to the erbium-doped optical fiber. In the receiving station, the multi-wavelength light is decomposed into the component wavelength signals. The light level of each component wavelength signal is detected, and the power of the light emitted by the light source is controlled so as to equalize those light levels.

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Terahara et al, OSA Trends in Optics and Phafanies, vol. 5, pp. 302-305, Jul. 13, 1996. Abst. Only Herewith.
Naito et al, Conf. an Opt. Fiber Commun., 1997 OSA, vol. 6, pp. 45-46. Abst. Only Herewith, Feb. 21, 1997.
Terahara, Takafumi et al. "WDM Transmission Experiments over 2640 km of Eight NRZ, 10-GB/s Data Channels". Technical Digest. Summaries of Papers Presented at the Topical Meeting Optical Amplifiers and Their Applications, Jul. 11-13, 1996, Monterey, California. pp. 10-13.
Naito, Takao et al. "128-Gbit/s WDM transmission of 24 5.3-Gbit/s RZ signals over 7828 km using gain equalization to compensate for asymmetry In EDFA gain characteristics". Technical Digest. Conference on Optical Fiber Communications, Feb. 16-21, 1997 Dallas Convention Center, Dallas, texas. 1997 OSA Technical Digest Series, vol. 6, pp. 45-46.

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