Fiber amplifier having modified gain spectrum

Details Fiber amplifier having modified gain spectrum Fiber amplifier having modified gain spectrum

1991-08-12

1992-07-14

Ullah, Akm E.

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide core

385123, 385141, 372 6, 372 9, G02B 600

Patent

active

051310694

ABSTRACT:
Disclosed is a fiber amplifier system including a gain fiber having a single-mode core containing dopant ions capable of producing stimulated emission of light at wavelength .lambda..sub.s when pumped with light of wavelength .lambda..sub.p. Absorbing ion filtering means is operatively associated with the gain fiber to alter the gain curve. If the absorbing ions are the same as the gain ions of the gain fiber, the system further includes means for preventing pump light from exciting the gain ions of the filtering means. The excitation prevention means may take the form of means for attenuating pump light. If the absorbing ions are different from the dopant ions of the gain fiber, such absorbing ions can be subjected to light at wavelength .alpha..sub.p, but they will remain unexcited. Such absorbing ions can be used to co-dope the gain fiber, or they can be incorporated into the core of a fiber that is in series with the gain fiber.

REFERENCES:
patent: 5050949 (1991-09-01), DiGiovanni et al.
"Optics Guide 4", Melles Griot pp. 11-2-11-3.
"Introduction to Materials Science for Engineers" Shackelford, MacMillan Publishing, .COPYRGT.1985, pp. 340-342.

Affiliated with

Also associated with

Rating

Fiber amplifier having modified gain spectrum does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fiber amplifier having modified gain spectrum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber amplifier having modified gain spectrum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-342202