An optical fiber coupler, a process for fabricating the same...

Details An optical fiber coupler, a process for fabricating the same... An optical fiber coupler, a process for fabricating the same...

G - Physics

02

B

G02B 6/26 (2006.01) G02B 6/28 (2006.01) H04B 10/17 (2006.01) H01S 3/067 (2006.01) H01S 3/16 (2006.01)

Patent

CA 2309515

An optical fiber coupler for optical fiber amplifier use in the field of optical communications is provided. The optical fiber coupler comprises: a rare earth-doped fiber as an optical amplifying element; a quasi rare earth-doped fiber for entrance of input signal light; a fused-stretch fiber portion as a multiplexing element which connects a part of the rare earth-doped fiber and a parts the quasi rare earth-doped fiber, wherein the fused-stretch fiber portion formed by stretched a fused mixture of parts of the rare earth-doped fiber and the quasi rare earth-doped fiber; and a single mode fiber which is jointed at a fused joint portion to another shortened rare earth-doped fiber connected to the fused-stretch fiber portion on a side connected by the quasi rare earth-doped fiber. The quasi rare earth-doped fiber has substantially equal propagation constant to the rare earth-doped fiber without substantially containing rare earth elements. The optical fiber coupler is fabricated by the steps of jointing a single mode fiber with a rare earth-doped fiber by fusing abutted end faces of both fibers to form a combined fiber; and fusing parallel contact parts of a quasi rare earth-doped fiber and of the rare earth-doped fiber of the combined fiber and then elongating the fused parts in a desired diameter to form a fused-stretch fiber portion.

Affiliated with

Also associated with

Rating

An optical fiber coupler, a process for fabricating the same... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with An optical fiber coupler, a process for fabricating the same..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An optical fiber coupler, a process for fabricating the same... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2064893